Sep-30, 2025

• Release 12.1 of the SDL Component Suite
• Support of the new RadStudio 13 Florence / Delphi 13 Florence / C++Builder 13 Florence
• several improvements and new features (see below for a detailed list)

  • SDL_dstruct
    
    • renamed the class T2DArrrayStack to TD2DArrayStack to be more consistent

  • SDL_filesys
    
    • the new function PathDiff extracts the difference of two pathes

  • SDL_math1
    
    • implemented the function GreatestCommonDivisor to calculate the greatest common divisor if two or more values

  • SDL_math2
    
    • implemented new method TCurveFit.CalcLinFitThroughOrigin

  • SDL_matrix
    
    • the new method TMatrix.Balance tries to improve the eigenvalue accuracy

  • SDL_numio
    
    • the new property TNumIO2.BlockKbdInput allows to selectively block the numeric keyboard entry

  • SDL_openarrays
    
    • extended FloodFillArray by an overloaded version to cope with different pixel neighborhood definitions
    • implemented the function ConvertToColorMap to convert an integer array to a color image

  • SDL_rchart
    
    • the methods TRChart.DetectScale and TContourPlot.DetectScale have been extended to specify the capture range
    • the new property AllowZoomPanToggle controls the toggle switch between maPan and maZoom
    • the limits of the background areas (BackGroundImg.AreaMode = bamVStripe..bamHStripeInv) are automatically exchanged to avoid invisible regions

  • SDL_replist
    
    • the new method RemoveSelectedRows removes all selected rows at once

  • SDL_sdlbase
    
    • new type declaration TArrayOfDouble2DArray

  • SDL_sdlcolors
    
    • the Color Array Definitions have been extended by the default Python color set (ColorArray_PythonDefault)

  • SDL_statis
    
    • the new function CFF1Score calculates the F1 score of classifiers
    • the cross validator now provides the accuracy and the F1Score as additonal classification metrics

Apr-29, 2025

• Support of the 64 bit IDE of RadStudio 12 Athens / Delphi 12 Athens / C++Builder 12 Athens

Dec-13, 2023

• Release 12.0 of the SDL Component Suite
• Support of the new RadStudio 12 Athens / Delphi 12 Athens / C++Builder 12 Athens
• many improvements and new features (see below for detailed list)

  • SDL_colsel
    
    • the method FindColorEntry allows finding a particular color in the color array of the component

  • SDL_datatable
    
    • the new methods RemoveUnmarkedRows and RemoveUnmarkedColumns allow removing unmarked rows and columns
    • the new method RemoveMarkedColumns allows removing marked columns
    • the new method SetCellStates allows to set the cell state of a range of cells by logical combination
    • implemented the new method DuplicateDataAsArray to create a duplicate copy of the numeric data
    • extended CopyDataColumnToVector and CopyDataRowToVector by more overloaded versions
    • implemented two additional overloaded versions CopyDataRowToArray and CopyDataColumnToArray
    • implemented CopyDataFromVector
    • implemented CopyDataFromArray for one-dimensional arrays
    • extended the method CopyDataToMatrix by additional parameters to get a more flexible copy method
    • the method CopyDataToArray has been extended by additional parameters
    • extended the methods MakeValidRowRange and MakeValidColRange to provide feedback code if a restriction applies
    • extended the method CopyDataFromArray by more parameters to allow a more flexible copying process
    • CopyContentsFrom is replaced by Clone
    • implemented the method CopyDataFromMatrix
    • implemented the methods CopyDataColumnFromVector, CopyDataColumnToVector, CopyDataRowFromVector and CopyDataRowToVector
    • implemented the methods SplitDataSet and PrepareSplitCounts to support the creation of subsets
    • implemented the function FindCells to search for cells having a specific value
    • implemented SliceCol and SliceRow to extract data from a table
    • implemented the event OnExportText
    • the new method IsConstantRow checks is all values in a row are constant
    • the method IsConstantColumn provides now a second overloaded version which returns the found constant value
    • the new method RemoveRows allows to delete a range of rows of a datatable
    • the new method IsDichotomousColumn tests whether the values in a column are dichotomous
    • the method ImportFromCSV provides now a second overloaded version which allows to skip the first N lines and to stop at a specific line
    • the new method CopyColumnFrom copies an entire column from an external data table
    • bug fix: one overlaid version of TDataTable.ExportAsASC did not return the error code as the function value
    • bug fix: TDataTable.ExportAsCSV did not include the header of the attributes
    • bug fix: CreateContingencyTable caused an access violation due to shifted indices
    • bug fix: TDataTable.SplitDataSet did not copy the cell states

  • SDL_dendrogram
    
    • bug fix: TDendrogram.CopyToBitMap caused a shifted scale on the target bitmap and assigned the wrong font

  • SDL_dstruct
    
    • implemented SHA1FromStringUnicode32 to support 32-bit Unicode strings
    • implemented an overloaded version of TStringArray.Sort to provide independent specification of the sort orders
    • the class TBitFld provides two new methods: Hash and SelectRandomBit
    • the new class T2DArrayStack supports stacks of mixed-size two-dimensional arrays
    • bug fix: memory leak in TFeatureMatrix fixed
    • bug fix: TBitFld.RandomFill did not correctly fill the bit field if the number of bits to be set exceeded half the size
    • bug fix: SHA1FromString assumed a 1-byte string and thus processed only the first half of the 2-byte Unicode string; the old version is kept as SHA1FromStringOld

  • SDL_filesys
    
    • implemented the function ReadStringFromTextFile to read text from a textfile into a string
    • implemented a collection of easy to use routines for accessing the Windows registry: DeleteRegKey, DeleteRegValue, GetRegAllSubkeys, GetRegAllValueNames, GetRegValue, GetRegValueAsBoolean, GetRegValueAsDouble, GetRegValueAsInt, RegKeyExists, RegValueExists and SetRegValue
    • the new function FilterCopyTextFile allows to remove certain lines from a text file
    • the new procedure ClearTextFile empties a text file
    • the new function GetMemoryUsed returns the amount of memory used by the current process

  • SDL_foldertree
    
    • the new property Options allows now to include symbolic links and hidden and system files
    • bug fix: TFolderTree.SelectPath caused an error message if TFolderTree was on a modal form

  • SDL_fourier
    
    • implemented Tukey weighting (see property WeightingWindow)

  • SDL_math1
    
    • implemented an overlaid version of QuickSelect which addresses the speed problem if there are many equal data values
    • the function Hex has been extended to provide up to 16 hex digits
    • HexToDouble and HexToSingle have been extended by an overloaded version which allows to control the endianess of the input string
    • bug fix: RoundNeg125, RoundPos125 and Round125 did not deliver exact integer values (were off by approx. 1e-15)

  • SDL_math2
    
    • the class TMathExpression now supports the calculation of the minimum and maximum of a list of variables
    • the new function ClassScatterMatrices calculates the within-class and between-class scatter matrices
    • the new method TCurveFit.RMSDiff calculates the root mean square of the x-y differences
    • the class TCurveFit has been extended to provide a more convenient model fitting: CalcRegModel, Predict, Evaluate, ModelPar, PolyOrder, Residual, FitQual, StdDevResid and CPXShift
    • SDL_math2.FindCenters does not longer store auxiliary data in a file on the disk (it now stores it in a dynamic array)
    • the class TMathExpression now allows to block arithmetic exceptions (properties BlockExceptions and ErrorValue)
    • implemented a second overloaded version of MultiLinReg
    • the new function VarInflatFactor calculates the variance inflation factors of a dataset
    • bug fix: PolygonLength calculated wrong length for closed polygons

  • SDL_matrix
    
    • implemented TMatrix.DuplicateDataAsArray and TIntMatrix.DuplicateDataAsArray to copy the entire matrix to a two-dimensional array
    • implemented FillSerial (Matrix/IntMatrix/Mat3D) and FillSerial (Mat4D)
    • extended and improved TMatrix.CopyFromArray and TIntMatrix.CopyFromArray (more parameters, more overloaded versions)
    • extended the methods TMatrix.CopyToArray and TIntMatrix.CopyToArray to provide a better control of the copying process
    • extended the following methods to provide a feedback code: MakeValidRowRange, MakeValidColRange, TMat3D.MakeValidLayerRange and TMat4D.MakeValidTSlotRange,
    • implemented CopyColTo1DArray and CopyRowTo1DArray
    • implemented an overloaded version of T(Int)Matrix.CopyColToVec and CopyRowToVec to allow copying into a specific vector position
    • the method Diff calculates the finite differences
    • CalcHatMatrix now provides a numeric error code as function result (instead of a boolean value) to make it compatible with the same routine in SDL_openarrays
    • the methods StandardizeColumns and StandardizeRows now automatically resize the mean/stddev vectors
    • the new method MultiplyLayersByArray multiplies an array with the layers of TMat4D elementwise
    • the new method ResampleExtMat resamples an external two dimensional matrix
    • the new events TMat4D.OnResize, TIntMatrix.OnResize, TMatrix.OnResize and TMat3D.OnResize are triggered if a matrix changes its size
    • the method EdgeVector has been extended to calculate values from selected columns/rows; the edge operation has been extended by the standard deviation
    • bug fix: the .Resize methods of the classes TMatrix, TIntMatrix, TMat3D and TMat4D did not provide proper return values if the params were out of range
    • bug fix: if a TMatrix, TIntMatrix, TMat3D or TMat4D was loaded from an XML file the matrix was not correctly resized
    • bug fix: the method ReadBinaryHeader of the classes TMatrix, TIntMatrix, TMat3D and TMatd4D crashed if the specified file did not exist
    • bug fix: TMatrix.LoadBinary did not trigger the OnPercentDone event

  • SDL_minical
    
    • TMiniCal now shows a label on the 'today' button
    • double clicks are now only effective within the calendar area

  • SDL_ntabed
    
    • implemented the OnEmptyStChanged event and the method ChangedEmptyStates
    • implemented the display of an empty message (properties EmptyMessage and ColorEmptyMsg)
    • the popup menu of the data table has been extended by the command "Reset All Empty States"
    • the new properties VRangeHigh and VRangeLow support the automatic limiting of numeric values
    • the order of the menu entries 'data read-only' and 'extract from clipboard' in context menu are now exchanged
    • disabling a menu entry via PopupDMask now makes it invisible (not just disabled)
    • bug fix: the context menu of TNTabEd did not correctly disable/enable the paste command if the table was switched to readonly
    • bug fix: the checking of the readonly flag of cells was shifted by the number of fixed columns/rows in the OnKeyPress and OnKeyDown events

  • SDL_numio
    
    • the TNumIO2 component supports now an optional "freeze checkbox" which can be controlled by the following properties: FreezeBoxVisible, FreezeBoxLeft, FreezeBoxTop, FreezeBoxSize, FreezeBoxChecked and HideInputOnFreeze
    • the new property HideInputEditor allows to block any inputs to the control
    • bug fix: TNumIO2 did not handle Ctrl-V correctly

  • SDL_openarrays
    
    • additional overloaded versions of DichotomizeArray
    • bug fix: DichotomizeArray created result arrays which were short by one element
    • the new function CreateMaskShape supports the creation of array masks
    • renamed FillArrayRix to FillArraySerial and extended the function by two additional parameters to specify both and offset and an increment
    • implemented the two functions Copy2DColTo1DArray and Copy2DRowTo1DArray to copy data from 2D to 1D arrays
    • CopyVectorToArrayColumn/CopyToArrayRow are renamed to CopyToArrayColumn/CopyToArrayRow
    • the functions NormalizeColumns and NormalizeRows normalize the rows and the columns of an array
    • bug fix: EdgeVector calculated wrong mean if Orient was orHoriz
    • implemented the function EigenDecomposition to calculate the eigenvectors and eigenvalues of a symmetric matrix
    • implemented the functions LUDecomposition and LUPDecomposition
    • implemented the new function PermuteArray to permute the columns/rows of an array
    • the method MultiplyArrays has been extended by overloaded versions allowing to mix integer and double 2D arrays
    • the new procedures MeanCenterColumnsOfArray and MeanCenterRowsOfArray support the mean-centering of 2D arrays
    • the new function RescaleArray allows to normalize the data in an array
    • a new overloaded version of the function PercentileArray has been added
    • the new functions LocalMean and LocalMedian calculate the mean and the median of an array around a specific cell
    • the function CountTrueCellsOfArray has been extended to restrict the range where the TRUE values are counted
    • the new function MeanAbsDev calculates the mean absolute deviation
    • the function PercentileArray now supports integer arrays as well
    • the new functions IsMonotone and IsStrictlyMonotone check whether the values of a one-dimensional array are (strictly) monotone
    • the new function ListCellPositions converts a boolean array into cell indices
    • the new function ReciprocalArray calculates the reciprocal values of all elements of an array
    • the new function Resample2DArray resamples a two dimensional array
    • the new function CheckLinearity checks a series of values for equidistance
    • the new procedure SerializeArray serializes two-dimenional arrays
    • the new function BoundingRect determines the bounding rectangle of non-zero regions in arrays
    • the functions MinArray and MaxArray now support more overloaded options returning the indices of the found minima/maxima
    • the new function SumArrayMasked calculates the sum of non-masked cells
    • the function EdgeVector has been extended to calculate values from selected columns/rows; the edge operation has been extended by the standard deviation

  • SDL_plot3d
    
    • implemented CopyToBitmap to create a copy of the surface as a bit map

  • SDL_rchart
    
    • implemented TRChart.Cross and TContourPlot.Cross as new drawing primitives
    • the method ClearAnnotations has been extended to delete annotations belonging to a particular layer
    • implemented the new method TRChart.FindEncircledData
    • bug fix: TRChart.FindNearestItemAlongAxis did not work with y-axis and reference point was master coordinates (now replaced by center to account for rectangles etc.)

  • SDL_replist
    
    • new properties to monitor the sorting history: TRLData.LastSortColumnSec, TRLData.LastSortOrderSec, TReportListView.LastSortColumnSec and TReportListView.LastSortOrderSec
    • implemented an overloaded versions of RLData.Sort and of ReportListView.Sort to provide independent specification of the sort orders
    • implemented the methods SetSelectedRows and GetSelectedRows
    • implemented the event TRLData.OnTextExport
    • bug fix: colors of the headers were not adjusted when switching between enabled and disabled state
    • bug fix: TReportListview.AutoColWidth created a wrong width of checked columns
    • bug fix: elements in the first row of checked columns of a TReportListView could not be ticked off if the list was scrolled

  • SDL_rot3d
    
    • the new method CopyToBitmap copies the 3D plot to a bit map.
    • new methods and properties to support mouse traces: ClearMouseTrace, NumMTracePoints, MouseTrace, MouseTraceColor, MouseTraceInvert
    • the new method FindEncircledData allows finding data points within a closed polygonal

  • SDL_sdlbase
    
    • declaration of TNameStr

  • SDL_sdlcolors
    
    • the function ContrastBWColor returns the highest contrast black/white color
    • the function ObtainColorName provides now an overloaded version which returns both the hex code and the color name
    • the new function AdjustColorIntSat allows you to adjust the intensity and saturation of a color
    • bug fix: TColorArray.FillbyInterpolation crashed if the color palette was shorter than two entries

  • SDL_smithchart
    
    • the method ClearAnnotations has been extended to delete annotations belonging to a particular layer

  • SDL_statis
    
    • the new class TMLRModel supports the creation of MLR (multiple linear regression), LDA (linear discriminant analyis) and RR (ridge regression) models
    • implemented the function AkaikeInfCrit
    • implemented the function GiniCoeff to calculate the Gini coefficient
    • implemented the function TheilSenEstimator for robust linear regression
    • implemented the properties TCrossValidator.FNCnt, TCrossValidator.FPCnt, TCrossValidator.TNCnt, and TCrossValidator.TPCnt
    • implemented the two properties TCrossValidator.FNRate and TCrossValidator.TNRate
    • implemented the BartlettTest
    • implemented the binomial sign test BinomSignTest
    • implemented a test for kurtosis: CalcAndTestKurtosis
    • implemented a test for symmetry of distributions: CalcAndTestSkewness
    • implemented PerformSiegelTukeyTest to perform a Siegel-Tukey test for equal variances
    • implemented a second overloaded version of PerformKSNormalityTest to support dynamic arrays
    • the function GrubbsTest has been changed and extended to support dynamic arrays as well
    • the new function CorrTest tests whether the correlation of two datasets is significantly different from a reference value
    • implemented the function PearsonCorrCoeff for calculating Pearson's correlation coeffcient from two arrays
    • the class TPLSModel has been extended by the property CvdMCC
    • the class TCrossValidator provides now the array property MatthewsCorr
    • implemented a second overloaded version of PerformMannWhitneyUTest
    • implemented a third overloaded version of Perform2SampleTTest
    • implemented PerformFTest, Perform1SampleChi2Test, Perform1SampleTTest and WilcoxonSignedRankTest
    • the function PerformLillieforsTest is now available in a second overload version supporting open arrays
    • implemented an overloaded version of DeanDixonTest and of ShapiroWilkTest to support open arrays
    • the function CFInformedness returns the informedness of a binary classifier
    • the functions CFAccuracy and CFMatthewsCorr calculate the classifier accuracy and Matthew's correlation
    • the function ExtractClassifPerformance extracts a classifiers performance from a multi-class confusion matrix
    • the new members TPLSModel.SetObjTags and TPLSModel.ObjTag support object tags
    • the new members TPLSModel.ObjAttrib, TPLSModel.NameObj and TPLSModel.SetObjAttribs support object attributes and object names in PLS models
    • bug fix: BinomDistriQuantile did not return the ActualProb value
    • bug fix: FisherExactTest changed the frequency table
    • bug fix: the function UDistriIntegral returned a wrong probability (actually returned p[U-1] instead of p[U])

  • SDL_streams
    
    • bug fix: SDL_streams.ReadlnStream crashed if the final character was just LF instead of CRLF

  • SDL_stringl
    
    • the new function ScanStringForXMLTag scans a string for XML tags
    • the new function ReplaceControlChars replaces all control characters in a string
    • the new functions IsAllDec and IsAllHex test a string for all-decimal or all-hexadecimal characters
    • the new function CountControlChars counts the control characters in a string
    • the new function ConvertToTabs converts multiple spaces in strings to tabs
    • the new function IntToStrGrouped returns integer numbers as grouped strings
    • implemented a powerful sorting function for string lists: SortStringList

  • SDL_vector
    
    • added the OnResize event
    • renamed the method TVector.FillSeries to TVector.FillSerial
    • extended the method MakeValidElemRange to provide a feedback code
    • the methods CopyFrom2DArrayColumn and CopyFrom2DArrayRow copy columns or rows from a two-dimensional array
    • the method CopyToArray has been extended with more overlaid versions
    • the method FillSeries fills the vector with an arithmetic series
    • the method FindExact is now available for the TVector class, as well

Oct-20, 2021

• Support of the new RadStudio 11 Alexandria / Delphi 11 Alexandria / C++Builder 11 Alexandria

Aug-24, 2020

• Release 10.7 of the SDL Component Suite
• Support of the new RadStudio 10.4 Sydney / Delphi 10.4 Sydney / C++Builder 10.4 Sydney
• many improvements and new features (see below for detailed list)

  • SDL_cdata
    
    • the function GetEDXLines returns analytically interesting EDX lines

  • SDL_colsel
    
    • bug fix: TColSel did not trigger the onChange event if the color was redefined via the color dialog

  • SDL_cpuid
    
    • the new function GenerateCPUIDEx includes the MAC address of the network adapter (in addition to the CPU info)
    • bug fix: the function CheckGeneratedCPUID did not work correctly

  • SDL_datatable
    
    • the method ScanForCatValues analyses a categorical variable
    • the method Assign implemented
    • the new method RemoveMarkedRows removes all marked rows
    • the new methods CopyDataColumnFromArray, CopyDataColumnToArray, CopyDataRowFromArray and CopyDataRowToArray support the copying of columns and rows to and from open arrays
    • TDataTable.SumOfSquaredMarkedCells and TDatatable.SumOfSquaredNumCells calculate the sum of squared data cells
    • TDataTable.ExportAsASC and TDataTable.ImportASC now support the export and import of custom data
    • the function QuartilesOfMarkedCells calculates the quartiles of marked cells
    • the new methods CopyDataFromArray and CopyDataToArray allow to copy the numeric data to open arrays
    • new method IfAnyCellHasCellState allows to test cells states of a range of cells
    • the new method CreateContingencyTable calculates the contingency table
    • the method CountNominalIDs returns the number of defined nominal IDs
    • bug fix: the methods MinRowAttrib, MaxRowAttrib, MinColAttrib and MaxColAttrib returned an invalid row/column index under some circumstances

  • SDL_dstruct
    
    • implemented the routines DecodeBase64 and EncodeBase64 to support base-64 encoding
    • EncodeASCII85 now allows to insert line breaks
    • implemented TAssocArray.Assign
    • the new methods InsertColumn and RemoveColumn insert and remove a column to/from the string array
    • the new property TByteMatrix.DefaultValue allows to control the returned value, if the index of a byte is out of range
    • added the following methods of TFeatureMatrix: RemoveFeature, SetFeatType, RenumberFeatures, GenerateFeatNames

  • SDL_filesys
    
    • the new property ParentWnd of the TUnivSaveDialog allows to assign a parent window in order to control the position of the default dialog
    • the functions DateTimeToFileTime and FileTimeToDateTime convert file times to date times and vice versa.
    • the functions GetFileDates and SetFileDates support the access of file dates
    • the functions IsValidFileName and ReplaceInvalidFileNameChars test and process invalid filenames
    • the function GetMemoryStatus retrieves the available system memory
    • the function IsFN83CompliantPath checks for Windows 8.3 compliant filenames
    • the function GetMacAddress retrieves the MAC address of the network adapter

  • SDL_math1
    
    • the function modr calculates the remainder of a floating point division
    • the function Squash calculates a sigmoid function
    • the function InterpolXYTable now supports both ascending and descending pivot tables
    • the new function ProductConsecInts calculates the product of consecutive integers

  • SDL_math2
    
    • the function CalcRanks calculates the ranks of data in a vector
    • the function ReducePolygon allows to remove superfluous vertices from a polygon
    • the function CreateSigmoidArray fills an array with values of the sigmoid function
    • the function CreateGaussianPeaks generates a signal based on Gaussian peaks
    • the function Gauss2D fill an array with value from a Gaussian radial basis function
    • the functions ApplyCompassKernel and ApplyKirschKernel filter a 2D matrix by the compass and the Kirsch kernel, respectively
    • the new function KernelConvolve is a general 2D kernel convolving function
    • TMathExpression.HelperObject implemented
    • the function ExtractVarNames scans a mathematical expression for variable names
    • the functions ConvertFromDiffPolygon and ConvertToDiffPolygon allow to convert polygons between absolute and relative coordinates

  • SDL_matrix
    
    • TMat4D.LoadBinary now checks whether the file is too big for the 32-bit version
    • implemented TMat4D.CopyVectorToPixel and TMat4D.CopyPixelToVector
    • the LoadBinaryNoFmtCheck has been implemented to be able to load the old binary data format (which did not contain information on the numeric format)
    • the methods LoadBinary and SaveBinary have been extended to all four kinds of matrices (TMatrix, TIntMatrix, TMat3D and TMat4D)
    • the new methods RemoveRow and RemoveColumn delete specific columns or rows
    • the method Read4DLayer reads layer data from a binary TMat4D file
    • the method Read4DLayerAndAccumulate accumulates layer data obtained from binary TMat4D files
    • the new method TMat4DAccumulateLayer supports the accumulation of layers
    • the following methods of TMat4D have been converted to functions: AppendToBinaryFile, LoadBinary, ReadBinary, ReadLayer and SaveBinary
    • the new overloaded method TMat4D.FillLayer allows to fill a particular layer with differently distributed values
    • the method TMat4D.CopyPixelTo1DArray allows to copy a pixel of the 4D datacube
    • the methods TMatrix.Fill, TMatrix.FillRandomGauss and TMatrix.FillRandomUniform are now available in a second overloaded version
    • the method CalcHatMatrix calculates the hat matrix
    • implemented ExportAsASC and ImportASC
    • the classes TMatrix, TIntMatrix, TMat3D and TMat4D now provide public access to their internal data array if SDLPUBLICMAT is defined
    • added new overloaded versions of CopyFromArray and CopyToArray
    • added the method TMat3D.MeanVar

  • SDL_membl
    
    • first implementation of the memory based learner (aka. kNN)

  • SDL_ntabed
    
    • the new property ShowCellCursor controls the visibility of the cell cursor
    • the new event OnClear allows to replace the clear routine by user-defined code
    • bug fix: selection of TNTabEd was wrong after pasting data via PopupMenuClickExtClip

  • SDL_openarrays
    
    • the function IsDichotomous tests whether the values of an array are dichotomous
    • the function SortAndRemoveDuplicates sorts array values and removes duplicates
    • the function SaveArrayAsImg allows to save a matrix as an image (BMP, PNG, JPG or clipboard)
    • the functions ReadBinaryArrayHeader, LoadBinaryArray and SaveBinaryArray have been extended to support 3D and 4D matrices
    • the functions RemoveColumn and RemoveRow delete columns and rows of an array
    • the function CloneAndReverseArray clones an array and reverses the order of the elements
    • the function FindInArray search for a value in an array (both integers and strings)
    • the function SumOfSquaredDiffs calculates the sum of squared differences
    • the function DistanceOfObjects calculates a multivariate distance
    • the function FillArrayMasked allows to fill masked regions of a 2-dimensional matrix
    • the functions SortArray and ShuffleArray sorts and randomizes one-dimensional arrays, respectively
    • the function CalcHatMatrix calculates the hat matrix of a two-dimensional array
    • the function EdgeVector calculates various parameters along the edge of a two-dimensional array
    • the functions LoadBinaryArray and SaveBinaryArray load and save the 2D open arrays in binary form
    • the function ReadBinaryArrayHeader reads the header of a binary array file
    • BoolToNumArray converts a boolean array to a dichotomous numeric array
    • the function FloodFillArray implements a flood filling algorithm for matrices
    • DichotomizeArray extended to support more array types
    • implemented an overloaded version of PercentileArray which supports 2-dim. arrays
    • FindInSortedArray allows a quick search for array elements
    • CloneArray extended to deal with single precision arrays
    • InvertArray inverts boolean arrays
    • MinMaxArray extended to TSingleArray
    • MinArray extended to return the found positions of the minima for TIntArray and TInt2DArray
    • MaxArray extended to support TInt3DArray and TInt4DArray
    • PercentileArray calculates a quantile of the array values
    • FrequDistOfArray calculates the frequency distribution of array values
    • DichotomizeArray allows to create a boolean matrix from a numeric matrix
    • FillArrayRix fills the array with a running index
    • LoadArray loads data from files previously stored by StoreArray
    • the functions CopyVectorToArrayColumn and CopyVectorToArrayRow copy a vector to an array
    • the function EqualArrays compares two arrays
    • bug fix: FillArray of boolean array did not work correctly

  • SDL_rchart
    
    • TContourPlot provides a better oversampling resolution for low resolution images
    • bug fix: TRChart.Assign did not copy some of the annotation properties
    • bug fix: TContourPlot rendered the interpolated (oversampled) pixels at the wrong positions (shifted by half a pixel)
    • bug fix: RChart did not correctly calculate the extents of an tkMarkEBar element

  • SDL_replist
    
    • the methods TRLData.RemoveColumn and TRLData.InsertColumn allow to delete or insert a column
    • the method TRLData.InsertRow inserts a row
    • the method TReportListview.RemoveColumn deletes a column of the report listview
    • the method TReportListview.InsertColumn inserts a column in the report listview
    • SortEnabledState allows to sort the enabled and disabled rows of the report listview separately
    • bug fix: reading from XML files did not correctly read data if the number of rows was zero

  • SDL_rot3d
    
    • TRot3D supports now an unlimited number of colors of the data points (no longer limited to 32 colors)

  • SDL_sdlbase
    
    • the type declaration TDistMode and the definition of the corresponding IDs DistModeId has been moved from SDL_matrix to SDL_sdlbase
    • new type declaation TPIntArray for integer point arrays
    • the constant array CSVDELIMITERIDS provides now names of CSV delimiters

  • SDL_sdlcolors
    
    • the procedures ColorToHSV, HSVtoColor, HSVtoRGB and RGBtoHSV provide conversion routines for the HSV color system
    • the procedures ColorToHSL and HSLtoColor convert between TColor and the HSL color model
    • the procedures HSLtoRGB and RGBtoHSL convert between HSL and RGB color space
    • the functions HSItoColor and ColorToHSI transform a HSI color to the (RGB) TColor and vice versa
    • the new method LogTransform allows to create a logarithmic color scale
    • the new method TColorArray.ReverseRGB reverses the RGB order
    • the new methods TColorArray.Backup and TColorArray.Restore provide a simple backup and restore capability

  • SDL_statis
    
    • the new function MedianTest implements the median test
    • the new functions Chi2OfContTab and Chi2OfContTabYates calculate the chi-square value of a contingency table
    • the new class TCFEvaluator provides an easy way to calculate binary classifier metrics
    • the new function AdjustedRandIx calculates the adjusted Rand index
    • the new function FriedmanTest provides Friedman's test for homogeneity of groups
    • the new function LeveneTest provides Levene's test for equal variances
    • the new function Lambda calculates the Lambda value of contingency tables
    • the new functions DurbinWatson and DurbinWatsonCrit5pct support the application of a Durbin-Watson test for serial correlation.
    • the new function Prob2x2Contingency calculates the probability of a contingency table
    • the new function FisherExactTest calculates Fisher's exact test
    • the new function PerformChi2DistComp performs a chi²-test to compare empirical distributions
    • bug fix: TCrossValidator did not create the matrices XMat and YMat
    • bug fix: TCrossValidator.Execute did not correctly recognize the cases when calculating TPRate and FPRate

  • SDL_streams
    
    • new function StreamAsByteString reads a byte stream as ASCII string
    • the new class TMixedFStream supports the handling of mixed binary/ASCII strings

  • SDL_stringl
    
    • the new functions ExtractAfterTrigger and ExtractBeforeTrigger extract substrings
    • the new function SplitString splits a string into two halves
    • the new function NumberedPosBw searches for a substring backwards
    • the function CreateParList has been extended to support boolean arrays as well
    • the new function DetectCSVDelimiter scans a string for CSV delimiters
    • the new function ConvertVariant returns a string representation of the a variant value

  • SDL_univconst
    
    • Math constants uc_MaxInt64 abd uc_lnMaxInt64 added

  • SDL_vector
    
    • the new function IsDichotomous tests whether a vector is dichotomous
    • implemented ExportAsASC and ImportASC

 

(news prior to August 2020 removed)