Stats Master Release History

General:

• Replaced binary serialization.
• Enabled support for the Preview OOP .NET Core Winform designer.
• Fixed component editor finalizer causing crashes.
• Separated Dew.Math.Tee, Dew.Math.TeePro, and Dew.Stats.Tee from the main nuget package to allow separate and faster updates.
• Updated Dew.Stats.Tee for the most recent TeeChart version.
• Bug fix for random number generators which sometimes caused range check error due to random number not fitting in to integer range.
• Support for .NET Framework 4.8, .NET Core 8.0 and 9.0 included.

• Support for Rad Studio Athens 13.0

• Support for Visual Studio 2022 v17.9.3
• Support for .NET Framework v2.0, .NET Core 7.0 and 8.0 (lower .NET versions only with older versions).
• Support for TeeChart v 2024.15.3
• Updated for Dew.Math 6.2
• Bug fix for MannWhitneyTest
• Rewritten the ARMA MLE fitting and the forecasting function used by ARIMA.
• Fixed a bug when fitting parameters of the Fisher random distribution.
• Added vectorized version of the Fisher PDF.

• Support for Rad Studio Athens 12.0
• Added ARIMA Trend decomposition example.
• Bug fix for MannWhitneyTest.
• Updated for MtxVec v6.2.0

• Android 11 tagged pointer support.

Time-series forecasting:

• Rewritten ARMAForecast
• Rewritten ARMAMLE
• Added new trend decomposition ARIMA example to Stats Master demo.
• Added Durbin-Watson statistics.

• Added support for RAD Studio 11 Alexandria

• Initial release of the Stats Master for .NET Core 5.0 rewritten in C#.

• Fixed a bug when fitting parameters of the Fisher random distribution.
• Vectorized version of the Fisher PDF.

• Bug fix for Stepwise multiple regression when running with enabled assertions (debug mode).

• Support for Sydney 10.4 and matching MtxVec v6 features.

• Matching MtxVec v6 with features.
• Added C++Builder support across all features.

• Support for Rad Studio XE10.3 Rio Update 3 and Android64 compiler.
• Support for combined (either double or single) precision where meaningfull.

• Support for Rad Studio XE10.3 Rio
• Installer support for FMX and Delphi platforms.

• New stepwise multiple linear regression component TMtxStepwiseReg. Suport for forward, backward and exhaustive search.
• Support for Linux in Rad Studio XE10.2 Tokyo (Update 2). The following units are functional in Linux: RegModels, Regress, Statistiscs, StatRandom and StatTools
• Bug fix for NegBinomPDF and NegBinomCDFInv (numerical stability)
• .NET bug fix for Marquardt optimization method (giving rise to "complement of two.." type of error).
• GeometricFit fix for confidence interval estimation.

• Updated for MtxVec v5.2 (Intel IPP and MKL update).
• Support for Rad Studio XE10.2 Tokyo.

• Updated for MtxVec v5.1.1 (Intel IPP and MKL update).
• Performance improvement for PairwiseDistance function (L2 norm) by roughly 10x.

• Updated for MtxVec v5.1 (Intel IPP v9 update and Intel MKL update).
• Cross platform support for FireMonkey on iOS, OS X and Android.
• Support for old and new C++Builder 32bit and 64bit compilers.
• Support for XE10.1 and related TeeChart updates.

• Updated for MtxVec v5.02 (Performance Enhancements, Android support).
• Update to Stats Master demo for FireMonkey to run also on Android tablets.
• Support for XE8 and related TeeChart updates.

• Update for MtxVec v5. All features are now available optionally also with full source pascal code running at lower speed, but with cross-platform portability.
• Updated for FireMonkey XE7.

• Added support for XE7.

• Added support for FireMonkey including all UI controls, Demo and TeeChart support from including XE5 forward.
• Fixed double and tripple exponential smoothing.
• Fixed a potential round off error with two-level full factorial design.
• Added new faster overload for histogram computation.

• Updated for TeeChart Pro 2011 and Delphi/C++Builder XE2 including support for 64bit compiler.

Statistics.pas, Regress.pas

• Fixed GrubbsTest
• Fixed bug with RegressTest and Constant param
• Fixed bug with TBiPlot demo
• Updated for TeeChart 2010 and Delphi/C++Builder 2010.

Statistics.pas

• Support for Delphi 2009 and CBuilder 2009
• New help files.
• Hypothesis test - fixed hypothesis result when test statistics was Inf or Nan.
• Several changes in Covatiance and CorrCoef implementation (vectorized)
• Fixed several bugs in A-D test. [StatTools.pas]
• GOFKolmogorov bug fixed.

StatProbPlots.pas

• Fixed Q-Q plot when plotting only one dataset.

• Improved random generators.
• Added Gumbel, Triangular, Erlang distribution random number generators.
• Changed implementation for all random generators to allow either use of MtxVec.Random.dll or "inhouse"
• simplified random generators.
• More examples, including C# an C++ examples.
• All examples have been updated with the new Vector/Matrix syntax.
• New HtmlHelp 2 format support. Now F1 works again.
• Added Chi-Squared distribution parameter estimate (ChiSquareFit).
• Added Cauchy distribution MLE parameter estimates (CauchyFit).
• Added Erlang distribution parameter estimates (ErlangFit).
• Added Laplace distribution MLE parameter estimates (LaplaceFit).
• Added Negative Binomial distribution parameter estimates (NegBinomFit).
• Expanded regression routines.
• Added PRESS and R2 functions.
• Several bug fixes.

• Several new routines for handling/manipulating time series.
• New tests for normal distribution, detecting outliers, etc.
• Improved examples and help files.
• Several bug fixes.
• Added Kolmogorov-Smirnov goodnes of fit test (one and two sample).
• Added empirical cumulative distribution function.
• Chi2 GOF test: added support for log-normal and uniform distribution.
• Added ZScores for vector.
• Added Bera-Jarque test of composite normality.
• Added Grubbs's test for outliers.
• Several bugs in routine Histogram fixed.
• Added single moving average function.
• Added sigle, double and triple exponential smoothing routines.
• Added sigle, double and triple exponential forecasting routines.
• Added ARMA/ARIMA simulation routines.
• Added ARMA/ARIMA estimation (MLE) routines.
• Added ARMA/ARIMA forecasting routines.
• Added Yule-Walker AR coefficients estimation.
• Added Burg AR coefficients estimation.
• Added Innovations ARMA and MA coefficients estimation.
• Added innovations and Durbin-Levinson algorithms.
• Added ARAR model fitting and forecasting routines.
• Added Box-Cox and inverse Box-Cox transformation.
• Added rational model fit.
• Added logistic model fit.
• Added Poisson regression.
• Added tMtxBinaryTest component for performing one and two test(s) binary diagnostic test.
• Added several new examples demonstrating time series analysis routines..

• The demo now compiles with VCL.NET.
• Fixed a memory leak for the custom editors.
• Support for Delphi 2005, 2006 W32 and .NET personalities and updated recompile tool.

• Compatible with MtxVec v2.
• Support for .NET.
• Support for SSE3 instruction set.
• Substantial increase in number of optimized primitive functions and methods via MtxVec v2.
• Improved range checking and programmer safety.
• Several bug fixes.
• Enhanced and more customizable routines.

Statistics.pas

• Added Chi-Squared and F tests for comparing variance(s).
• Added Spearman rank correlation test.
• Added LogNormalFit routine for fitting log-normally distributed values.
• Fixed the internal TiedRank routine (in some special cases ranks were not calculated correctly) and moved it to public section.
• Added autocovariance, autocorrelation and partial autocorellation functions.
• Added Chi2 Goodness of fit test routines.
• Added Shapiro-Wilks and Shapiro-Francia Goodness of fit test routines.
• Minor bug fixes.

StatSeries.pas

• Added control limits calculation for R-Chart.
• Added EWMA chart calculation.
• Removed the probability axis tool. Now the relevant code is included in probability series (simplified code - see updated example in Statistics demo).

Regress.pas

• Fixed R2 calculation for Constant := false case.
• Added logistic (simple and ordinal) regression routines.
• Minor bug fixes

StatTools.pas

• New TMtxLogistReg component which encapsulates logistic regression routines.

Fixed a potential round off error with two-level full factorial design.