Dew Lab Studio

Dew Research offers a series of math-related component libraries for .NET and VCL. Included in the Dew Lab Studio are:

- MtxVec is an object oriented numerical library for Delphi and .NET developers with matrix/vector arithmetic. It features a set of vectorized mathemathical functions which cover complex numbers, sparse matrices, math parser, probabilities, optimization unit, SVD, QR, LQ, and LU solvers, special functions, and more. All applications based on this library take advantage of CPU-specific code optimization and symmetric multiprocessing.

- DSP Master is a signal processing add on package for the MtxVec numerical library. The algorithms include: IIR (butterworth, elliptic, chebyshev type I and type 2) and FIR (window, remez exchange, Savitzky Golay) filter designers, functions for order estimation of filters, autoregressive linear prediction with spectral estimators (Yule Walker, Burg, Covariance, Modified Covariance), window functions (Hanning, Hamming, Kaiser, Chebyshev, etc.), phase unwrapping, group delay estimation, real and complex cepstrum, hilbert transformers, linear phase differentiators and integrators, chirp-Z transform, frequency domain integration and differentiation. Included components feature: frequency analyzer with band statistics and peak marking, real time higher order spectral analyzer, real time cross-spectral analyzer, signal generator, read/write different text, binary and WAV files with streaming support, rate converter, envelope detection, audio playback and recording with trigger and monitor function, peak file creation for file browsing, peak interpolation in the frequency spectrum, spectral statistics (Noise floor, SFDR, THD, THDN, SINAD, RMS, SNR)

- The Stats Master package offers statistical routines. Among others it contains: 19 different distributions (PDF, CDF and inverse CDF function), mean and variance for all 19 distributions, random generators for 15 distributions, parameter estimate for beta, binomial, exponential, gamma, geometric, normal, Poisson, continuous uniform and Weibull distribution. Descriptive statistics: histograms, ogives nth-Moment, percentile, range, Interquertile Range IQR, mean, harmonic mean, geometric mean, trimmed mean, median, skewness, kurtosis, standard deviation, root mean square RMS, minimum, maximum, covariance, correlation matrix, cumulative sum. Principal component analysis (PCA): PCA by using the covariance matrix, PCA Residuals, Barlett test for dimensionality. Hypothesys testing: Nonparametric tests (sign test, Wilcoxon tests) Parametric tests (one-sample t-test, two-sample paired/unpaired t-test), Z test. Regression models: linear (weighted, unweighted), multiple linear (weighted, unweighted), ridge regression, non-linear regression (using the BFGS, Marquardt or Simplex method), one-way and two-way ANOVA. Optional install: Statistical charts (precondition - installed TeeChart v5 PRO) normal plot, QQ plot, XBar plot, SPS charts, Weibull plot, Box plot, Histogram plot.

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