StatFree 6.0

StatFree is a statistics, analysis, graphics and mathematics software package.
It provides several functions, as following :

- calculation of statistical measures (mean, sum, median, standard deviation, variance, standard error of mean, minimum, maximum, lower quantil, upper quantil)
- t-test
- F-test
- Chi²-test
- ANOVA
- correlation
- regression
- time series
- data management
- measurement analysis
- equation editor that allows to combine all functions, operators, densities, random number generators, together with up to 999 variables into complex equations for numerical evaluation
- two and three dimensional graphics
- Fourier transform (FFT and inverse FFT)
- residual analysis to calculate the optimal cutoff frequency for data filtering
- data filtering (F³ filter)
- spline approximation
- wavelet transform (Cohen-Daubechies-Feauveau wavelets - DWT and inverse DWT)
- exploration of deterministic chaos
- numerical solutions of differential equations

StatFree comes with example data sets (*.txt) and example equations (*.sfq), a context sensitive help file and tutorials.