***What free statistics package do you use?

Are there any OpenStat users out there?

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ANALYSES
Descriptive
Central tendancy, variability
Frequencies
Cross-tabulation
Breakdown
Normality Tests
X vs Y Plot
Group (integer) Frequency Chart
Repeated Measures Bubble Plot
QQ or PP Plot
Smooth Data by Averaging
Compare Two Distributions
Compare Observed to Theoretical Distributions
Three Dimensional Rotation
Box Plots
X versus Multiple Y Plot
Stem and Leaf Plot
Multiple Group X versus Y Plot
Resistant Line Analysis
Comparisons
Single Sample Tests
Test of Two Proportions
Test of Two Correlations
Test of Two Means
Binary Receiver Operating Characteristics
Analysis of Variance
One, Two or Three Way ANOVA
Two or Three Way ANOVA with One Case Per Cell
Treatment by Subject and Hoyt Reliability
One Within Subjects, One Between Subjects
One Within Subjects, Two Between Subjects
Two Within Subjects
Factor B Nested in Factor A
ABC Nested with B Nested in A
Analysis of Covariance
Latin Square Designs
Multivariate Analysis of Variance
Sums of Squares by Regression
Correlation
Product-Moment Correlations
Partial and Semi-partial Correlations
Auto correlations
Multiple Regression
Block Entry Multiple Regression
Stepwise Forward Multiple Regression
Stepwise Backward Multiple Regression
Simultaneous Multiple Regression
Best Fit Multiple Regression
Cox Regression
Weighted Least Squares MR
Non-linear Multiple Regression
Binary Logistic Regression
2 Stage Least Squares Regression
Interrupted Time Series Analysis
Multivariate
Principal Components and Factor Analysis
Discriminant Function and MANOVA
Path Analysis
Cluster Analysis
Hierarchical Cluster Analysis (Veldman)
Single Link Cluster Analysis
Average Link Cluster Analysis
K Means Cluster Analysis
Sum of Squares by Regression
Canonical Correlation
Classification Log Linear
Screening
AxB Log Linear
AxBxC Log Linear
Bartlett Test of Sphericity
Correspondence Analysis
Median Polishing Analysis
Non Parametric
Combinations and Permutations
Binomial Probabilities
Fisher's Exact Test
Runs Test
Chi-Square Analysis
Wilcoxon Matched Pairs Signed Ranks Test
Kruskal - Wallis Test
Friedman Test
Kendall's Tau Test
Kendall's Coefficient of Concordance
Sign Test
Mann-Whitney U Test
Q Test
Spearman Rank Correlation
Kaplan-Meier Survival Test
Sen's Slope Estimate (Series Data)
Kolmogorov-Smirnov Test
Kappa and Weighted Kappa
Generalized Kappa
RIDIT Analysis
Measurement
Classical Item Analysis and Reliability
Hoyt and Cronbach Reliability
Kuder-Richardson #21 Reliability
Composite Test Reliability
Spearman-Brown Prophecy
Rasch One Parameter Logistic Scaling
Three Parameter Logistic Scaling
Guttman Scaling
Successive Interval Scaling
Differential Item Functioning
Reliability Adjusted for Variance
Classification Reliability
Generalized Unfolding Model
Grading
Item Banking System
Enter / Edit Items
Specify a Test to Administer
Generate a Test
Generate Test Item Scores
Matrix Manipulation
Statistical Process Control
XBAR Chart
Sigma Chart
Range Chart
p Chart
CUM SUM Chart
c Chart
U Chart
Financial
Loan Amortization Schedule
Sum of Years Digits Depreciation
Internal Rate of Return
Present Value
Period Payment
Payment
No. of Periods
Net Present Value
Interest Rate
Interest Payment
Future Value
Double Declining Value
Neural Network
Linear Programming (SIMPLEX)
SIMULATION
Theoretical Distributions
Generate Sequential Values
Generate a Multivariate Distribution
Generate One of Six Theoretical Distributions
Generate Incremented Values
Simulate a Two-Way ANOVA
Simulate a Product-Moment Correlation
Generate an Evaluation Report
Power Curves for Hypotheses
Plot a z Distribution
Plot a Chisquare Distribution
Plot an F Distribution
Sample Size for a z Test
Resampling and Bootstrap Demo
Generate Probabilities
Studentized q
F Statistic
Chi Square Table
Hypergeometric
Combinations
Normal z Functions
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