DADiSP Stats Functions
DADiSP Stats includes several functions that encompass a wide variety statistical processing and analysis.
Descriptive statistics
max | Sample maximum. |
min | Sample minimum. |
mean | Sample average value. |
median | Sample median value. |
sersize | Sample size. |
stderr | Sample standard error. |
stdev | Sample standard deviation. |
var | Sample variance. |
Graphical statistics
boxplot | Box plot of minimum, maximum, minimum error and maximum error. |
comboplot | Combined plot of sample mean, median and variance. |
errorplot | Error bar plot. |
hist | N bin histogram. |
meanplot | Plot of sample means. |
medianplot | Plot of sample medians. |
polygraph | Polynomial fit plot. |
rchart | Statictical quality control range chart. |
varplot | Plot of sample variances. |
xchart | Statictical quality control mean chart. |
xrchart | Combined statictical quality control mean and range chart. |
xyplot | Scatter plot. |
Probability and hypothesis tests
chimultsum | Chi square goodness of fit for 2xN matrix. |
chitestsum | Chi square goodness of fit for 2×2 matrix. |
comp2sum | Two series pooled variance T test. |
compnoeqsum | Two series separate variance T test. |
ftestsum | F Ratio test. |
ttestsum | One tailed T test vs mean. |
ttest2sum | Two tailed T test vs mean. |
Regression
mrcoefs | Compute multiple regression coefficients. |
mrgraph | Plot multiple regression results. |
mulregsum | Multiple regression computatiuon and summary. |
polyfit | Linear and polynomial regression. |
ANOVA
anova | Analysis of Variance summary. |
correlatesum | Cross correlation summary. |
Probability density functions
chisum | Chi square probability. |
fprobsum | F probability. |
normsum | Normal (Gaussian) probability. |
tprobsum | T probability. |
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