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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