stripping whitespace functions data type check functions partition functions other functions regular expressions from "remodule text pre-processing using string module the nltk toolkit shallow parsing displaying similar words creating summary of the document by data cleaning section iiicore statistics in python basic statistical functions statistical functions in statistics module measures of central tendency measures of spread statistical functions in scipy library descriptive statistics determining rank determining normality determining homogeneity of variances determining correlation chi-square test for correlation statistical functions in numpy library compare means parametric techniques one sample -test independent sample -test dependent -test one way anova non-parametric techniques kolmogorov-smirnov test for one sample kolmogorov-smirnov test for two samples mann-whitney test for independent samples wilcoxon test for dependent samples kruskal-wallis test regression simple linear regression multiple linear regression ordinary least squares regression logistic regression