fix

support file created on windows

add skewness and kurtosis

add command description

add precision feature

set default value on zeros and negatives

add some stats and optimize output style

optimize calculation speed

Merge pull request #4 from solaoi/fix_logic

fix binsize calculation and add q1,q3,iqr,binsize(FD,Square-root)

Merge pull request #3 from solaoi/feature_correlation-coefficient

add correlation-coefficient