Fixed in Origin 2018. Bug introduced in Origin 2017. For Example:
- Fill the 1st two columns of a worksheet with some numbers.
- Run "colstats 1:2;" in Script Window
==> It output cumulative statistics, e.g. In Output sheet, 1st row was statistics of 1st column; 2nd row was statistics of column 1 and 2 together. Statistics should be for column 2 only.