Speaking Stata: Loops in parallel

This column is a tutorial discussing looping in parallel using foreach and forvalues. Such may use not only local macros defined for the purpose but also other devices, including gettoken command ways to increment decrement evaluate expressions. The main idea that set of loops essentially one loop with two or more sets actions. Examples cover over integers required specific display format, generating new variables defining variable labels at same time, binning as desired, putting skewness results variables. last example includes some historical comments on tangled literature measures medians quantiles.