{smcl} {* 19Nov2008}{...} {title:Examples} {p2col:{helpb wfex_loops:Loops}}{bf:foreach} loops using counters and saving results.{p_end} {p2col:{helpb wfex_ado:Ado-files}}Simple ado-files.{p_end} {p2col:{helpb wfex_graphs:Graphs}}Graphs.{p_end} {p2col:{helpb wfex_merge:Merging}}Merging datasets.{p_end} {p2col:{helpb wfex_miss:Missing}}Working with missing values.{p_end} {p2col:{helpb wfex_sample:Samples}}Selecting observations for analysis.{p_end}