# tstools Documentation Index - [arma.select](arma.select.html) - [armafit](armafit.html) - [clearDate](clearDate.html) - [collect](collect.html) - [date.arithmetic](date.arithmetic.html) - [delta.sum](delta.sum.html) - [formF](formF.html) - [import.fred](import.fred.html) - [index](index.html) - [meanreg](meanreg.html) - [time_dummy](time_dummy.html) - [trim.dates](trim.dates.html) - [ts.check](ts.check.html) - [tsreg](tsreg.html) - [wald](wald.html)