Syntax: tcoutr <option> [<par1>] [<par2>] [<par3>]>
tcloutr is identical to the tclout command except that it also provides what is stored in $xspec_tclout as a return value. Therefore it can be used in tcl scripts like this:
set var1 [tcloutr energies 1]
tcloutr may produce quite a lot of unwanted screen output, which can be avoided by using tclout.