CYANA Function: ifira: Difference between revisions

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== Synopsis ==


Synopsis: ifira(''integer'') = ''integer''
'''ifira(''integer'') = ''integer'''''
 
== Description ==


The function returns the index of the first atom that belongs to the
The function returns the index of the first atom that belongs to the

Latest revision as of 15:51, 12 August 2009

Synopsis

ifira(integer) = integer

Description

The function returns the index of the first atom that belongs to the residue with the given index, or the special value ifira(nr+1) = na+1.

This function is useful, for instance, to construct a loop over all atoms of a given residue, i:

 do j ifira(i) ifira(i+1)-1
   print "Atom $anam(j) of residue $rnam(i) $rnum(i)"
 end do