PRTools Contents

PRTools User Guide



Get fields of object descriptors


 A Dataset
 FIELD Character string: name of structure field of IDENT field of A.
 L Vector of indices pointing to desired objects in A,  default: all.

 IDENTFIELD Cell array of size (L,1) containing the requested field of the  objects A(L,:).
  If FIELD is the empty string ('') the entire ident structure is returned.  If the requested field does not exist IDENTFIELD = [];

Note the ident field of datasets was originally intended for an  identification of the individual objects. Later its usage was extended  to a field for storing general information on objects. For that reason 'old'  datasets without a structure in the ident field are transformed such that  this information is stored in a subfield IDENT in the ident field. It can  be retrieved by GETIDENT(A) or GETIDENT(A,J).

IDENTFIELD is a cell array as arbitrary parameters may be stored. If  these are doubles, e.g. after A = SETIDENT(A,[1:SIZE(A,1)]'), they can  be easily converted by N = CELL2MAT(GETIDENT(A));

For backward compatibility the following holds: If FIELD = 'string'  then IDENTFIELD contains a character array of the object identifiers stored  in A.IDENT.IDENT. If these are integers they are converted to strings.

PRTools Contents

PRTools User Guide

This file has been automatically generated. If badly readable, use the help-command in Matlab.