use cell2mat since cell2str does not exist

code/classes/SCDclass_algo.m

@@ -263,7 +263,7 @@ classdef SCDclass_algo
                   nout = numel(targetnames);
                   
                   fprintf('Calling init function ''%s'', assigning its output to ''%s'' ...\n',...
-                    char(initfunction),cell2str(targetnames));
+                    char(initfunction),cell2mat(targetnames));
 
                   if ischar(initfunction)
                     initcmd=sprintf('%s(obj);', initfunction);