wolffd@0: function y = log(x)
wolffd@0: 
wolffd@0: d = get(x,'Data');
wolffd@0: e = cell(1,length(d));
wolffd@0: l = get(x,'Name');
wolffd@0: m = cell(1,length(l));
wolffd@0:     
wolffd@0: for i = 1:length(d)
wolffd@0:     e{i} = cell(1,length(d{i}));
wolffd@0:     for j = 1:length(d{i})
wolffd@0:         e{i}{j} = log(d{i}{j});
wolffd@0:     end
wolffd@0:     m{i} = ['log_' l{i}];
wolffd@0: end
wolffd@0: y = set(x,'Data',e,'Name',m);