Use of Evalin

4 views (last 30 days)
Karthik KJ
Karthik KJ on 24 Apr 2012
for i=1:str2num(get(handles.nosensorentry_tag,'string'))
set(handles.sensname(i),'string',evalin('base','SensorList.sensorname(i,1)'))
end
I am not able to use loop to get the workspace variable with evalin. Matlab is showing
Error using ==> evalin
Subscript indices must either be real positive integers or logicals.
Is there any way to increment 'i' in evalin statement.

Accepted Answer

Walter Roberson
Walter Roberson on 24 Apr 2012
names = evalin('base', 'SensorList.sensorname');
for i = 1:str2num(get(handles.nosensorentry_tag,'string'))
set(handles.sensname(i), 'String', names(i,1));
end

More Answers (2)

Daniel Shub
Daniel Shub on 25 Apr 2012
You need to evaulate the i in the current workspace and not the base:
for i=1:str2num(get(handles.nosensorentry_tag,'string'))
set(handles.sensname(i),'string',evalin('base', ...
['SensorList.sensorname(', num2str(i), ',1)']))
end

Jan
Jan on 25 Apr 2012
n = str2num(get(handles.nosensorentry_tag,'string'))
for i = 1:n
set(handles.sensname(i), 'string', SensorList.(sensorname{i}));
end
  1 Comment
Walter Roberson
Walter Roberson on 25 Apr 2012
I believe the idea is that SensorList is defined in the base workspace but not the current workspace.

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