Comparing contents of structures

2 views (last 30 days)
Jared
Jared on 23 Jan 2013
A little background info: in a Matlab GUI, I load the files from a directory into a listbox. I have a structure with 8 possible file names and the "display name" that each filename maps to. This display name is what is populated in the listbox.
label{1,1}=file1.csv
label{1,2}=Display 1
label{2,1}=file2.csv
label{2,2}=Display 2
With the following code, I am trying to determine which files are selected, determine the actual file name, and load the files into an originally empty data structure.
data{1,8}={};
for i=1:length(index_selected)
for j=1:8 %8 possible files
if strcmp(handles.list_names{index_selected(i)},labels{j,2})==1
if isempty(data{j})==1
fid=fopen(labels{j,1});
data{j}=textscan(fid,'%s%s%u%f%f%f%f%u','Delimiter',',',...
'HeaderLines',1);
fclose(fid);
end
end
end
end
I know strcmp isn't going to work as I have it, but it illustrated what I'm going for. The main thing I am struggling with is how to get a string of the display name of a selected index.

Accepted Answer

Cedric
Cedric on 23 Jan 2013
Edited: Cedric on 23 Jan 2013
Not sure that I fully understand (it's late), but note that strcmp() and strcmpi() do work on cell arrays. I illustrate that with a basic example:
NL = {'file1.csv', 'Label 1'; ... % Names and labels
'file2.csv', 'Label 2'; ...
'file3.csv', 'Label 3'} ;
selected = {'Label 1', 'Label 3'} ;
for ii = 1 : numel(selected)
match = strcmp(selected{ii}, NL(:,2)) ;
fprintf( 'Filename for "%s": %s.\n', selected{ii}, NL{match,1}) ;
end
Cheers,
Cedric

More Answers (1)

Image Analyst
Image Analyst on 23 Jan 2013
Have you considered using ismember()?
  1 Comment
Jared
Jared on 23 Jan 2013
I have not. It looks like it might do what I need.

Sign in to comment.

Categories

Find more on Environment and Settings in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!