How to point to actual file for LISTDLG selection?

Hi,

I have a list of .mat files and only one to be selected at one time. I used listdlg to select the file each time.

fd = dir('*.mat');
fn = {fd.name};
[indx,tf]  = listdlg('PromptString',{'Select a file.',...
    'Only one file can be selected at a time.',''},...
    'SelectionMode','single','ListString',fn);

The above code only up to selection point.

However, when i select the required file, and using this code;

xsel = fn(indx);

xsel returned at 1x1 cell instead the actual file in .mat.

How to point the xsel to actual .mat file in directory ?

.mat file consists acceleration data (120000x1) double

Answer 1

[Rik]

You selected a file name. Now you need to use the load function to read the variables.

S=load(fn{indx});

[amh]

using load command produced output in structure data form. Then i used struct2array to return it to double form.

x = load(fn{indx});

xsel = struct2array(x);

[amh]

Thanks for reply.

[Rik]

You're welcome, but you don't actually need struct2array, you can simply index the field of the struct.

So if the variable in the mat file is called acceleration, you can use xsel = x.acceleration;