Plot signal from list of data in MATLAB

[kay310]

I want to load a .mat file which contain 500 column of data in it and plot the signal out through the GUI using .m file.
Can anyone help me on the code?

 

[Feldoh]

So you have a set of y-data of 300. Make an x vector of size 300 that goes from 0 to 300 and then plot(x,y);

 

[kay310]

I'm now actually unable to load the .mat file using 'load' command.
I doing this way in m-file:

load filename;
[x,y] = size(filename);
t = 1:y;
plot(t, filename);

%the filename is in .mat format

 

[kay310]

can anyone help me in load a .m file and plot the signal out?

using this way:
[Filename, PathName] = uigetfile('*.m','Select the M-file');