How can I change a plot based on the file name?

I want to plot some knee angles but I want to change the line style based on the file names.

An example of the file names would be:

BFND_W1. c3d

BFND_W1.plus3.c3d

BFND_W1.minus3.c3d

So for all fname's containing "plus", I want it to plot a "--" line and for all fname's containing "minus", I want to plot a ".." line.

I tried to use an if elseif code but just don't know how to code "if fname contains the word plus", "elseif fname contains minus".

Thanks in advance!!

Answer 1

[Geoff Hayes]

Alexis - depending upon your version of MATLAB, you can use use either strfind or contains to determine if a substring exists within your filename. For example, the code

filename = 'BFND_W1.minus3.c3d';
linestyle = '-';
if ~isempty(strfind(filename, 'plus'))
    linestyle = '--';
elseif ~isempty(strfind(filename, 'minus'))
    linestyle = '-.';
end

% plot your data with the chosen LineStyle
plot(1:10,1:10,'LineStyle',linestyle);

might do what you want.

[Geoff Hayes]

Alexis' answer moved here

Thanks! I'll give it a go