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From: tz on 23 Feb 2010 07:27
Hi,
I'm trying to build a function that will load a file, according to a filename given by the user calling the function. Meaning, the function should look something like this (as far as I understand):

(function name: getFile)

function [output]= getFile('fileName')
load 'fileName'

(Output is in a further stage, after loading the file)

This form does not work any ideas on how to do this?
What should I do?
From: Rune Allnor on 23 Feb 2010 08:01
On 23 Feb, 13:27, "tz " <tzach.au...(a)gmail.com> wrote:
> Hi,
> I'm trying to build a function that will load a file, according to a filename given by the user calling the function. Meaning, the function should look something like this (as far as I understand):
>
> (function name: getFile)
>
>       function [output]= getFile('fileName')
>       load 'fileName'
>
> (Output is in a further stage, after loading the file)
>
> This form does not work any ideas on how to do this?
> What should I do?

Use the function form of LOAD:

function [output]= getFile('fileName')
output = load('fileName')

Rune
From: tz on 23 Feb 2010 08:14
I didn't think of that...
Ill give it a try!

Thanks!
From: Steven Lord on 23 Feb 2010 09:56

"tz " <tzach.auman(a)gmail.com> wrote in message
news:hm0hin$gln$1(a)fred.mathworks.com...
> Hi,
> I'm trying to build a function that will load a file, according to a
> filename given by the user calling the function. Meaning, the function
> should look something like this (as far as I understand):
> (function name: getFile)
>
> function [output]= getFile('fileName')
> load 'fileName'
>
> (Output is in a further stage, after loading the file)
>
> This form does not work any ideas on how to do this?
> What should I do?

As Rune said, use the functional form -- but you need to change your
function declaration line a little bit. The input argument specified in the
function declaration cannot be a string or an expression; it MUST be the
name of a variable. [Now when you _call_ the function, you can call it with
whatever you want as the input -- string, expression, whatever.] In
addition, when using the functional form, these two commands are quite
different:

load('fileName')
load(fileName)

The former attempts to load the file whose name is either fileName or
fileName.mat -- the latter attempts to load in the file whose name is stored
in the variable fileName.


function output = getFile(fileName)
S = load(fileName);


--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ


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