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From: CELC da Cunha on 20 Jul 2010 12:10
Hello all,

I am pretty new to MatLab so i am pretty sure this must be an easy question - but i couldn't find it on the forum or on google.

I wrote a code that generates a graph for each given column of my matrix, each time i press '->' it moves to the next column. But now i want to add some extra functionality to it - i want to whenever i press the space bar (or anything in my keyboard) to have the original column copied into another matrix.

This way i would generate a 'selected matrix' out of a 'raw matrix'.

I guess the code should be something like this:

if spacebar.activate=true then column.copy
newmatrix.column.paste
else next

I just don't know how to put it into MatLab language.

Thanks :)
From: Sunny on 20 Jul 2010 13:43
Play around with the 'input' function. It prompts the user for a keyboard input, and depending on what key you choose, you can make a loop out of it.

i.e.
reply = input('Do you want more? Y/N [Y]: ', 's');
if isempty(reply)
reply = 'Y';
end

Cheers

"CELC da Cunha" <cadu.cunha(a)gmail.com> wrote in message <i24hpe$kgd$1(a)fred.mathworks.com>...
> Hello all,
>
> I am pretty new to MatLab so i am pretty sure this must be an easy question - but i couldn't find it on the forum or on google.
>
> I wrote a code that generates a graph for each given column of my matrix, each time i press '->' it moves to the next column. But now i want to add some extra functionality to it - i want to whenever i press the space bar (or anything in my keyboard) to have the original column copied into another matrix.
>
> This way i would generate a 'selected matrix' out of a 'raw matrix'.
>
> I guess the code should be something like this:
>
> if spacebar.activate=true then column.copy
> newmatrix.column.paste
> else next
>
> I just don't know how to put it into MatLab language.
>
> Thanks :)
From: CELC da Cunha on 20 Jul 2010 13:55
I will most certainly have a look at it closely - but i guess this input function only answers one part of my problems, am i correct?

I mean, if i got it correct, it prompts in case a given a thing is pressed - i want no prompt, but an action.

And that is not what i saw on the help file of this function :(
From: someone on 20 Jul 2010 13:57
"CELC da Cunha" <cadu.cunha(a)gmail.com> wrote in message <i24hpe$kgd$1(a)fred.mathworks.com>...
> Hello all,
>
> I am pretty new to MatLab so i am pretty sure this must be an easy question - but i couldn't find it on the forum or on google.
>
> I wrote a code that generates a graph for each given column of my matrix, each time i press '->' it moves to the next column. But now i want to add some extra functionality to it - i want to whenever i press the space bar (or anything in my keyboard) to have the original column copied into another matrix.
>
> This way i would generate a 'selected matrix' out of a 'raw matrix'.
>
> I guess the code should be something like this:
>
> if spacebar.activate=true then column.copy
> newmatrix.column.paste
> else next
>
> I just don't know how to put it into MatLab language.
>
> Thanks :)

If you generated a graph and want a GUI solution, look at the figure's KeyPressFcn property.
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