Oi geeks. Anyone know MATLAB?

[yorkie_chris]

Originally Posted by matlab

clear
%clear the history
gridsize = menu ('what size matrix would you like?','10 by 10','40 by 40','80 by 80','custom size');
%ask user what size grid
if gridsize == 1
x=10;
y=10;
elseif gridsize == 2
x=40;
y=40;
elseif gridsize == 3
x=80;
y=80;
elseif gridsize == 4
%ask for custom size game
prompt={'Enter in the x dimension','Enter in the y dimension'};
%name of the query
name='Custom game size';
%lines
numlines=1;
%the default setting
defaultanswer={'20','20'};
%creates the box. input stored to matrix X
X=inputdlg(prompt,name,numlines,defaultanswer);
%split matrix X into seperate variables x and y to create grid with
end
x =X(1,1)
y =X(2,1)

select = menu ('Random starting condition or input .lif file?','Randomise','Load file');
if select == 1
A= randint(x,y);
elseif select == 2
[filename, pathname] = uigetfile('*.*', 'Pick any file')

end

Trying to form random binary matrix A.

Brings up the menus and stuff fine, works fine with the preset sizes 10x10 40x40 etc. BUT if you select a custom matrix size it throws up

??? Error using ==> randint at 60
Only numeric arguments are accepted.

Error in ==> GOL at 64
A= randint(X);

And it's starting to annoy. It will do this even if you set the custom size to the same as a preset one.
Checking on the main command menu shows that x and y are set to integers from the X matrix as they're supposed to be. What the b*ll*cky-f*** is wrong with it?

Gah!

[flymo]

Chris, not familiar with this particular product but...

The section of code you have that does
x =X(1,1)
y =X(2,1)

is setting the x and y variables to non-integer values just before the section that uses the radint function. What does this function do?

inputdlg() reads strings, not numbers...

Use str2num().

[yorkie_chris]

Don't have the program here, so apologies if this is painfully obvious. (and generic apologies for the n00b questions!)

So I would swap the inputdlg for str2num? Or use str2num to extract the numbers from the inputdlg results?

Also I don't understand why if you check back on the main screen, it has set x and y to integers. Or so it appears. But I will have a look when I get home.

Originally Posted by flymo

Chris, not familiar with this particular product but...

The section of code you have that does
x =X(1,1)
y =X(2,1)

is setting the x and y variables to non-integer values just before the section that uses the radint function. What does this function do?

set x to row 1 column 1 of matrix X
set y to row 2 column 1 of matrix X

Originally Posted by yorkie_chris

So I would swap the inputdlg for str2num? Or use str2num to extract the numbers from the inputdlg results?

Also I don't understand why if you check back on the main screen, it has set x and y to integers. Or so it appears. But I will have a look when I get home.

MATLAB is a funny old language.

use inputdlg() to read keyboard input, then pass that through str2num() before using in the matrix (or in the x=X(1,1) statement... eg, x=str2num(X(1,1)).) ... Probably neater doing it seperately though.

And the main screen shows what it does because it's frankly, pretty random, and attempts class cast conversions where it sees fit.

Always did hate MATLAB... But if you're seriously stuck, I know a few folks studying engineering & the likes that use it regular. In fact, one of the lads sat next to me right now does...

[yorkie_chris]

Right what's his phone number and how many gallons of ale is it going to cost me

Bit of background, it's coursework for my engineering course, needing to do conways game of life program with some GUI stuff.

[flymo]

very similar to vbscript this, most of the time it guesses data type correctly but occasionally gets its knickers in a twist.

Originally Posted by yorkie_chris

Right what's his phone number and how many gallons of ale is it going to cost me

The lad working today knows more MATLAB than I do, but he's still not fantastic TBH.

Another one of the lads will be in work in a couple of hours. He's done more MATLAB than the other guy, and if he's up to some beer money (won't be much) I'll drop you a PM with his contact details.

[yorkie_chris]

That bit now works. Cheers Baph.

Next bit now. Woop.