hi,
I'm trying to create a matrix of 8X12 by the code below but I get a matrix of 12X12.
does anyone understands where is my mistake?

genes_val=zeros(8,12)
    val_ind=1
for j=1:12;
   for i=1:8;
        genes_vals(i,j)=mean_qty(val_ind)
        val_ind=val_ind+1
    end
end
 
Thanks!

"pixel" wrote in message <ihts5v$8vq$1@fred.mathworks.com>...
> hi,
> I'm trying to create a matrix of 8X12 by the code below but I get a matrix of 12X12.
> does anyone understands where is my mistake?
> 
> genes_val=zeros(8,12)
>     val_ind=1
> for j=1:12;
>    for i=1:8;
>         genes_vals(i,j)=mean_qty(val_ind)
>         val_ind=val_ind+1
>     end
> end
>  
> Thanks!

it's working just fine  
genes_vals is 8X12

you also don't need the ; in the for line, for j=1:12; is the same as for j=1:12

"Paulo Silva" wrote in message <ihtt7o$85t$1@fred.mathworks.com>...
> "pixel" wrote in message <ihts5v$8vq$1@fred.mathworks.com>...
> > hi,
> > I'm trying to create a matrix of 8X12 by the code below but I get a matrix of 12X12.
> > does anyone understands where is my mistake?
> > 
> > genes_val=zeros(8,12)
> >     val_ind=1
> > for j=1:12;
> >    for i=1:8;
> >         genes_vals(i,j)=mean_qty(val_ind)
> >         val_ind=val_ind+1
> >     end
> > end
> >  
> > Thanks!
> 
> it's working just fine  
> genes_vals is 8X12
> 
> you also don't need the ; in the for line, for j=1:12; is the same as for j=1:12

Instead you might want to add ; in the end of all other lines.
I found no mistakes in the code, assuming you really want 8 x 12 matrix.
More "MATLAB-type" code producing the same result could be:
genes_val=zeros(8,12);
genes_val(:) = mean_qty;
or
genes_val=reshape(mean_qty,8,12);

On 28/01/11 5:00 AM, Pekka Kumpulainen wrote:
> "Paulo Silva" wrote in message <ihtt7o$85t$1@fred.mathworks.com>...
>> "pixel" wrote in message <ihts5v$8vq$1@fred.mathworks.com>...
>> > hi,
>> > I'm trying to create a matrix of 8X12 by the code below but I get a
>> matrix of 12X12.
>> > does anyone understands where is my mistake?
>> > > genes_val=zeros(8,12)
>> > val_ind=1
>> > for j=1:12;
>> > for i=1:8;
>> > genes_vals(i,j)=mean_qty(val_ind)
>> > val_ind=val_ind+1
>> > end
>> > end
>> > > Thanks!
>>
>> it's working just fine genes_vals is 8X12
>>
>> you also don't need the ; in the for line, for j=1:12; is the same as
>> for j=1:12
>
> Instead you might want to add ; in the end of all other lines.
> I found no mistakes in the code, assuming you really want 8 x 12 matrix.
> More "MATLAB-type" code producing the same result could be:
> genes_val=zeros(8,12);
> genes_val(:) = mean_qty;
> or
> genes_val=reshape(mean_qty,8,12);

In order to be equivalent to the original code, mean_qty would have to 
be an array or a vectorized function, and the references to mean_qty 
would have to be changed to mean_qty(1:8*12)