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## Re: counting totals in square grids (meshgrid)

**From**: |
Jaroslav Hajek |

**Subject**: |
Re: counting totals in square grids (meshgrid) |

**Date**: |
Mon, 14 Dec 2009 10:40:05 +0100 |

On Mon, Dec 14, 2009 at 10:30 AM, Isak Delberth Davids
<address@hidden> wrote:
>* Yes --- thanks I could not expressed it better --- thats what I want.*
>* Indeed, x=0 and x<1 is tautology, I should have written x>=0 and x<1.*
>* I can now do this:*
>
>* for i = 1:n*
>* for j = 1:n*
>* grid(i,j) = sum (i-1 <= x & x < i & j-1 <= y & y < j)*
>* end*
>* end*
>
OK. There are ways to do this operation more efficiently, but let's
put that off for now. I suggest you add a semicolon to the assignment
in order to suppress output at each iteration.
>* Now, how will I extract the total x values in a given grid? I fail to*
>* get the index k into the picture!*
>
Sorry, I don't understand what you're asking. I'm a mathematician, not
a magician (sigh), so you'll either need to formulate your questions
precisely, or wait for someone with more telepathic capabilities.
--
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz

**counting totals in square grids (meshgrid)**, *Isak Delberth Davids*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Jaroslav Hajek*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Isak Delberth Davids*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Jaroslav Hajek*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Isak Delberth Davids*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Jaroslav Hajek*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Isak Delberth Davids*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**,
*Jaroslav Hajek* **<=**
**Re: counting totals in square grids (meshgrid)**, *Isak Delberth Davids*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Jaroslav Hajek*, `2009/12/14`
**Re: counting totals in square grids (meshgrid)**, *Isak Delberth Davids*, `2009/12/14`