[scilab-Users] plot efficiency

[Peng Du]

Hi Mathieu,

Yes I think you are right. So I think I need to improve the way that data is
read because simply changing the stacksize won't solve the problem
fundamentally.

And talking about matrix, is the effect of using a 16*n matrix the same with
using 16 1*n arrays? How can I change my program so it requires smaller
stacksize and probably runs faster?

Thanks.

Peng

On 24 October 2010 20:58, Mathieu Dubois <mathieu.dubois at limsi.fr> wrote:

> Hi Peng
>
> Le 24/10/2010 21:12, Peng Du a écrit :
>
>  Hi everyone.
>>
>> I have a question about how to plot efficiently.
>>
>> My scilab program reads data from a file containing 16 columns. Each
>> column represents the data for a polyline. So what I have been doing so
>> far is to build 16 separate arrays and plot them in one graph. However
>> as the size of the file grows, sometimes up to several GBs, it started
>> to take a very long time to finish and finally I got the error message
>> of exceeded stack size. Does anyone know how I can work around this?
>>
> I don't think that problem comes from plot but rather from your data
> reading function.
>
> To increase the stack size, you can use stacksize (see help("stacksize")).
>
> By the way if you call plot2d with a matrix it will plot a polyline for
> each column on the same graph.
>
> HTH,
> Mathieu
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20101024/2af95f44/attachment.htm>