Re: Octave plotting x axis precision

[Marco Atzeri]

On 18/03/2016 11:03, wangboyuan wrote:
> Hi,
>
> I wonder how can I increase the precision of the x/y axis when I am plotting
> the graph.
>
> I have initialised the >>option long
> and I have a data set for example:
>
> x(1:3)
> ans =
>
>     736330.576631944
>     736330.576643519
>     736330.576655093
>
>   y(1:3)
> ans =
>
>    -62
>    -63
>    -62
>
> and when I do plot(x(1:3),y(1,3)), i can only see a straight vertical line
> between -62 and -63, it seems like that the x axis doesnt have enough
> decimal places to recognise the changes.

it is a know limitation of fltk that uses only single precision.
Try using gnuplot as graphics or rescale the numbers to plot