Re: [Gnuplot-py-users] Resolution of Plots

[Richard B. L. <la...@un...>]

Thanks, Michael, but, sadly, that did not work.
-- Richard

On Monday, December 9, 2013,343, at 3:47 AM, Michael Haggerty wrote:

> On 12/08/2013 02:49 PM, Richard Langley wrote:
>> I have a file of x,y real data pairs with the values to 9 digits of
>> precision. When I use gnuplot to plot the data directly using, say:
>> plot 'HHAT3260.csv' using 2:1
>> I get a detailed plot with the values at their original precision.
>> However, when I use gnuplot within Python (having read in the file to
>> float lists x and y) using:
>> g = Gnuplot.Gnuplot(debug=1)
>> d = Gnuplot.Data(x, y, with_='points')
>> g.plot(d)
>> I get a plot with plotted values rounded or truncated to 7 digits of
>> precision, it seems. Is there a way to preserve the precision of the
>> data when using py-gnuplot?
> 
> Gnuplot.py's default is to treat data as 32-bit floating point numbers.
> But if you explicitly pass double-precision data to Gnuplot.Data(),
> then I think it will pass the data to gnuplot with the higher precision.
> I.e., do something like
> 
>    d = Gnuplot.Data(
>        numpy.array(x, dtype=numpy.float64),
>        numpy.array(y, dtype=numpy.float64),
>        with_='points',
>        )
> 
> Michael
> 
> -- 
> Michael Haggerty
> mh...@al...
> http://softwareswirl.blogspot.com/

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| Richard B. Langley                            E-mail: la...@un...         |
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