Re: [Matplotlib-users] [matplotlib-users] Using variables in annotations
Manuel Wittchen skrev:
> Is it possible to print the value of a variable in an annotation?
> Example:
>
> gradient = 2.0
> intercept = 3.0
> r-value = 0.99
>
> ax.annotate('f(x) = gradient * x + intercept R^2 = r-value',
> xy=(2.9,-0.75), xytext=(2.9,-0.75))
>
I feel that a main advantage of matplotlib (over other solutions I have
used) is that there is a complete programming language available. In
this case, just use the standard string handling of python.
See e.g. http://docs.python.org/library/stdtypes.html#string-formatting
Untested code:
annotation_string = "f(x) = %f * x + %f R^2 = %f" % (gradient,
intercept, r-value)
ax.annotate(annotation_string,
xy=(2.9,-0.75), xytext=(2.9,-0.75))
/ johan
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Re: [Matplotlib-users] Problem generating postscript
Eric Emsellem writes: > regarding my last post, I still have pb generating simple eps files. Can you be more specific about the "last post" you are referring to? I searched using Gmane and didn't find anything recent: http://search.gmane.org/?author=eric+emsellem&group=gmane.comp.python.matplotlib.general&sort=date > thanks a lot for the quick tip. But no xpdf does not do it (I had > tried it). What exact error message do you get in that case? > ps.usedistiller : None > ## I tried all possible distiller... didn't change the pb. Certainly the error message must have changed between runs, since your first post showed a Ghostscript-specific message. -- Jouni K. Seppänen http://www.iki.fi/jks -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] [matplotlib-users] Using variables in annotations
Hi,
Is it possible to print the value of a variable in an annotation?
Example:
gradient = 2.0
intercept = 3.0
r-value = 0.99
ax.annotate('f(x) = gradient * x + intercept R^2 = r-value',
xy=(2.9,-0.75), xytext=(2.9,-0.75))
Where gradient, intercept and r-value should be replaced by the value
of the variables in the output.
Regards and a happy new year!
Manuel Wittchen
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