Hello,
According to http://matplotlib.sourceforge.net/api/
pyplot_api.html#matplotlib.pyplot.scatter , the keyword argument that
takes an array to specify the colors of the individual markers is c.
color is interpreted as a color to give to all markers at once.
The following works on my computer (matplotlib 0.99.0) :
import numpy as N
from matplotlib import pyplot as P
x = N.random.randn(100)
y = N.random.randn(100)
z = N.random.randn(100)**2
fig = P.figure()
ax = fig.add_subplot(1,1,1)
cmap = P.matplotlib.cm.jet
norm = P.matplotlib.colors.Normalize(vmin=0, vmax=1)
sc = ax.scatter(x,y,
c=z,
cmap=cmap,
norm=norm,
)
Le 10 déc. 09 à 14:44, Yannick Copin a écrit :
> Hi,
>
> according to the documentation, scatter should accept a 1D float
> array for
> color kwarg. Therefore, I thought the following code would work
> (and I think
> it worked at some point in the past; I'm currently using matplotlib
> 0.99.0):
>
> import numpy as N
> from matplotlib import pyplot as P
>
> x = N.random.randn(100)
> y = N.random.randn(100)
> z = N.random.randn(100)**2
>
> fig = P.figure()
> ax = fig.add_subplot(1,1,1)
>
> cmap = P.matplotlib.cm.jet
> norm = P.matplotlib.colors.Normalize(vmin=0, vmax=1)
>
> sc = ax.scatter(x,y,
> color=z,
> cmap=cmap,
> norm=norm,
> )
>
> But this crashes with the following error:
>
> [...]
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