savefig specifies the DPI for the saved figure (The default is 100 if it’s not specified in your .matplotlibrc, have a look at the dpi kwarg to savefig). It doesn’t inheret it from the DPI of the original figure. The DPI affects the relative size of the text and width of the stroke on lines, etc. If you want … Read more
You have two pythons installed on your machine, one is the standard python that comes with Mac OSX and the second is the one you installed with ports (this is the one that has matplotlib installed in its library, the one that comes with macosx does not). Is the standard mac python and since it … Read more
Matplotlib chooses Xwindows backend by default. You need to set matplotlib to not use the Xwindows backend. Add this code to the start of your script (before importing pyplot) and try again: Or add to .config/matplotlib/matplotlibrc line backend: Agg to use non-interactive backend. Or when connect to server use ssh -X remoteMachine command to use … Read more
I am trying to merge arrays like this: If: Then the result should be: what I do is that extract histogram of array and merge it with normal array. and maybe that cause the error like this ValueError: operands could not be broadcast together with shapes (5,) (30,) please help me. I don’t know what … Read more
Matplotlib chooses Xwindows backend by default. You need to set matplotlib to not use the Xwindows backend. Add this code to the start of your script (before importing pyplot) and try again: Or add to .config/matplotlib/matplotlibrc line backend: Agg to use non-interactive backend. Or when connect to server use ssh -X remoteMachine command to use … Read more
Even though they are equivalent, I think there is a pretty good argument that the second form import matplotlib.pyplot as plt is objectively more readable: It is generally customary to use import matplotlib.pyplot as plt and suggested in the matplotlib documentation (see http://matplotlib.org/users/pyplot_tutorial.html etc…) so this will be more familiar to most readers. import matplotlib.pyplot … Read more
I think your code is trying to “divide by zero” or “divide by NaN”. If you are aware of that and don’t want it to bother you, then you can try: For more details see: http://docs.scipy.org/doc/numpy/reference/generated/numpy.seterr.html
figure tells you the call signature: figure(figsize=(1,1)) would create an inch-by-inch image, which would be 80-by-80 pixels unless you also give a different dpi argument.
The purpose of using plt.figure() is to create a figure object. The whole figure is regarded as the figure object. It is necessary to explicitly use plt.figure() when we want to tweak the size of the figure and when we want to add multiple Axes objects in a single figure. Parts of a Figure
You have two pythons installed on your machine, one is the standard python that comes with Mac OSX and the second is the one you installed with ports (this is the one that has matplotlib installed in its library, the one that comes with macosx does not). Is the standard mac python and since it … Read more