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other:python:matplotlib_by_jyp [2022/07/05 14:54] jypeter |
other:python:matplotlib_by_jyp [2023/09/27 12:08] jypeter [Working with matplotlib (JYP version)] Added link to pdf cheatsheets |
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====== Working with matplotlib (JYP version) ====== | ====== Working with matplotlib (JYP version) ====== | ||
- | <note tip>Note: [[https://matplotlib.org/cheatsheets/|Matplotlib cheatsheets]]</note> | + | <note tip>Note: [[https://matplotlib.org/cheatsheets/|Matplotlib cheatsheets]] |
+ | |||
+ | \\ The [[https://github.com/matplotlib/cheatsheets#cheatsheets-for-matplotlib-users|pdf version of the cheatsheets]] is available on the github page</note> | ||
**Summary**: there are lots of python libraries that you can use for plotting, but Matplotlib has become a //de facto// standard | **Summary**: there are lots of python libraries that you can use for plotting, but Matplotlib has become a //de facto// standard | ||
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* The ''plot'' function will be faster for scatterplots where markers don't vary in size or color | * The ''plot'' function will be faster for scatterplots where markers don't vary in size or color | ||
* [[https://matplotlib.org/api/_as_gen/matplotlib.axes.Axes.contourf.html|contour(...) and contourf(...)]]: draw contour lines and filled contours | * [[https://matplotlib.org/api/_as_gen/matplotlib.axes.Axes.contourf.html|contour(...) and contourf(...)]]: draw contour lines and filled contours | ||
- | * **X and Y axes parameters** (see also [[https://matplotlib.org/examples/showcase/anatomy.html|Anatomy of a figure]]): | + | * **X and Y axes parameters** (see also [[https://matplotlib.org/stable/gallery/showcase/anatomy.html|Anatomy of a figure]]): |
* **Axis range**: ''my_plot.set_xlim(x_leftmost_value, x_rightmost_value)'' | * **Axis range**: ''my_plot.set_xlim(x_leftmost_value, x_rightmost_value)'' | ||
* Use the leftmost and rightmost values to specify the orientation of the axis (i.e the rightmost value can be smaller than the leftmost) | * Use the leftmost and rightmost values to specify the orientation of the axis (i.e the rightmost value can be smaller than the leftmost) | ||
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* ''my_cmap.set_over(color='k')'': color to be used for //high out-of-range values// **if** ''extend'' is specified and is //'both'// or //'max'//. Default color is ''my_cmap(my_cmap.N - 1)'' | * ''my_cmap.set_over(color='k')'': color to be used for //high out-of-range values// **if** ''extend'' is specified and is //'both'// or //'max'//. Default color is ''my_cmap(my_cmap.N - 1)'' | ||
* ''my_cmap.set_under(color='k')'': color to be used for //low out-of-range values// **if** ''extend'' is specified and is //'both'// or //'min'//. Default color is ''my_cmap(0)'' | * ''my_cmap.set_under(color='k')'': color to be used for //low out-of-range values// **if** ''extend'' is specified and is //'both'// or //'min'//. Default color is ''my_cmap(0)'' | ||
- | * [[https://matplotlib.org/stable/api/figure_api.html#matplotlib.figure.Figure.colorbar|colorbar]] | + | * [[https://matplotlib.org/stable/api/figure_api.html#matplotlib.figure.Figure.colorbar|colorbar]] (see also the [[https://matplotlib.org/stable/api/colorbar_api.html|colorbar api]]) |
* [[https://matplotlib.org/stable/gallery/subplots_axes_and_figures/colorbar_placement.html|Placing colorbars demo]] | * [[https://matplotlib.org/stable/gallery/subplots_axes_and_figures/colorbar_placement.html|Placing colorbars demo]] | ||
* [[https://matplotlib.org/stable/gallery/images_contours_and_fields/contourf_demo.html|contourf + colorbar demo]] | * [[https://matplotlib.org/stable/gallery/images_contours_and_fields/contourf_demo.html|contourf + colorbar demo]] |