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| author | melissawm <melissawm@gmail.com> | 2022-07-15 15:08:32 -0300 |
|---|---|---|
| committer | melissawm <melissawm.github@gmail.com> | 2022-10-03 21:15:41 -0300 |
| commit | 5c427d6a597f62352e9baf870e1b2edde58bee45 (patch) | |
| tree | 6643c88bbeb22f04f866fdb65deda4de00a797f2 /numpy/lib | |
| parent | 105e2635324718ccc964cfda68a805a0035ffe6d (diff) | |
| download | numpy-5c427d6a597f62352e9baf870e1b2edde58bee45.tar.gz | |
DOC: How to partition domains
Diffstat (limited to 'numpy/lib')
| -rw-r--r-- | numpy/lib/function_base.py | 18 | ||||
| -rw-r--r-- | numpy/lib/index_tricks.py | 2 |
2 files changed, 15 insertions, 5 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py index a0c94114a..1a840669c 100644 --- a/numpy/lib/function_base.py +++ b/numpy/lib/function_base.py @@ -4956,16 +4956,25 @@ def meshgrid(*xi, copy=True, sparse=False, indexing='xy'): >>> yv array([[0., 0., 0.], [1., 1., 1.]]) - >>> xv, yv = np.meshgrid(x, y, sparse=True) # make sparse output arrays + + The result of `meshgrid` is a coordinate grid: + + >>> import matplotlib.pyplot as plt + >>> plt.plot(xv, yv, marker='o', color='k', linestyle='none') + >>> plt.show() + + You can create sparse output arrays to save memory and computation time. + + >>> xv, yv = np.meshgrid(x, y, sparse=True) >>> xv array([[0. , 0.5, 1. ]]) >>> yv array([[0.], [1.]]) - `meshgrid` is very useful to evaluate functions on a grid. If the - function depends on all coordinates, you can use the parameter - ``sparse=True`` to save memory and computation time. + `meshgrid` is very useful to evaluate functions on a grid. If the + function depends on all coordinates, both dense and sparse outputs can be + used. >>> x = np.linspace(-5, 5, 101) >>> y = np.linspace(-5, 5, 101) @@ -4982,7 +4991,6 @@ def meshgrid(*xi, copy=True, sparse=False, indexing='xy'): >>> np.array_equal(zz, zs) True - >>> import matplotlib.pyplot as plt >>> h = plt.contourf(x, y, zs) >>> plt.axis('scaled') >>> plt.colorbar() diff --git a/numpy/lib/index_tricks.py b/numpy/lib/index_tricks.py index 4f414925d..e74553de4 100644 --- a/numpy/lib/index_tricks.py +++ b/numpy/lib/index_tricks.py @@ -232,6 +232,7 @@ class MGridClass(nd_grid): -------- lib.index_tricks.nd_grid : class of `ogrid` and `mgrid` objects ogrid : like mgrid but returns open (not fleshed out) mesh grids + meshgrid: return coordinate matrices from coordinate vectors r_ : array concatenator Examples @@ -283,6 +284,7 @@ class OGridClass(nd_grid): -------- np.lib.index_tricks.nd_grid : class of `ogrid` and `mgrid` objects mgrid : like `ogrid` but returns dense (or fleshed out) mesh grids + meshgrid: return coordinate matrices from coordinate vectors r_ : array concatenator Examples |