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add column_stack and row_stack functions

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This commit is contained in:
wyq 2023-07-31 16:12:53 +08:00
parent c16a807b40
commit 86850747f1
3 changed files with 54 additions and 8 deletions
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10
meteoinfo-lab/milconfig.xml
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@ -1,7 +1,6 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<MeteoInfo File="milconfig.xml" Type="configurefile">
<Path OpenPath="D:\Working\MIScript\Jython\mis\satellite\gpm">
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\array"/>
<Path OpenPath="D:\Working\MIScript\Jython\mis\array">
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\array\complex"/>
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\traj"/>
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\map"/>
@ -16,21 +15,20 @@
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\satellite\cloudsat"/>
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\satellite"/>
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\satellite\gpm"/>
<RecentFolder Folder="D:\Working\MIScript\Jython\mis\array"/>
</Path>
<File>
<OpenedFiles>
<OpenedFile File="D:\MyProgram\java\MeteoInfoDev\toolbox\meteoview3d\_reload.py"/>
<OpenedFile File="D:\MyProgram\java\MeteoInfoDev\toolbox\meteoview3d\mainGUI.py"/>
<OpenedFile File="D:\Working\MIScript\Jython\mis\io\radar\radar_bin_proj.py"/>
<OpenedFile File="D:\Working\MIScript\Jython\mis\satellite\cloudsat\CloudSAT_Swath.py"/>
<OpenedFile File="D:\Working\MIScript\Jython\mis\satellite\gpm\GPM_DPRGMI_3d.py"/>
<OpenedFile File="D:\Working\MIScript\Jython\mis\satellite\gpm\GPM_DPRGMI_cross.py"/>
</OpenedFiles>
<RecentFiles>
<RecentFile File="D:\MyProgram\java\MeteoInfoDev\toolbox\meteoview3d\_reload.py"/>
<RecentFile File="D:\MyProgram\java\MeteoInfoDev\toolbox\meteoview3d\mainGUI.py"/>
<RecentFile File="D:\Working\MIScript\Jython\mis\io\radar\radar_bin_proj.py"/>
<RecentFile File="D:\Working\MIScript\Jython\mis\satellite\cloudsat\CloudSAT_Swath.py"/>
<RecentFile File="D:\Working\MIScript\Jython\mis\satellite\gpm\GPM_DPRGMI_3d.py"/>
<RecentFile File="D:\Working\MIScript\Jython\mis\satellite\gpm\GPM_DPRGMI_cross.py"/>
</RecentFiles>
</File>
<Font>

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meteoinfo-lab/pylib/mipylib/numeric/lib/shape_base$py.class
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52
meteoinfo-lab/pylib/mipylib/numeric/lib/shape_base.py
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@ -1,7 +1,9 @@
from ..core import numeric as _nx
from ..core.numeric import asanyarray, normalize_axis_tuple
from ..core import vstack
__all__ = [
'expand_dims'
'expand_dims','column_stack','row_stack'
]
def expand_dims(a, axis):
@ -73,4 +75,50 @@ def expand_dims(a, axis):
shape_it = iter(a.shape)
shape = [1 if ax in axis else next(shape_it) for ax in range(out_ndim)]
return a.reshape(shape)
return a.reshape(shape)
row_stack = vstack
def column_stack(tup):
"""
Stack 1-D arrays as columns into a 2-D array.
Take a sequence of 1-D arrays and stack them as columns
to make a single 2-D array. 2-D arrays are stacked as-is,
just like with `hstack`. 1-D arrays are turned into 2-D columns
first.
Parameters
----------
tup : sequence of 1-D or 2-D arrays.
Arrays to stack. All of them must have the same first dimension.
Returns
-------
stacked : 2-D array
The array formed by stacking the given arrays.
See Also
--------
stack, hstack, vstack, concatenate
Examples
--------
>>> a = np.array((1,2,3))
>>> b = np.array((2,3,4))
>>> np.column_stack((a,b))
array([[1, 2],
[2, 3],
[3, 4]])
"""
arrays = []
for v in tup:
arr = asanyarray(v)
if arr.ndim < 2:
n = arr.shape[0]
arr = arr.reshape(n, 1)
arrays.append(arr)
return _nx.concatenate(arrays, 1)