np where
where（condition[,x,y]） 用於從數組中找出符合條件的元素。注意，不能是list返回的是符合條件的元素下標組成的數組。對於一維數組，返回的是一個一維的下標索引數組。二維數組則返回二維下標數組eg : a = np.arange(5) np., 【参考资料】： 1、首先就是官网的资料：点击打开链接2、这个博客介绍的也还可以：点击打开链接【numpy.where】：关于其的用法可以参考：点击打开链接numpy.where(condition[, x, y]) 这里x,y是可选参数，condition是条件，这三个输入参数都是array_like的形式；而且三者的维度相同当conditon的某个位置的为true.
| 相關軟體 Python 資訊 | |
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 np where 相關參考資料
How does python numpy.where() work? - Stack Overflow
How do they achieve internally that you are able to pass something like x > 5 into a method? The short answer is that they don't. Any sort of logical operation on a numpy array returns a boole... https://stackoverflow.com numpy where(condition「,x,y」）的用法- 每日頭條
where（condition[,x,y]） 用於從數組中找出符合條件的元素。注意，不能是list返回的是符合條件的元素下標組成的數組。對於一維數組，返回的是一個一維的下標索引數組。二維數組則返回二維下標數組eg : a = np.arange(5) np. https://kknews.cc numpy 之np.where - CSDN博客
【参考资料】： 1、首先就是官网的资料：点击打开链接2、这个博客介绍的也还可以：点击打开链接【numpy.where】：关于其的用法可以参考：点击打开链接numpy.where(condition[, x, y]) 这里x,y是可选参数，condition是条件，这三个输入参数都是array_like的形式；而且三者的维度相同当conditon的某个位置的为true. https://blog.csdn.net numpy.where — NumPy v1.10 Manual
If both x and y are specified, the output array contains elements of x where condition is True, and elements from y elsewhere. If only condition is given, return the tuple condition.nonzero(), the ind... https://docs.scipy.org numpy.where — NumPy v1.12 Manual
If both x and y are specified, the output array contains elements of x where condition is True, and elements from y elsewhere. If only condition is given, return the tuple condition.nonzero(), the ind... https://docs.scipy.org numpy.where — NumPy v1.13.dev0 Manual
If both x and y are specified, the output array contains elements of x where condition is True, and elements from y elsewhere. If only condition is given, return the tuple condition.nonzero(), the ind... https://docs.scipy.org numpy.where — NumPy v1.14 Manual
If both x and y are specified, the output array contains elements of x where condition is True, and elements from y elsewhere. If only condition is given, return the tuple condition.nonzero() , the in... https://docs.scipy.org python - numpy.where() detailed, step-by-step explanation ...
After fiddling around for a while, I figured things out, and am posting them here hoping it will help others. Intuitively, np.where is like asking "tell me where in this array, entries satisfy a ... https://stackoverflow.com Python vs Matlab—— find 与np.where - CSDN博客
matlab中强大的用途广泛的find函数，对应于python中的哪一内置函数？它们的区别和联系是什么？ https://blog.csdn.net Python中numpy的where()函数 - 勤快学
import numpy as np ''' x = np.random.randn(4,4) print(np.where(x>0,2,-2)) #试试效果xarr = np.array([1.1,1.2,1.3,1.4,1.5]) yarr = np.array([2.1,2.2,2.3,2.4,2.5]) zarr = np.array([True,False... http://qkxue.net |