Examples of numpy array splicing, merging rows and columns respectively

This article mainly introduces examples of array splicing in numpy, merging rows and columns respectively. It has a certain reference value. Now I share it with you. Friends in need can refer to it

When performing data analysis, will some sample data with multiple characteristics be spliced ​​and merged, analyzed together, and predicted....

The following is an array using functions in numpy of splicing.

(1) Method one. np.vstack() v means vertical, that is, vertical splicing and np.hstack() h means Horizontal

(2) Method 2, np.c_[array1,array2] c_represents the column column np.r_[array1,array2] r_represents the row row

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