原文:numpy的scale就是 x-mean/std

...

2017-07-29 17:17 0 1388 推薦指數:

查看詳情

numpy中的mean()函數

mean() 函數定義: numpy.mean(a, axis, dtype, out,keepdims ) mean()函數功能:求取均值 經常操作的參數為axis,以m * n矩陣舉例: axis 不設置值,對 mn 個數求均值,返回一個實數 axis = 0:壓縮行,對各列 ...

Sat Oct 10 20:29:00 CST 2020 0 903
numpy中的mean()函數

mean() 函數定義: numpy.mean(a, axis, dtype, out,keepdims ) mean()函數功能:求取均值 經常操作的參數為axis,以m * n矩陣舉例: axis 不設置值 ...

Wed Jul 24 17:37:00 CST 2019 0 656
numpy中的mean()函數

本文鏈接:https://blog.csdn.net/lilong117194/article/details/78397329mean() 函數定義:numpy.mean(a, axis, dtype, out,keepdims ) mean()函數功能:求取均值經常操作的參數為axis,以m ...

Mon Nov 18 22:20:00 CST 2019 0 1942
What does -1 mean in numpy reshape?

The criterion to satisfy for providing the new shape is that 'The new shape should be compatible with the original shape' numpy allow us to give one ...

Sun Apr 09 05:35:00 CST 2017 0 1356
關於numpy mean函數的axis參數

結果是分別是 axis=0,那么輸出矩陣是1行,求每一列的平均(按照每一行去求平均);axis=1,輸出矩陣是1列,求每一行的平均(按照每一列 ...

Fri Mar 03 19:14:00 CST 2017 0 2759
np.mean()和np.std()函數

一、mean() 函數定義:numpy.mean(a, axis, dtype, out,keepdims ) mean()函數功能:求取均值經常操作的參數為axis,以m * n矩陣舉例: axis 不設置值,對 m*n 個數求均值,返回一個實數 axis = 0:壓縮行,對各列求 ...

Wed Jul 29 05:20:00 CST 2020 0 6114
transform: scale(x,y)

作用: 1)縮放 2)反轉 水平翻轉:transform: scale(-1,1); 垂直翻轉:transform: scale(1,-1); 水平垂直翻轉: transform: scale(-1,-1);或 transform ...

Fri Dec 14 19:05:00 CST 2018 0 701
 
粵ICP備18138465號   © 2018-2025 CODEPRJ.COM