用橙色的Python脚本小部件创建cumsum列

如果你像我一样是Python新手,橙色文档很难理解。

这是我在Python脚本小部件中的代码

import numpy as np

## make a copy from the data that widget recieves
out_data = in_data.copy()

## compute cumulative sum of column values
newCumsumColValues = np.cumsum(out_data[:,('myCumsumcolTarget')])                

## i got the values
print(newCumsumColValuesl)        

## i need to create a new column with the values in out_data
## i've tried to update column values first to test

## with an static value column values updated to 8
out_data[:,'myCumsumcolTarget'] = 8    

## with newCumsumColValue is NOT working
out_data[:,'myCumsumcolTarget'] = newCumsumColValues

这些例子对我来说很难理解:

https://docs.orange.biolab.si/3/visual-programming/widgets/data/pythonscript.html https://docs.orange.biolab.si/3/data-mining-library/tutorial/data.html#exploration-of-the-data-domain

提前感谢, 文斯。