### python

#### Changing the len() function in Python [closed]

Before, in my code I had this vector: x = [ [0.72,0.82], [0.91,-0.69], [0.03,0.93], [0.12,0.25], [0.96,0.47], [0.8,-0.75] ] And there was this for that worked correctly: for k in range(1,10): for i in range(0,len(x)): sum = 0 for j in range(0,len(x[i])): sum += x[i][j] * w[j] I have to make a change in the vector: x = [ [0.72,0.82,-1], [0.91,-0.69,-1], [0.03,0.93,-1], [0.12,0.25,-1], [0.96,0.47,-1], [0.8,-0.75,-1] ] In this sense, I realize that I need to make a modification in my len(x[i]) so that the previous result is the same as now, I tried to len(x[0][1]), but it did not work, what could I do?

just have j go from 0 to 1 then. (or if you want, "len(x[i]) - 1") for k in range(1,10): for i in range(0,len(x)): sum = 0 for j in range(2): sum += x[i][j] * w[j]

### Related Links

In SQLAlchemy is it possible to dump and load from a Table (not from a mapped class)?

Python: Parsing logical string into list of lists

Optical flow with OpenCV and Python using initial flow estimate

What is the difference between numpy.polyfit and scipy.polyfit? [duplicate]

How to get the value of submitted option of django_filters in view?

Cannot upload text files to django project

How to create a unit test to check the response of an API made in Flask?

cannot access excel file using Pandas Python

Python OpenCV: Conversion from float to int for using cv2.line()

Make a Scatter Plot in matplotlib with dates on x axis and values on y

Decoding NumPy int64 binary representation

Groupby DataFram by its rank/percentile

AttributeError: 'str' object has no attribute 'loads', json.loads()

Can anyone explain me the example of an exploit in Python’s pickle module?

Why does pandas multi-index dataframe slicing seem inconsistent?

How to restore a tensorflow network and to use it