how to truncate specific rows and columns of matrix in matlab.

Question

hani 2016-1-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/262488-how-to-truncate-specific-rows-and-columns-of-matrix-in-matlab

评论： Steven Lord 2020-11-16

A = [10,20,30,40; ...
     20,30,40,50; ...
     30,40,50,60; ...
     40,50,60,70];

now i want to truncate the row no 2 and col no 2 and wants to get new matrix of 3x3? kindly help me

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Jan 2016-1-3

Please use meaningful tags. The question has no relation to "matlab compiler".

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Azzi Abdelmalek 2016-1-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/262488-how-to-truncate-specific-rows-and-columns-of-matrix-in-matlab#answer_204915

在 MATLAB Online 中打开

A(2,:)=[]
A(:,2)=[]

4 个评论
显示 2更早的评论隐藏 2更早的评论

hani 2016-1-12

sir i have a matrix 10x10 and i want to remove row and col no 3,5,7,8,10 and wants to get 5X5 matrix there are different ways to truncate but i need that way in which original matrix should remain same and truncation process should done in a new metric, one solution of truncation..... B=A(:,2:7); C=B(2:7,:); that means we want entities from 2 to 7 remaining will truncate. but i need a specific row and col to delete........ and net matrix with new name???/?

Steven Lord 2020-11-16

Rajinder singh wrote a flag that is more of a comment.

we can also delete columns by this method, but in case of columns deletion, the colon has to come first in the bracket, then comes the cols_to_delete

Please use flags for alerting contributors with higher level of privileges of spam, places where someone has edited away a question, answer, or comment that renders later answers or comments unclear, etc. If you have clarifying questions, additional information to contribute (as was the case here), or want to start / reopen a discussion please add a comment.

请先登录，再进行评论。