CODEWITHSUNDEEP
matlab
Ricky Bhola
Ricky Bhola

Reputation: 55

Delete Specific Rows in Matlab

I have a fairly large 2x2 matrix containing date and temperatures. There is a cluster of NaNs and incorrect data. I used find to get the index that contains the incorrect data. These indexes are stored in another variable. How do i remove the rows (date and value) corresponding to the indices? Thanks.

Upvotes: 1

Views: 6171

Answers (1)

anandr
anandr

Reputation: 1662

fairly large 2x2 matrix makes little or no sense.

This is part from MATLAB documentation

You can delete rows and columns from a matrix by assigning the empty array [] to those rows or columns. Start with

A = magic(4)
A =
    16     2     3    13
     5    11    10     8
     9     7     6    12
     4    14    15     1

Then, delete the second column of A using

A(:, 2) = []

This changes matrix A to

A = 
   16    3   13
    5   10    8
    9    6   12
    4   15    1

Also you can delete multiple rows/columns at once:

A([1 3],:)=[]
A =
    5    10     8
    4    15     1

Upvotes: 5

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