Subextract data from a matrix

Question

Joao 2012-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/31775-subextract-data-from-a-matrix

Dear all,

I'm trying to plot some satellite data with matlab, in which I would like to subset my interest area. The problem I'm having is to subset the matrix that contains my data. I've a 3250x1325 matrix of data, and a 3250x1 vector for lon and 1325x1 for lat. Does anyone has an idea how can I subset my interest area from the data matrix?

Thanks for the help.

Cheers

Joao

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Answer 1

Walter Roberson 2012-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/31775-subextract-data-from-a-matrix#answer_40263

在 MATLAB Online 中打开

latmatches = (lat >= LowerLatBound & lat <= UpperLatBound);
longmatches = (long >= LowerLongBound & long <= UpperLongBound);
datasubset = YourMatrix(longmatches, latmatches);

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Walter Roberson 2012-3-10

You say that your matrix is 3250 x 1325, and that your lon vector is 3250 x 1. That implies that the first index in to your matrix is lon. The error message you show uses lat as the first index of the matrix.

Joao 2012-3-10