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How do I find the maximum/last index value from a list of indices

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I have imported some data to form an array called 'newData1.data' and then find the row/col indices for each value 1-49 in a vector called 'numbers'
numbers=1:1:49;
for i=1:length(numbers)
[row,col] = find(newData1.data' == i);
end
How do I find the greatest/maximum/last column number?
test(i) = max(col)
does not work within the loop. There are plenty of questions and answers on how to get the indices of the maximum value in the array, but that is not what I am looking for.
Best regards,
Alex

Akzeptierte Antwort

Image Analyst
Image Analyst am 24 Dez. 2016
Try this:
numbers = 1 : 1 : 49;
for k = 1 : length(numbers)
[rows, columns] = find(newData1.data' == numbers(k));
maxColumns(k) = max(columns)
end
  2 Kommentare
Alex
Alex am 24 Dez. 2016
This is the same thing I was doing. It returns the error, "Index exceeds matrix dimensions."
Image Analyst
Image Analyst am 24 Dez. 2016
It's not exactly the same thing you were doing since my code is more robust in that it compares "numbers" instead of i. Your code defines numbers but then never uses it. Anyway there is nothing wrong so the only way we can continue is if you attach your data via a .mat file.

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Weitere Antworten (1)

Alex
Alex am 18 Mär. 2017
Solution: I found that I created a variable called min/max: max=max(data) min=min(data) By changing these lines to: dmax=max(data) dmin=min(data) the max(idx), min(idx) function as expected.

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