problem using the find function

Question

Kobi 2014-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/114716-problem-using-the-find-function

回答： Kobi 2014-2-4

samples.jpg

hi, i'm trying to use the find function to locate specific values form matrix array and to remove them (as you can see in the attached m-file) https://www.dropbox.com/s/bcynkiblh7n8tr5/check_values_s_ds_script.m

i use the function like this:

[row,col] = find(resault>0.899 & resault < 1);

but still i find values that are greater then 1 (some are even 50) what am i doing wrong?

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Kobi 2014-2-3

the colorbar shows the number 35 in red as the highest value also i can see red dots and in the matrix on those locations (columns and rows) there are number greater then 1

Azzi Abdelmalek 2014-2-3

在 MATLAB Online 中打开

I don't know how you got those figures, but I can assure you that

row,col] = find(resault>0.899 & resault < 1)

will find only location of numbers that are between 0.899 and 1

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Answer 1

Kobi 2014-2-4

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i found the problem i have been using find function the wrong way by changing the output to just one (index of matrix) the function give me the correct location of each and every value

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Answer 2

Amit 2014-2-3

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row and col are the indices in the matrix which have the value you need. Find function just finds the indices which satisfy the condition, however find function does not replaces those values.