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Find mininmum value across the column

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Arsal15
Arsal15 2016-2-4
评论： Torsten 2016-2-4
How I can find the minimum value across the column for each row. if I have a matrix of [51x4] and i have to compute minimum of the column value in each row.
  2 个评论
Stephen23
Stephen23 2016-2-4
编辑：Stephen23 2016-2-4
Some tips that will help you write code and solve tasks like this all by yourself:
  • read the documentation (e.g. min explains exactly how to do this).
  • experiment, try out different ways of doing things, experiment, play with your data, and experiment. Your computer will not explode if you make a mistake.
Arsal15
Arsal15 2016-2-4
编辑：Arsal15 2016-2-4
Thanks Stephen Cobeldick for your guidance :)

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采纳的回答

Torsten
Torsten 2016-2-4
From the documentation:
M = min(A,[],dim) returns the smallest elements along dimension dim. For example, if A is a matrix, then min(A,[],2) is a column vector containing the minimum value of each row.
Best wishes
Torsten.
  2 个评论
Arsal15
Arsal15 2016-2-4
编辑：Arsal15 2016-2-4
Thanks Torsten for your guidance.
But what if have to check like which values across a row are less than a threshold. like
if true
[minval, indexOfmin] = min((dist_mat,[],2)<5)
end
I tried this way like
if true
for i = length(dist_mat)
idx(i) = find (dist_mat(1,:)<5);
end
end
But for this i have to check out all index and then i have to pick the value. and giving error
In an assignment A(I) = B, the number of elements in B and I must be the same.
if true
idx(i) = find (dist_mat(1,:)<5);
end
Any simple solution to work out.
Torsten
Torsten 2016-2-4
You mean
[row col] = find(dist_mat < 5)
?
Best wishes
Torsten.

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