How can i group data according to size i impose?

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Gianluca Borgna
Gianluca Borgna 2018-2-26
回答： Bob Thompson 2018-2-26
Hello,
I'm trying to categorize data within some categories of my choice. I would like the elements inside the vector to be discretized according to a rule that I impose.
In particular, I have the trend over time of an index and I would like for each i-th value to be categorized according to whether that value enters or does not enter a certain range imposed by me.
E.G
V = [61 65 68 100];
If 1 If 65 2
The result that I expect is a vector of equal size but that contains the categorization that I impose.
C = [1 1 2 2]
I tried the command 'discretize' and the like but I can not find what i'm looking for.
I thank everyone in advance who wants to suggest something about it.

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回答（1 个）

Bob Thompson
Bob Thompson 2018-2-26
V = [ 61 65 68 100 ];
for I = 1:length(V);
if V(I)<= 65;
C(I) = 1;
else
C(I) = 2;
end
end
Since you only specified one condition I only wrote one into the code, but you could expand for other conditions using elseif (condition) in the if statement.

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