# How can I extract a vector of values from a spectrum?

조회 수: 1 (최근 30일)
Enrico Zanazzi 2018년 4월 10일
답변: NISARGA G K 2018년 4월 30일
I have an optical spectrum that is represented by two vectors: X and Y. In X I have all the values (X1,X2,X3...) and in Y their absolute frequncies (Y1,Y2,Y3...) (namely counts). Let us suppose, for example, that X1 has 4 counts (Y1=4) and X2 has 5 counts (Y2=5) and so on and I want to exctract the following vector:
X1 X1 X1 X1 X2 X2 X2 X2 X2 .....
How can it be done? thank you!

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### 채택된 답변

NISARGA G K 2018년 4월 30일
I understand that you would like to extract a vector with X values repeated as per the count in Y. The following code would help you do the same.
c=[];
for i=1:length(x)
c=[c;repmat(x(i),y(i),1)];
end

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