MATLAB: Reading element from matrix

how to read vctor elements

Hi guys.

please u have three vector matrices where or one matrix with three columns x y n. n is the sample number. example

n=[1 1 1 2 2 2 2 3 3 4 4 4 4 4]
x=[4 5 3 2 3 6 8 3 2 1 6 7 6 8]
y=[1 2 5 6 7 8 9 5 6 7 4 3 5 5]

how can I read the values in x and y corresponding to every fixed value in n like for n=1 x=[4 5 3] y=[1 2 5]

Thanks in advance

xOut = x(n==1);
yOut = y(n==1);

Repeat for any value of n that you want.

x = x([true diff(x)~=0])

x = [1,2,3,4,5,6,4,2,7,5,3]
y=[x;x]
y=y(:)'

%Or

n=2
x=repmat(x,n,1);
y=y(:)'