MATLAB: Taking min of a vector and all values within 10% error

all valueserrorminvector

I need a way to get all the values within a 10% error of the minimum value of a vector. How could I go about that?

Best Answer

This considers both positive and negative min(x),

   xmin=min(x);
   coeff=1+0.1*sign(xmin);
   values = x(x<=coeff*xmin)

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MATLAB: List the 10% highest values of a distribution

I guess that "x_UDP" is the same as "x".

RMSF = load('rmsf.dat');
n = RMSF(:,1); %number of residue
x = RMSF(:,2); %RMSF for given residue
[Ms, index] = sort(x, 'descend');
Result  = Ms(1:ceil(length(Ms)*0.1));
Result2 = n(index(1:ceil(length(Ms)*0.1)));
% Or easier:
RMSF_sorted = sortrows(RMSF, 2, 'descend');
Result      = RMSF_sorted(1:ceil(size(RMSF, 1) * 0.1), :)

MATLAB: Sum all negative values in a matrix

Too trivial?

sum(A.*(A < 0),1)./sum(A.*(A > 0),1)

The point is, to learn to start to think in terms of matrices and vectors, and operations on those objects.

Of course, be careful if there are no positive elements in a column of the array. In that case, you will get either an Inf or NaN result, depending on if there are any negative values in that column.

Best Answer

Related Solutions

MATLAB: List the 10% highest values of a distribution

MATLAB: Sum all negative values in a matrix

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