MATLAB: Find the total number of values between alimits

matrix arraymatrix manipulation

I have a matrix A= [1,2,3,4,5,6,7,8,9,10,11]. I would like to find out total number of elements which are greater that 3 and less than 10. expected answer is no of values between 3 &10 is= 6.

I have used formulae no of values =sum(A(:) == 3<A<10)); but it showing error.

Best Answer

you were close:

>> A= [1,2,3,4,5,6,7,8,9,10,11];
>> sum(A>3 & A<10)
ans =
       6

Related Solutions

MATLAB: Is it possible to extract the values with a vector of indices for each row without using the for statement from the matrix

see sub2ind()

A = [1, 2, 3; 4, 5, 6; 7, 8, 9; 10, 11, 12]; % reference matrix
b = [2; 1; 1; 3]; % index for each row that I want to extract
idx = sub2ind(size(A), 1:size(A,1), b.');
A(idx)

Result

>> A(idx)
ans =
     2     4     7    12

MATLAB: How the computation happening : sum(A~=0,2)

>>A~=0 % creates a logical matrix so when you sum along rows, you get three
ans =
  3×3 logical array
   1   1   1
   1   1   1
   1   1   1
>> sum(ans,2)
ans =
     3
     3
     3
>> sum(A,2) % perhaps you mean't to do this
ans =
     6
    15
    24

Best Answer

Related Solutions

MATLAB: Is it possible to extract the values with a vector of indices for each row without using the for statement from the matrix

MATLAB: How the computation happening : sum(A~=0,2)

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