help me to type this eq in MATLAB script

help me to type this eq(file attached) in MATLAB script

[David Hill]

Attach your input arrays, show us your code, and ask a specific question.

[Jan]

What have you tried so far? What exactly is the problem? Is the "N" an exponent or index?

[nayan gupta]

N is the Power of alpha

[Image Analyst]

Understood. But what did you think of the answers below?

Answer 1

[Image Analyst]

It's not clear what your variable names are, how many dimensions they have, and what variable (i or r) is in each dimension, probably because you didn't read the community Guidelines before posting. But here is a stab at it:

denominator = sum(xw(:, r) .* alpha(:, r) .^ N);
xD(r) = xw(:, r) ./ denominator

If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:

TUTORIAL: How to ask a question (on Answers) and get a fast answer

[Walter Roberson]

If is a row vector of length C and α is a 2D array that is C by something, then you could save on the explicit sum by using

xd = xw ./ (xw * alpha.^N)

where * is the matrix multiplication operation.

but for the sizes to work out properly, alpha would have to turn out to be square