MATLAB: How to remove NaN in rows and columns of excel data set in matlab
nan
Hi, I have the excel dataset of 50*48 matrix but it is having some NaN values also? I want to remove the NaN values from the matrix without loss of data.
Thank you in advance.
Best Answer
You can use isnan() to identify nan locations and then build a cell array with nulls there. If m is your matrix (untested code):
[rows, columns] = size(m);
nanLocations = isnan(m);
ca = cell(rows, columns); % Initialize cell array.
for row = 1 : rows
for col = 1 : columns
if ~nanLocations(row, col)
ca{row, col} = m(row, col); % Only fill cell if it's not nan.
Like that, each value of "a" is correlated to each value of "b", but applying the formula of the correlation, the correlation of two single numbers is NaN. To compute the correlation correctly, traspose the input vectors
Best Answer