How to Find a slope

    d = 'E:\\ \\ DummyFile\\';
    filePattern = fullfile(d, 'Run*');
    file = dir(filePattern)
    n = length(file)
    for k = 1:n
      baseFileName = file(k).name;
      FullFileName = fullfile(d, baseFileName, 'dummy.csv');
      temp = readtable(FullFileName, 'ReadVariableNames' true, 'ReadRowsNames' true);
      x(:, :, k) = temp(:, :);
    end
    %Finding Average and Std
    Avg = mean(x,3);
    Standard_deviation = std(x,0,3)

[madhan ravi]

Slope of what?

[Utsav Dobhi]

Slope of x. I am not good in matlab.

So basically, I am reading total 30 .csv file and each of .csv file contains 96x24.

AVG = mean(x,3) gave me 96x24x30

Standard_deviation = std(x,0,3) gave me 96x24x30.

How should i find slope?

[dpb]

AVG = mean(x,3) gave me 96x24x30
Standard_deviation = std(x,0,3) gave me 96x24x30.

That doesn't seem right -- you built a 3D array from the 2D temp array by adding each to the next plane then did a calculation over the 3rd dimension -- that should reduce to one plane in the 3rd dimension.

Also, you've still not defined what you want the slope of with respect to what's the "x" and what's the "y"?

[Image Analyst]

Just before you do that, do this

whos x

and tell us what it spits out to the command window.