Say I have a matrix with features (repeats) as rows (n=6000) and individuals as columns (n=30) filled with integer values (repeat copy number) like so:
individual 1 individual 2 individual 3
repeat 1 4 5 3
repeat 2 8 11 9
repeat 3 16 19 20
I want to compare this group to another group with data in a matrix just like this one.
Per row, it is very easy. I can calculate any measure of variance, plot as histogram to see the distributions etc. and just compare between my groups. However, what I would really like is some kind of visualization for the whole matrix (I don't want a picture of 6000 histograms vs 6000 histograms)
is there any way?
Dear Mike de Groot
These links might be helpful, have a look:
1. https://stackoverflow.com/questions/21752275/visualizing-a-large-matrix-in-matlab
2. https://www.mathworks.com/matlabcentral/fileexchange/56687-easy-visualization-of-rows-of-a-matrix-or-more-matrices
3. https://stats.stackexchange.com/questions/8370/how-to-visualize-summarize-a-matrix-with-number-of-rows-gg-number-of-columns
Kind Regards
Qamar Ul Islam
You can do it via diagonalization, SVD/PCA, e.g., via ATLAB: https://au.mathworks.com/matlabcentral/answers/33365-computing-svd-of-very-large-matrix
For a 2D matrix, the MATLAB function "mat2gray" can convert it to a grayscale image which might make it easier to visualize and compare
https://in.mathworks.com/help/images/ref/mat2gray.html
Dr Imtiaz Husain Ranjan Parekh Muhammad Ali Thank you all a lot for your suggestions! I
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