Calling specific cells and averaging
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
Edward Lannon
el 16 de Nov. de 2020
Comentada: Edward Lannon
el 16 de Nov. de 2020
Hello,
I have a 3000X3000 matrix. I also have a list of coordinates that I would like to use to indicate which values to select and average all the selected values. I can't seem to do it. I attached an example of a list.
Thank you for your time.
2 comentarios
Geoff Hayes
el 16 de Nov. de 2020
Edward - please explain how the list of coordinates relates to the 3000x3000 matrix.
Respuesta aceptada
Hrishikesh Borate
el 16 de Nov. de 2020
Hi,
I understand that you want to calculate average of elements present at indices stored in the file “VisualVisualTest.mat”. This can be done using following code:-
visualTest = load('VisualVisualTest.mat');
a = magic(3000); %3000x3000 matrix
visualCordsall = visualTest.VisualVisualCordsall;
indicesMatrix = transpose(reshape(cell2mat(visualCordsall),2,[]));
sz = [3000, 3000];
ind = sub2ind(sz, indicesMatrix(:,1), indicesMatrix(:,2));
avgValue = mean(a(ind));
Where, avgValue stores the average value.
Más respuestas (0)
Ver también
Categorías
Más información sobre Numeric Types en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!