what is different between 'corr' and 'corrcoef'?
108 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
syen lai
am 3 Jul. 2012
Kommentiert: Michael Moore
am 12 Jun. 2018
I wanna compute correlation coefficient of two matrices,which function should I use? Thanks previously.
0 Kommentare
Akzeptierte Antwort
Wayne King
am 3 Jul. 2012
Bearbeitet: Wayne King
am 3 Jul. 2012
If you want a single correlation coefficient between two matrices, then neither, see corr2.
For two matrices, corr() returns the pairwise correlation between the columns of the two matrices if that is what you want.
If you input two matrices into corrcoef(), it converts the matrices to column vectors first and then just computes the correlation coefficient between those two vectors.
So for example:
X = randn(8,8);
Y = randn(8,8);
corrcoef(X,Y)
is the same as
X1 = X(:);
Y1 = Y(:);
corrcoef(X1,Y1)
3 Kommentare
Abhivyakti
am 21 Aug. 2012
What if we enter one matrix to the above functions, i.e corr, corrcoef and corr2. ?
Weitere Antworten (0)
Siehe auch
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!