comparison toolboxes/FullBNT-1.0.7/KPMtools/setdiag.m @ 0:cc4b1211e677 tip

initial commit to HG from
Changeset:
646 (e263d8a21543) added further path and more save "camirversion.m"

+function M = setdiag(M, v)
+% SETDIAG Set the diagonal of a matrix to a specified scalar/vector.
+% M = set_diag(M, v)
+
+n = length(M);
+if length(v)==1
+  v = repmat(v, 1, n);
+end
+
+% e.g., for 3x3 matrix,  elements are numbered
+% 1 4 7 
+% 2 5 8 
+% 3 6 9
+% so diagnoal = [1 5 9]
+
+
+J = 1:n+1:n^2;
+M(J) = v;
+
+%M = triu(M,1) + tril(M,-1) + diag(v);
+