diff options
author | Samuel Fadel <samuelfadel@gmail.com> | 2015-05-15 18:10:52 -0300 |
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committer | Samuel Fadel <samuelfadel@gmail.com> | 2015-05-15 18:10:52 -0300 |
commit | 0b6df071d94ae8f7c9cdd3c96506a1420129e471 (patch) | |
tree | ea73a59457beba89ef6bab2b16d2d679d8dd1078 /dist.cpp |
Initial commit. ForceScheme seems bugged.
Diffstat (limited to 'dist.cpp')
-rw-r--r-- | dist.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/dist.cpp b/dist.cpp new file mode 100644 index 0000000..aaa2167 --- /dev/null +++ b/dist.cpp @@ -0,0 +1,20 @@ +#include "mp.h" + +double mp::euclidean(const arma::rowvec &x1, const arma::rowvec &x2) +{ + return arma::norm(x1 - x2, 2); +} + +arma::mat mp::dist(const arma::mat &X, double (*distCalc)(const arma::rowvec &, const arma::rowvec &)) +{ + arma::uword n = X.n_rows; + arma::mat D(n, n, arma::fill::zeros); + + for (arma::uword i = 0; i < n; i++) + for (arma::uword j = 0; j < i; j++) { + D(i, j) = distCalc(X.row(i), X.row(j)); + D(j, i) = D(i, j); + } + + return D; +} |