fastmath.distance — generateme/fastmath 3.0.0-alpha1

Various distance functions

->acm-distance clj

(->acm-distance distance)

Create DistanceMeasure Apache Commons Math object based on given distance function.

angular clj

(angular v1 v2)

Angular distance

bound clj

(bound distance)

(bound distance diameter)

Create relative distance function to be bound by a diameter (default: by 1.0).

canberra clj

(canberra v1 v2)

Canberra distance

canberra-1d clj

(canberra-1d v1 v2)

Canberra distance for doubles

chebyshev clj

(chebyshev v1 v2)

Chebyshev distance

cosine clj

(cosine v1 v2)

Cosine similarity

discrete clj

(discrete v1 v2)

Discrete distance

earth-movers clj

(earth-movers v1 v2)

Earth-Movers distance

euclidean clj

(euclidean v1 v2)

Euclidean distance

euclidean-1d clj

(euclidean-1d v1 v2)

Euclidean distance for doubles

euclidean-sq clj

(euclidean-sq v1 v2)

Squared Euclidean distance

euclidean-sq-1d clj

(euclidean-sq-1d v1 v2)

Squared Euclidean distance for doubles

haversine clj

(haversine lat-lon1 lat-lon2)

Haversine distance

mahalanobis clj

(mahalanobis cov)

(mahalanobis x mean cov)

Mahalonobis distance for given covariance (seq of seqs) matrix.

mahalanobis-sq clj

(mahalanobis-sq cov)

(mahalanobis-sq x mean cov)

Squared Mahalonobis distance for given covariance (seq of seqs) matrix.

manhattan clj

(manhattan v1 v2)

Manhattan distance

minkowski clj

(minkowski p)

(minkowski p weights)

(minkowski v1 v2 p)

(minkowski v1 v2 p weights)

Minkowski distance for order p and optional weights for each dimension.

periodic-euclidean clj

(periodic-euclidean v1 v2 w)

Euclidean distance with periodic boundaries

shoenberg-transform clj

(shoenberg-transform distance)

(shoenberg-transform distance lambda)

Create relative distance function by applying Shoenberg transform.

weierstrass clj

(weierstrass v1 v2)

Weierstrass metric