CODEWITHSUNDEEP
rfunctionmatrixvectorapply
Nitin Krishnan
Nitin Krishnan

Reputation: 25

R Applying vector to vector function for matrix to matrix

I am using distHaversine, which takes two points and gives a distance, i.e.

distHaversine(c(35,-75),c(35.1,-74.9)) prints: [1] 11501.11

I have two matricies, A and B that are (m by 2) and (n by 2), i.e. A has m points and B has n points. How can I use distHaversine on A and B to get a m x n matrix of distances?

Upvotes: 1

Views: 207

Answers (1)

StrikeR
StrikeR

Reputation: 1628

I hope you are using distHaversine of geosphere package. If so, this could be of your help:

t(apply(a, 1, function(x)distHaversine(x, b)))

Upvotes: 1

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