Incorrect number of dimensions when using geosphere package in R

Asked Jan 15 '17 at 19:59

Active Sep 17 '17 at 14:25

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Trying to calculate the distance matrix between lat/long points in two datasets.... This is my R script code and then the error message. Any ideas on where I am going wrong?

> library(geosphere)
## step 1: open 2000 data for birds and air temp
> birds<-read.table(file.choose(),header=T,sep="\t")
> birds
> temp<-read.table(file.choose(),header=T,sep="\t")
> temp

##step 2: calculate the distance matrix D, which is the distance between lat/long points in your two datasets

> D = distm (birds<- 3:2, temp<- 2:1)
> new_birds =cbind(birds, temp[apply(D , 1 , which.min),])

Error in temp[apply(D, 1, which.min), ] : incorrect number of dimensions

edited Sep 17 '17 at 14:25

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asked Jan 15 '17 at 19:59

Isabella Eddington

Can you include the code to create temp and D, or at least the output of dim(temp) class(temp) dim(D) class(D)? – mdsumner Jan 15 '17 at 20:59
Appears that temp is not a two dimensional object. – IRTFM Jan 15 '17 at 21:28
Thanks, @mdsumner and 42- I have edited the question to include the code. Is that what you meant? – Isabella Eddington Jan 15 '17 at 22:02
do you mean to use `birds <- 3:2` or `birds[, 3:2]`, ie third and second column of birds. `birds <- 3:2` will assign the values 3 and 2 to birds – Richard Telford Jan 15 '17 at 23:33

Incorrect number of dimensions when using geosphere package in R

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