Calculating distance using geodist for many coordinates

TrueTears — Wed, 27 May 2020 02:26:26 GMT

I have a dataset where the variables look like this:

latitude	longitude	latitude1	longitude1	latitude2	longitude2	latitude3	longitude3

until you reach latitude99 and longitude99.

What I wish to do is calculate the distance between latitude and longitude and each of the pairs from 1 to 99. For example:

distance1 = geodist(latitude, longitude, latitude1, longitude1)
distance2 = geodist(latitude, longitude, latitude2, longitude2)
distance99 = geodist(latitude, longitude, latitude99, longitude99)

Obviously I do not want to manually type out each distance variable until distance99, is there a faster way to do this? Thank you.

Re: Calculating distance using geodist for many coordinates

PGStats — Wed, 27 May 2020 03:43:00 GMT

Use arrays:

data want;
array lat_ latitude1-latitude99;
array lon_ longitude1-longitude99;
array dist_ distance1-distance99;
set myDataset;
do i = 1 to dim(dist_);
	dist_{i} = geodist(latitude, longitude, lat_{i}, lon_{i});
	end;
drop i;
run;

(untested)

topic Calculating distance using geodist for many coordinates in SAS Programming

Calculating distance using geodist for many coordinates

Re: Calculating distance using geodist for many coordinates