Calculating distance of multiple coordinates in R - r

Question

As written in the title I want to calculate the distance from all gas stations in my hometown to the two motorway accesses around here using the package osrm.
stations_ms contains Latitude & Longitude for the gas stations and highway_ms.df contains the lat & long for the motorway accesses.
Calculating the distance for just one row of my dataset is no problem, but I am not able to create a loop/function, which does it for every row.
Here is my code:
route4 <- osrmRoute(src = c(stations_ms$longitude[1], stations_ms$latitude[1]),
dst = highway_ms.df[1,],
overview = "FALSE")
for (i in 1:nrow(stations_ms)) {
route[i] <- osrmRoute(src = c(stations_ms$longitude[i], stations_ms$latitude[i]),
dst = highway_ms.df[1,],
overwiew = "FALSE")
}
```
Maybe someone can help me :)

Answer 1

Here is a workable example that might be helpful.
The overview in osrmRoute has the following options:
"full", "simplified" or FALSE. Use "full" to return the detailed
geometry, use "simplified" to return a simplified geometry, use FALSE
to return only time and distance.
If you only want time and distance, using FALSE should work fine. My comment was in regard to spelling (had a "w" instead of a "v").
I made up some example data:
my_points <- data.frame(
id = 1:3,
longitude = c(13.4, 13.5, 13.3),
latitude = c(52.4, 52.5, 52.3)
)
And wanted to find distances to a pharmacy in Berlin (using apotheke.df that comes with the osrm package). You could do:
library(osrm)
route <- list()
for (i in 1:nrow(my_points)) {
route[[i]] <- osrmRoute(src = c(my_points$longitude[i], my_points$latitude[i]),
dst = apotheke.df[1,],
overview = FALSE)
}
This starts with an empty list called route. Then, we fill in each list element with both time and duration. The end result is the following list:
R> route
[[1]]
duration distance
20.56 11.77
[[2]]
duration distance
17.38 7.63
[[3]]
duration distance
33.12 27.45
Which can be converted to a matrix or data frame (in this case, I made a matrix):
R> do.call(rbind, route)
duration distance
[1,] 20.56 11.77
[2,] 17.38 7.63
[3,] 33.12 27.45