CODEWITHSUNDEEP
rgeospatialr-sp
dissertationstacker
dissertationstacker

Reputation: 21

Converting numeric values of Longitude and Latitude to Spatial Data

I have a data frame EuropeanCities of latitude and longitude 

Latitude Longitude
52.00529    4.173965
51.87938    6.268500
43.36661    -8.406812

Currently these values are of a numeric class however I need to set them to spatial coordinates for spatial data

How do I go about converting the class of these values using the spfunction?

Upvotes: 1

Views: 1064

Answers (1)

mathematical.coffee
mathematical.coffee

Reputation: 56935

Just use SpatialPoints from the sp package..

    mydf <- structure(list(Latitude = c(52.00529, 51.87938, 43.36661), Longitude = c(4.173965, 
6.2685, -8.406812)), .Names = c("Latitude", "Longitude"), class = "data.frame", row.names = c(NA, 
-3L))
    library(sp)
    SpatialPoints(mydf)
    # SpatialPoints:
    #      Latitude Longitude
    # [1,] 52.00529  4.173965
    # [2,] 51.87938  6.268500
    # [3,] 43.36661 -8.406812
    # Coordinate Reference System (CRS) arguments: NA

(You can supply your own proj string and so on; see ?SpatialPoints).

Upvotes: 0

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