Class "SpatialMultiPointsDataFrame"
Class for spatial attributes that correspond to point sets
## S4 method for signature 'SpatialMultiPointsDataFrame' x[i, j, ..., drop = TRUE] ## S4 method for signature 'SpatialMultiPointsDataFrame,data.frame' coerce(from, to, strict=TRUE) ## S4 method for signature 'SpatialMultiPointsDataFrame' coordinates(obj) ## S4 method for signature 'SpatialMultiPointsDataFrame' show(object) ## S4 method for signature 'SpatialMultiPointsDataFrame' points(x)
data:Object of class data.frame containing the attribute data (may or may not contain the coordinates in its columns)
coords:Object of class "list"; the list with coordinates matrices;
points are rows in the matrix, the list length equals the number of rows in the data slot
bbox:Object of class "matrix"; bounding box
proj4string:Object of class "CRS"; projection string
Class "SpatialMultiPoints", directly.
Class "Spatial", by class "SpatialMultiPoints".
Edzer Pebesma, edzer.pebesma@uni-muenster.de
# create three sets of points: cl1 = cbind(rnorm(3, 10), rnorm(3, 10)) cl2 = cbind(rnorm(5, 10), rnorm(5, 0)) cl3 = cbind(rnorm(7, 0), rnorm(7, 10)) mpdf = SpatialMultiPointsDataFrame(list(cl1, cl2, cl3), data.frame(a = 1:3)) mpdf plot(mpdf, col = mpdf$a, cex = 1:3) as(mpdf, "data.frame") mpdf[1:2,]
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.