R: Examples for 'sfheaders::sfg

### ** Examples


sfg_multipoint( 1:2 )

     [,1] [,2]
[1,]    1    2
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

sfg_multipoint( 1:3 )

     [,1] [,2] [,3]
[1,]    1    2    3
attr(,"class")
[1] "XYZ"        "MULTIPOINT" "sfg"

sfg_multipoint( 1:4 )

     [,1] [,2] [,3] [,4]
[1,]    1    2    3    4
attr(,"class")
[1] "XYZM"       "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:3, ncol = 3 ) )

     [,1] [,2] [,3]
[1,]    1    2    3
attr(,"class")
[1] "XYZ"        "MULTIPOINT" "sfg"

sfg_multipoint( data.frame( x = 1, y = 2, z = 3 )  )

     [,1] [,2] [,3]
[1,]    1    2    3
attr(,"class")
[1] "XYZ"        "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:4, ncol = 2 ) )

     [,1] [,2]
[1,]    1    3
[2,]    2    4
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:24, ncol = 2, byrow = TRUE ) )

      [,1] [,2]
 [1,]    1    2
 [2,]    3    4
 [3,]    5    6
 [4,]    7    8
 [5,]    9   10
 [6,]   11   12
 [7,]   13   14
 [8,]   15   16
 [9,]   17   18
[10,]   19   20
[11,]   21   22
[12,]   23   24
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:24, ncol = 3, byrow = TRUE ) )

     [,1] [,2] [,3]
[1,]    1    2    3
[2,]    4    5    6
[3,]    7    8    9
[4,]   10   11   12
[5,]   13   14   15
[6,]   16   17   18
[7,]   19   20   21
[8,]   22   23   24
attr(,"class")
[1] "XYZ"        "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:24, ncol = 4, byrow = TRUE ) )

     [,1] [,2] [,3] [,4]
[1,]    1    2    3    4
[2,]    5    6    7    8
[3,]    9   10   11   12
[4,]   13   14   15   16
[5,]   17   18   19   20
[6,]   21   22   23   24
attr(,"class")
[1] "XYZM"       "MULTIPOINT" "sfg"

sfg_multipoint( data.frame( x = 1:5, y = 1:5 ) )

     [,1] [,2]
[1,]    1    1
[2,]    2    2
[3,]    3    3
[4,]    4    4
[5,]    5    5
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

## using columns

sfg_multipoint( matrix( 1:24, ncol = 4, byrow = TRUE ), x = 1, y = 2 )

     [,1] [,2]
[1,]    1    2
[2,]    5    6
[3,]    9   10
[4,]   13   14
[5,]   17   18
[6,]   21   22
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:24, ncol = 4, byrow = TRUE ), x = 1, y = 2, z = 3 )

     [,1] [,2] [,3]
[1,]    1    2    3
[2,]    5    6    7
[3,]    9   10   11
[4,]   13   14   15
[5,]   17   18   19
[6,]   21   22   23
attr(,"class")
[1] "XYZ"        "MULTIPOINT" "sfg"

sfg_multipoint( matrix( 1:24, ncol = 4, byrow = TRUE ), x = 3, y = 4 )

     [,1] [,2]
[1,]    3    4
[2,]    7    8
[3,]   11   12
[4,]   15   16
[5,]   19   20
[6,]   23   24
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

df <- data.frame( x = 1:5, y = 1:5, z = 11:15, m = 11:15 )
sfg_multipoint( df, x = "x", y = "y" )

     [,1] [,2]
[1,]    1    1
[2,]    2    2
[3,]    3    3
[4,]    4    4
[5,]    5    5
attr(,"class")
[1] "XY"         "MULTIPOINT" "sfg"

sfg_multipoint( df, x = "x", y = "y", z = "z" )

     [,1] [,2] [,3]
[1,]    1    1   11
[2,]    2    2   12
[3,]    3    3   13
[4,]    4    4   14
[5,]    5    5   15
attr(,"class")
[1] "XYZ"        "MULTIPOINT" "sfg"

sfg_multipoint( df, x = "x", y = "y", z = "z", m = "m" )

     [,1] [,2] [,3] [,4]
[1,]    1    1   11   11
[2,]    2    2   12   12
[3,]    3    3   13   13
[4,]    4    4   14   14
[5,]    5    5   15   15
attr(,"class")
[1] "XYZM"       "MULTIPOINT" "sfg"

Examples for 'sfheaders::sfg_multipoint'

sfg multipoint