R Under development (unstable) (2023-12-02 r85657 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> require(sp)
Loading required package: sp
> require(spacetime)
Loading required package: spacetime
> options(xts_check_TZ=FALSE)
> 
> # go through time matching first:
> x = as.POSIXct("2000-01-01", tz="GMT") + (0:9) * 3600
> y = x + 1
> y[1] = y[2]
> format(x, tz="GMT")
 [1] "2000-01-01 00:00:00" "2000-01-01 01:00:00" "2000-01-01 02:00:00"
 [4] "2000-01-01 03:00:00" "2000-01-01 04:00:00" "2000-01-01 05:00:00"
 [7] "2000-01-01 06:00:00" "2000-01-01 07:00:00" "2000-01-01 08:00:00"
[10] "2000-01-01 09:00:00"
> format(y, tz="GMT")
 [1] "2000-01-01 01:00:01" "2000-01-01 01:00:01" "2000-01-01 02:00:01"
 [4] "2000-01-01 03:00:01" "2000-01-01 04:00:01" "2000-01-01 05:00:01"
 [7] "2000-01-01 06:00:01" "2000-01-01 07:00:01" "2000-01-01 08:00:01"
[10] "2000-01-01 09:00:01"
> end.x = delta(x)
> end.y = delta(y)
> timeMatch(y, y)
 [1]  1  1  3  4  5  6  7  8  9 10
> timeMatch(y, y, end.x = end.y, end.y = end.y)
 [1] NA  2  3  4  5  6  7  8  9 10
Warning messages:
1: Some empty 'to' intervals encountered. Setting to NA... 
2: Some empty 'from' intervals encountered. Setting to NA... 
> 
> timeMatch(x, y)
 [1] NA NA NA NA NA NA NA NA NA NA
> timeMatch(x, y, end.y = end.y)
 [1] NA NA  2  3  4  5  6  7  8  9
Warning message:
Some empty 'to' intervals encountered. Setting to NA... 
> timeMatch(x, y, end.x = end.x)
 [1] NA  1  3  4  5  6  7  8  9 10
> timeMatch(x, y, end.x = end.x, end.y = end.y)
 [1] NA  2  2  3  4  5  6  7  8  9
Warning message:
Some empty 'to' intervals encountered. Setting to NA... 
> 
> timeMatch(x, y, returnList = TRUE)
[[1]]
integer(0)

[[2]]
integer(0)

[[3]]
integer(0)

[[4]]
integer(0)

[[5]]
integer(0)

[[6]]
integer(0)

[[7]]
integer(0)

[[8]]
integer(0)

[[9]]
integer(0)

[[10]]
integer(0)

> timeMatch(x, y, returnList = TRUE, end.y = end.y)
[[1]]
integer(0)

[[2]]
integer(0)

[[3]]
[1] 2

[[4]]
[1] 3

[[5]]
[1] 4

[[6]]
[1] 5

[[7]]
[1] 6

[[8]]
[1] 7

[[9]]
[1] 8

[[10]]
[1] 9

Warning message:
Some empty 'to' intervals encountered. Setting to NA... 
> timeMatch(x, y, returnList = TRUE, end.x = end.x)
[[1]]
integer(0)

[[2]]
[1] 1 2

[[3]]
[1] 3

[[4]]
[1] 4

[[5]]
[1] 5

[[6]]
[1] 6

[[7]]
[1] 7

[[8]]
[1] 8

[[9]]
[1] 9

[[10]]
[1] 10

> timeMatch(x, y, returnList = TRUE, end.x = end.x, end.y = end.y)
[[1]]
integer(0)

[[2]]
[1] 2

[[3]]
[1] 2 3

[[4]]
[1] 3 4

[[5]]
[1] 4 5

[[6]]
[1] 5 6

[[7]]
[1] 6 7

[[8]]
[1] 7 8

[[9]]
[1] 8 9

[[10]]
[1]  9 10

Warning message:
Some empty 'to' intervals encountered. Setting to NA... 
> 
> end.x = delta(x)
> y = x + 1 # don't replicate the first
> end.y = delta(y)
> 
> a = timeMatch(x, y, end.x = end.x, end.y = end.y)
> library(intervals)
> b = timeMatch(x, y, end.x = end.x, end.y = end.y)
> detach()
> all.equal(a, b)
[1] TRUE
> 
> a = timeMatch(x, y, end.y = end.y)
> library(intervals)
> b = timeMatch(x, y, end.y = end.y)
> detach()
> all.equal(a, b)
[1] TRUE
> 
> a = timeMatch(x, y, end.x = end.x)
> library(intervals)
> b = timeMatch(x, y, end.x = end.x)
> detach()
> all.equal(a, b)
[1] TRUE
> 
> # with end points:
> 
> # next, try ST?DF objects:
> t = as.POSIXct("2010-05-01", tz="GMT")+3600*1:10
> xy = SpatialPixels(SpatialPoints(expand.grid(1:10,1:10)))
> y = STFDF(xy, t, data.frame(a = 1:1000))
> stplot(y)
> x = y
> all(over(x, y) == 1:1000)
[1] TRUE
> 
> t0 = c(t[1]-1,t[c(2,4,10)]) # c() drops TZ?
> attr(t0, "tzone") = attr(t, "tzone")
> x = c(4,5,6,8)
> xy = SpatialPixels(SpatialPoints(expand.grid(x,rep(1,4))))
Warning messages:
1: In points2grid(points, tolerance, round) :
  grid has empty column/rows in dimension 1
2: In points2grid(points, tolerance, round) :
  cell size from constant coordinate 2 possibly taken from other coordinate
> x = STFDF(xy, t0, data.frame(a = 1:64))
> over(x, y)
     a
1    4
2    5
3    6
4    8
5    4
6    5
7    6
8    8
9    4
10   5
11   6
12   8
13   4
14   5
15   6
16   8
17 104
18 105
19 106
20 108
21 104
22 105
23 106
24 108
25 104
26 105
27 106
28 108
29 104
30 105
31 106
32 108
33 304
34 305
35 306
36 308
37 304
38 305
39 306
40 308
41 304
42 305
43 306
44 308
45 304
46 305
47 306
48 308
49 904
50 905
51 906
52 908
53 904
54 905
55 906
56 908
57 904
58 905
59 906
60 908
61 904
62 905
63 906
64 908
> 
> x = as(x, "STSDF")
> over(x, y)
     a
1    4
2    5
3    6
4    8
5    4
6    5
7    6
8    8
9    4
10   5
11   6
12   8
13   4
14   5
15   6
16   8
17 104
18 105
19 106
20 108
21 104
22 105
23 106
24 108
25 104
26 105
27 106
28 108
29 104
30 105
31 106
32 108
33 304
34 305
35 306
36 308
37 304
38 305
39 306
40 308
41 304
42 305
43 306
44 308
45 304
46 305
47 306
48 308
49 904
50 905
51 906
52 908
53 904
54 905
55 906
56 908
57 904
58 905
59 906
60 908
61 904
62 905
63 906
64 908
> 
> xy = SpatialPoints(cbind(c(1,3,5,10),c(5, 3, 8, 2)))
> x = STIDF(xy, t0, data.frame(a = 1:4))
> over(x,y)
    a
1  NA
2 123
3 375
4 920
> 
> t1 = c(t[1]-1,t[c(2,2,10)])
> attr(t1, "tzone") = attr(t, "tzone")
> x1 = STIDF(xy[c(1,2,2,4)], t1, data.frame(a = 1:4))
> 
> over(x1, x)
  a
1 1
2 2
3 2
4 4
> over(x, x1)
   a
1  1
2  2
3 NA
4  4
> over(x1, x, returnList = TRUE)
[[1]]
  a
1 1

[[2]]
  a
2 2

[[3]]
  a
2 2

[[4]]
  a
4 4

> over(x, x1, returnList = TRUE)
[[1]]
  a
1 1

[[2]]
  a
2 2
4 4

[[3]]
[1] a
<0 rows> (or 0-length row.names)

[[4]]
  a
4 4

> 
> proc.time()
   user  system elapsed 
   1.26    0.14    1.39