# NOT RUN {
xy_transform(c(1, 2, 3), c(1, 2, 3), to = 3857)
xy_transform(c(1, 2, 3), c(NA, NA, NA), to = 3857)
xy_transform(c(1, 2, 3), c(NA, 2, 3), to = 3857)
xy_transform(c(1, 2, 3), c(1, 2, NA), to = 3857)
# }
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