is.na(PB) throws warning when valid PB supplied

[MilesMcBain]

The issue that PB is a numeric vector, which is.na() is vectorised over. So if() sees a vector of FALSE which rightly throws a warning in newer versions of R.

Here's a Reprex:

library(tidyverse)
library(magrittr)

structure(list(

P = structure(c(2, 3, 3, 2, 1, 1, 0, 0, 0, 1,
2, 2, 3, 3, 2.25, 2.75, 2.75, 2.25, 0.25, 0.75, 0.75, 0.25, 0.25,
0.75, 0.75, 0.25, 1.1, 1.1, 2, 2, 1, 0, 0, 1, 2, 2, 0, 1, 1,
0, 1.25, 1.25, 1.75, 1.75, 0.25, 0.25, 0.75, 0.75, 1.25, 1.25,
1.75, 1.75), .Dim = c(26L, 2L), .Dimnames = list(NULL, c("x",
"y"))),

PB = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0), 

S = structure(c(1L, 2L, 3L, 4L,
5L, 6L, 7L, 8L, 9L, 10L, 11L, 12L, 13L, 14L, 15L, 16L, 17L, 18L,
19L, 20L, 21L, 22L, 23L, 24L, 25L, 26L, 2L, 3L, 4L, 1L, 6L, 7L,
8L, 9L, 10L, 5L, 12L, 13L, 14L, 11L, 16L, 17L, 18L, 15L, 20L,
21L, 22L, 19L, 24L, 25L, 26L, 23L), .Dim = c(26L, 2L), .Dimnames = list(
NULL, c("segment_start", "segment_end"))), 

SB = c(1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0), 

H = structure(c(2.5, 0.5, 0.5, 1.5, 0.5, 1.5), .Dim = c(3L,
2L))), .Names = c("P", "PB", "S", "SB", "H")) %>%
do.call(RTriangle::pslg, .) %>%
RTriangle::triangulate() 
#> Warning in if (is.na(PB)) {: the condition has length > 1 and only the
#> first element will be used

[davidcsterratt]

Sorry for the delay replying to this. A patch along the lines you've suggested would be great, though it's now not merging, so I'd appreciate it if you could take another look. If it were possible to include the reproducible example as a test, that would be great too, but don't worry. Ideally it would not use the tidyverse & magrittr libraries.

[davidcsterratt]

Ah - hold that! I should look at the earlier NA-related patch first #9