View source: R/replace_consecutive.R

replace_consecutive | R Documentation |

If `x[i+1]=x[i]`

then `x[i+1]`

is replaced by `by`

for `i=1,...length(x)-1`

.

replace_consecutive(x, by = "", fun_for_identical = base::identical)

`x` |
A character or factor. |

`by` |
A character with length 1. |

`fun_for_identical` |
A function with two arguments called |

The `=`

is defined by function `identical`

by default.
This function can be changed by argument fun_for_identical

A character, same length as `x`

, now with consecutives replaced by `by`

.
If `length(x) < 2`

, x is returned unchanged.

x <- rep(c('a','b','c','d'), times=c(2,4,1,3)) x ## Not run: replace_consecutive(x) # NA should not be identical. So change fun_for_identical fun_for_identical <- function(x,y) !is.na(x) && !is.na(y) && identical(x,y) x <- c(1,1,3,3,NA,NA, 4) x ## Not run: replace_consecutive(x, by="99") ## Not run: replace_consecutive(x, by="99", fun_for_identical = fun_for_identical)

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