survPen: instr – R documentation

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instr

Position of the nth occurrence of a string in another one

Returns the position of the nth occurrence of str2 in str1. Returns 0 if str2 is not found

instr(str1, str2, startpos = 1, n = 1)

`str1`	main string in which str2 is to be found
`str2`	substring contained in str1
`startpos`	starting position in str1; default is 1
`n`	which occurrence is to be found; default is 1

number representing the nth position of str2 in str1

library(survPen)

instr("character test to find the position of the third letter r","r",n=3)

Multidimensional Penalized Splines for Survival and Net Survival Models

v1.5.1

GPL-3 | file LICENSE

Authors

Mathieu Fauvernier [aut, cre], Laurent Roche [aut], Laurent Remontet [aut], Zoe Uhry [ctb], Nadine Bossard [ctb]

Initial release