[R] Find the first values in vector

[baptiste auguie]

Hi,

One way would be,

vec[ cumsum(!vec)==0 ]

HTH,

baptiste

2009/11/9 Grzes <gregorio99 at gmail.com>:
>
> Hi !
> I have a vector:
> vec= TRUE  TRUE  TRUE  TRUE FALSE FALSE FALSE FALSE TRUE  TRUE  FALSE
> and I'm looking for a method which let me get only the first values equal
> TRUE from this vector. It means that I want to get a vector:
> vec_out =  TRUE  TRUE  TRUE  TRUE
>
> or posictions values = TRUE: vec_out = 1,2,3,4
> --
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