3, 2009 8:41 AM
> To: r-help@r-project.org
> Subject: [R] Replace values in a vector
>
> Hi all,
>
> I have a vector like this:
>
> x<- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8)
>
> I would like to replace the zero values with the first
> previous non
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Farida Mostajabi
> Sent: Thursday, December 03, 2009 8:41 AM
> To: r-help@r-project.org
> Subject: [R] Replace values in a vector
>
> Hi all,
>
WOW! It worked. Thank you!
>>> Gabor Grothendieck 12/03/09 11:46 AM >>>
na.locf in the zoo package takes the last occurrence and carries it forward
into NAs so replace your zeros with NAs and then apply na.locf like this:
library(zoo)
na.locf(replace(x, x==0, NA))
On Thu, Dec 3, 2009 at
na.locf in the zoo package takes the last occurrence and carries it forward
into NAs so replace your zeros with NAs and then apply na.locf like this:
library(zoo)
na.locf(replace(x, x==0, NA))
On Thu, Dec 3, 2009 at 11:41 AM, Farida Mostajabi
wrote:
> Hi all,
>
> I have a vector like this
Hi all,
I have a vector like this:
x<- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8)
I would like to replace the zero values with the first previous non zero value.
my returning vector should look like this:
y<-c( 0.7, 0.1, 0.1,0.2,0.2,0.2,0.2,0.2, 0.4, 0.4, 0.8, 1.8)
How can I do
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