[R] command to change some vars to missing into my dataset

[Rui Barradas]

Hello,

What type of data do you have? A vector? Or is it a matrix, a 
data.frame, a list, etc?

Suppose it is a vector named x. Then you could do something like

rate <- 0.2
is.na(x) <- sample(length(x), rate*length(x))

At an R prompt type

?is.na
?sample

Hope this helps,

Rui Barradas

Às 21:28 de 05-07-2018, Adam Z. Jabir escreveu:
> Hi,
> 
> I want to simulate missing at random for my dataset. Do you know an easy way to do it?
> 
> I want to try not to have the missing�s for the same observations. I mean if one observation is been selected randomly to have missing I don�t want to have all the var of the same obs missing.
> 
> I want to be able to choose rate of missing that should be applied.
> 
> Thanks,
> 
> Adam
> 
> 
> Envoy� � partir de Outlook<http://aka.ms/weboutlook>
> 
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> 
> 
> 
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