Look at the 'na.locf' function in the 'zoo' package.
On Fri, May 6, 2011 at 5:29 PM, Nick Manginelli <themang99 at yahoo.com>
wrote:> I'm using the survey api. I am taking 1000 samples of size of 100 and
replacing 20 of those values with missing values. Im trying to use sequential
hot deck imputation, and thus I am trying to figure out how to replace missing
values with the value before it. Other things I have to keep in mind is if there
are two missing values side by side, how do I replace both those values with the
value before. Also if the first of the sample of 100 is a missing value? I will
replace that with the mean of the population. Im pretty sure I have to write a
loop, but if anyone can help me figuring how to write this I would appreciate it
greatly. Thank you
>
> Nick Manginelli
> ? ? ? ?[[alternative HTML version deleted]]
>
>
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--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?