[R] Apply acf to data frame containing 'NA'

[arun]

Hi,
May be this helps:
set.seed(24)
A <- matrix(sample(c(NA,rnorm(1500)),1500,replace=FALSE),nrow=500)
par(mfrow=c(ncol(A),1))
 lapply(split(A,col(A)),function(x) acf(na.omit(x)))
A.K.




----- Original Message -----
From: Zilefac Elvis <zilefacelvis at yahoo.com>
To: "r-help at r-project.org" <r-help at r-project.org>
Cc: 
Sent: Sunday, June 23, 2013 1:29 PM
Subject: [R] Apply acf  to data frame containing 'NA'

Hi,
I have a data frame with each column representing a separate site.
Following this code, I can apply acf to all columns in A. 'A' contains randomly generated data.

A <- matrix(rnorm(1500),nrow=500)
par(mfrow=c(ncol(A),1))

lapply(split(A,col(A)), acf)

#OR
lapply(split(A,col(A)), function(snow) acf(snow, lag.max=5))


Problem: Some of my data contains 'NA' in some of the columns. I get this error
"Error in na.fail.default(as.ts(x)) : missing values in object"
How can I resolve this problem?

Thanks.
AE.
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