[R-sig-eco] How to replace NA values

[Chris Howden]

Bats.cast [is.na(Bats.cast)] <- 0

Or

Bats.cast [Bats.cast == NA] <- 0

Chris Howden B.Sc. (Hons) GStat.
Founding Partner
Evidence Based Strategic Development, IP Commercialisation and Innovation,
Data Analysis, Modelling and Training
(mobile) 0410 689 945
(skype) chris.howden
chris at trickysolutions.com.au




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-----Original Message-----
From: r-sig-ecology-bounces at r-project.org
[mailto:r-sig-ecology-bounces at r-project.org] On Behalf Of Bruce Miller
Sent: Sunday, 28 July 2013 11:14 PM
To: r-sig-ecology at r-project.org
Subject: [R-sig-eco] How to replace NA values

Hi all,

I am using reshape2 to reformat a data frame and all is great using:

Bats.melt <- melt(data = Bats)

Bats.cast <- dcast(data = Bats.melt, formula = Species ~ Location)

dput(Bats.cast,'C:/=Bat data working/Nica_new/Bats_niche.robj')

write.csv(Bat.cast,'C:/=Bat data working/Nica_new/test_Niche.csv')


The resulting file from both dput and write are great, however in order to
run another R analysis (new Gotelli EcosimR null models in R)  I need to
replace all the NA values in the output with a zero - 0 value.

I have just been opening this in Excel and using a simple find NA replace
with 0 and saving then reopening in R.

There must be a simple way to do this in R.

Any suggestions welcomed.



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