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dilomaaethiops
2011 Sep 05
1
Dealing with NA's in a data matrix
...p up.... please help me to get
around this problem. Thanks in advance.
Location Dist. Size
low1 .5 10.5
low2 .5 23
low3 .5 NA
low4 .5 NA
mid1 3 15
mid2 3 11.5
mid3 3 15
mid4 3 NA
high1 6 12.5
high2 6 20
high3 6 21
high4 6 22
wall1 10 13
wall2 10 12.5
wall3 10 13
wall4 10 12
d<-read.table("dilomaaethiops.txt",header=T)
d
str(d)
range(d$Dist.)
s<-d$Size
range(s)
s[s<.1]<-NA
range(s,na.rm=T)
summary(d)
length(s)
length(d$Dist.)
plot(s~d$Dist.,xlab="Distance from Shoreline (m)",ylab="D. aethiops Size
(mm)", pch=7)
a1<-glm(s~d$Dist.,family="quasipoisson",...