Hello forum,
I am using R to do some Exploratory analysis on my data resulting in the
following 4 plots. #1- Histogram of the variable; #2- Kernel density
estimation of the variable; #3- Normal Q-Q plot ; #4- Box-plot of the
variable.
The error message comes in when i try to plot # 2 above when there are
missing values in a specific column.
For other subjects with non missing values in each variable, i can plot
using the code and then i can proceeed to the other plots using the code
below:
The code is as follows:
Chair002OD<-read.csv("Chair002OD.csv", header=TRUE)
attach(Chair002OD)
names(Chair002OD)
oldpar<-par(mfrow=c(2,2),oma=c(0,0,2,0)
0.1)
truehist(SDANN5mins,SDANN5mins="FD",col="blue",main="Histogram
of
SDANN5mins",
ylab="Frequency",prob=FALSE)
box()
plot(density(SDANN5mins,lwd=1, main="Density estimation",font.main=1)
rug()
Error in density.default(SDANN5mins) : 'x' contains missing values
If there are no missing values, i can proceed with getting all 4 plots
as needed.
If i use na.action=na.omit, where do i put this
for example:
plot(density(SDANN5mins,lwd=1, main="Density
estimation",font.main=1,na.action=na.omit)
Any help would be appreciated.
Thanks.
MAA
Doctoral candidate
Newcastle University
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