CODEWITHSUNDEEP
r
Angelo
Angelo

Reputation: 5069

Special characters in R language

I have a table, which looks like this:

1β              2β     
1.0199e-01        2.2545e-01       
2.5303e-01        6.5301e-01
1.2151e+00        1.1490e+00

and so on...

I want to make a boxplot of this data. The commands I am using is this:

pdf('rtest.pdf')
 w1<-read.table("data_CMR",header=T)
 w2<-read.table("data_C",header=T)
boxplot(w1[,], w2[,], w3[,],outline=FALSE,names=c(colnames(w1),colnames(w2),colnames(w3)))
dev.off()

The problem is instead of symbol beta (β), I get two dots (..) in the output.

Any suggestions, to solve this problem.

Thank you in advance.

Upvotes: 5

Views: 2099

Answers (3)

Angelo
Angelo

Reputation: 5069

This also works

pdf('rtest.pdf')
w1<-read.table("data_CMR",header=T) 
w2<-read.table("data_C",header=T) 
one<-expression(paste("1", beta,sep="")) 
two <- expression(paste("2", beta,sep="")) 
boxplot(w1[,], w2[,], w3[,],outline=FALSE, names=c(one,two)) 
dev.off()

Upvotes: 3

IRTFM
IRTFM

Reputation: 263461

The suggestion to use check.names will prevent the appending of "X" to the "1β" and "2β" which would otherwise occur even once the encoding is sorted out (since column names are not supposed to start with numbers. (One could also have just used the"names" argument to boxplot.)

w1<-read.table(text="1β              2β     
 1.0199e-01        2.2545e-01       
 2.5303e-01        6.5301e-01
 1.2151e+00        1.1490e+00",header=TRUE, check.names=FALSE, fileEncoding="UTF-8")
boxplot(w1)

enter image description here

Upvotes: 4

nograpes
nograpes

Reputation: 18323

This could be an encoding problem. Try adding encoding='UTF-8' to your read.table statements.

w1<-read.table("data_CMR",header=T,encoding='UTF-8')

Upvotes: 0

Related Questions