
Hello to everyone, 
I would like to put the variable names in the x-axis of this plot instead of number 1:63:

plotCI(1:num_col_comp,med,2.06*des/sqrt(n),lwd=1,col="red",scol="seashell4",main="Intervalo de confianza",xlab="Variables clínicas",ylab="Intervalo de confianza")abline(h=0, col="yellowgreen",lwd=1.8)

I don't find the way to do it, I tried with xlab option but it doesn't work and I tried as well creatting a data.frame with the rownames of the variables and the values 1:63
Any idea will be very appreciated
Thanks a lot
An example of the data set could be:y<-runif(10)
 err<-runif(10)
 plotCI(1:10,y,err,main="Basic plotCI")
 plotCI(1:10,y,err,2*err,lwd=2,col="red",scol="blue",
  main="Add colors to the points and error bars")
 		 	   		  
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