R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: i686-pc-linux-gnu (32-bit)

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> x <- array(list(4,'hot',5,'hot',3,'hot',4,'hot',5,'hot',3,'hot',7,'hot',5,'hot',6,'hot',3,'hot',2,'hot',4,'hot',5,'hot',2,'hot',3,'hot',6,'hot',4,'hot',4,'hot',6,'hot',2,'hot',3,'mild',5,'mild',4,'mild',2,'mild',7,'mild',1,'mild',4,'mild',4,'mild',7,'mild',4,'mild',3,'mild',3,'mild',3,'mild',3,'mild',2,'mild',5,'mild',5,'mild',3,'mild',6,'mild',2,'mild'),dim=c(2,40),dimnames=list(c('Score','Curry'),1:40))
>  y <- array(NA,dim=c(2,40),dimnames=list(c('Score','Curry'),1:40))
>  for (i in 1:dim(x)[1])
+  {
+  	for (j in 1:dim(x)[2])
+  	{
+  		y[i,j] <- as.numeric(x[i,j])
+  	}
+  }
There were 40 warnings (use warnings() to see them)
> par5 = ''
> par4 = ''
> par3 = '0'
> par2 = 'TRUE'
> par1 = 'grey'
> ylab = 'Degree Grade'
> xlab = 'Placement Student'
> main = 'Reddy-Moores Placement Data'
> postscript(file="/var/fisher/rcomp/tmp/1bx5b1384536248.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> par2<- as.logical(par2) # notches
> par3<-as.numeric(par3) # percentage trim
> if(par3>45){par3<-45;warning('trim limited to 45%')}
> if(par3<0){par3<-0;warning('negative trim makes no sense. Trim is zero.')}
> par4 <- as.numeric(par4) #factor column
> par5 <- as.numeric(par5) # response column
> x <- t(x)
> x1<-as.numeric(x[,par5]) # response
Error: (list) object cannot be coerced to type 'double'
Execution halted