R version 2.10.1 (2009-12-14)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> x <- c(111,102,108,109,118,79,88,102,105,92,131,104,83,84,85,110,121,120,100,94,89,93,128,84,127,106,129,82,106,109,91,111,105,118,103,101,101,95,108,95,98,82,100,100,107,95,97,93,81,89,111,95,106,83,81,115,112,92,85,95,115,91,107,102,86,96,114,105,82,120,88,90,85,106,109,75,91,96,108,86,98,99,95,88,111,103,107,118)
> par1 = '20'
> xlab = 'IQ Score'
> main = 'Child's IQ'
Error: unexpected symbol in "main = 'Child's"
Execution halted