[R] if confusion

[Erik Iverson]

This is because you could imagine a program like the following:

tclass <-  "Testing 1 2 3"
if(tclass == "Testing 1 2 3")
{
    cat("Testing", tclass, "\n")
}

cat("more stuff")

However, in your program, the next line is "else", which is not a command you can just put in the middle of your program. 

The solution is :

tclass <-  "Testing 1 2 3"
if(tclass == "Testing 1 2 3")
{
    cat("Testing", tclass, "\n")
} else {
    cat(tclass, "\n")
}

Erik 

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of rkevinburton at charter.net
Sent: Monday, August 03, 2009 3:41 PM
To: r-help at r-project.org
Subject: [R] if confusion

Simple question:

Why doesn't the following work? Or what 'R' rule am I missing?

tclass <-  "Testing 1 2 3"
if(tclass == "Testing 1 2 3")
{
    cat("Testing", tclass, "\n")
}
else
{
    cat(tclass, "\n")
}

I get an error 'else' is unexpected.

Thank you.

Kevin

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