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quantalfred · Jun 11th, 2005, 1:13 PM

Is there any difference between "=" and "<-"?

Say if I want to set x to 5, I can write x=5, or x<-5.

Now if I want to add 5 to x, I can write x=x+5 or x<-x+5.

So could I just use "=" instead of "<-" in all cases? Or is there any reason for using "<-" instead of "="?

Gilward Kukel · Jun 11th, 2005, 3:17 PM

In the help files they say:

Quote:

The operators <- and = assign into the environment in which they are evaluated. The <- can be used anywhere, but the = is only allowed at the top level (that is, in the complete expression typed by the user) or as one of the subexpressions in a braced list of expressions.

But I don't know what it means.

quantalfred · Jun 12th, 2005, 11:09 AM

Me either. I think an example may help.

Jun 11th, 2005, 1:13 PM	#1
quantalfred Newbie Join Date: Jan 2005 Posts: 21 Rep Power: 0	A question on R/Splus Is there any difference between "=" and "<-"? Say if I want to set x to 5, I can write x=5, or x<-5. Now if I want to add 5 to x, I can write x=x+5 or x<-x+5. So could I just use "=" instead of "<-" in all cases? Or is there any reason for using "<-" instead of "="?

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Jun 12th, 2005, 11:09 AM	#3
quantalfred Newbie Join Date: Jan 2005 Posts: 21 Rep Power: 0	Me either. I think an example may help.

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