Thank you very much!
I guess I need a new dictionary!
Ales Ziberna
----- Original Message -----
From: "Uwe Ligges" <[EMAIL PROTECTED]>
To: "Aleš Žiberna" <[EMAIL PROTECTED]>
Cc: "R-help" <r-help@stat.math.ethz.ch>
Sent: Tuesday, January 11, 2005 12:47 PM
Subject: Re: [R] Changes in expression in R 2.0.1
Aleš Žiberna wrote:
> Hello!
>
>
>
> plot(1:10,main=expression(1 <= "m" <= 5))
>
> The above command works perfectly in R 1.9.1 but returns an error in R
> 2.0.1
>
>
>
> This is documented in NEWS for R 2.0.0 (or ONEWS in R 2.0.1) and it is
> said:
>
> o R no longer accepts associative use of relational operators.
> That is, 3 < 2 < 1 (which used to evalute as TRUE!) now causes
> a syntax error. If this breaks existing code, just add
> parentheses -- or braces in the case of plotmath.
>
>
>
> It is true that the following command does not give en error, however, I
> do
> not what the extra brackets in the plot:
>
> plot(1:10,main=expression(1 <= ("m" <= 5)))
>
>
>
> Is it possible to have this thing plotted with the same look as in R
> 1.9.1?
> I apologize if the instruction are in NEWS, since I am not sure how to
> interpret exactly this section (especially : "just add parentheses -- or
> braces in the case of plotmath".
A good dictionary should tell you that {} rather than () is meant with
"braces":
plot(1:10,main=expression(1 <= {"m" <= 5}))
You have to group it syntactically, that's all.
Uwe Ligges
>
>
> Thank you in advance for any replies!
>
> Ales Ziberna
>
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