[R] Question about ifelse() XXXX

[William Dunlap]

What is the value of
  diag(c1) - 1
?

(Or, use digits=16 when printing c1.)

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf
> Of Dan Abner
> Sent: Monday, December 02, 2013 11:09 AM
> To: r-help at r-project.org
> Subject: [R] Question about ifelse() XXXX
> 
>  Hi all,
> 
> Can anyone explain what is happening with element 4,4 of c1? ifelse()
> is not recongizing it as value 1:
> 
> > c1
>           q1        q2        q3        q4
> q1 1.0000000 0.6668711 0.6948419 0.5758860
> q2 0.6668711 1.0000000 0.6040746 0.4917447
> q3 0.6948419 0.6040746 1.0000000 0.4730732
> q4 0.5758860 0.4917447 0.4730732 1.0000000
> > ifelse(c1==1,1,0)
>    q1 q2 q3 q4
> q1  1  0  0  0
> q2  0  1  0  0
> q3  0  0  1  0
> q4  0  0  0  0
> > c1[4,4]
> [1] 1
> 
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