[R] Correlation matrix one side with significance

[Henrique Dallazuanna]

Try this:

On 05/03/2008, Martin Kaffanke <technik at roomandspace.com> wrote:
> Hi there!
>
>  In my case,
>
>  cor(d[1:20])
>
>  makes me a good correlation matrix.
>
>  Now I'd like to have it one sided, means only the left bottom side to be
>  printed (the others are the same) and I'd like to have * where the
>  p-value is lower than 0.05 and ** lower than 0.01.
>
>  How can I do this?

d <- matrix(rexp(16, 2), 4)
corr <- cor(d)
sign <- symnum(cor(d), cutpoints=c(0.05, 0.01), corr = T,
symbols=c("***", "**", "*"), abbr=T, diag=F)

noquote(mapply(function(x, y)paste(x, format(y, dig=3), sep=''),
as.data.frame(unclass(sign)), as.data.frame(corr)))



>  And another thing: Is there a way to output that table as a latex table?

See ?latex function in Hmisc package and also xtable package

>  Thanks,
>  Martin
>
>
>  --
>  Ihr Partner für Webdesign, Webapplikationen und Webspace.
>  http://www.roomandspace.com/
>  Martin Kaffanke +43 650 4514224
>
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>
>
>


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O