[R] Selecting all values smaller than X in a dataframe

Christoph Scherber Christoph.Scherber at agr.uni-goettingen.de
Mon Jun 11 14:09:45 CEST 2007


Dear R users,

I have a correlation matrix for a dataframe called "synth", for which I 
now want to select only those cells that have correlations larger than 
+/-0.6:

synth=data.frame(x=rnorm(10,1),y=rnorm(10,2),z=rnorm(10,0.5))

w=cor(synth,use="pairwise.complete.obs")
w=as.data.frame(w)
w[,sapply(w,abs(w),">",0.6)]

The problem is that using sapply with ">" or "<" doesn´t seem to work.

How could I solve this problem?

Thank you very much in advance for your help!

Best wishes
Christoph

(I am using R 2.5.0 on Windows XP).



--
Christoph Scherber
DNPW, Agroecology
University of Goettingen
Waldweg 26
D-37073 Goettingen

+49-(0)551-39-8807



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