[R] greek characters in Figures

Alaios alaios at yahoo.com
Mon May 2 19:32:34 CEST 2016

Dear all,I am trying to write in my Figure labels short equations that contain greek characters

For example:  C(h) = sigma^2 * rho(h).   

I am googling it and there are many packages available but unfortunately they do not look available for my 3.2.4 latex version

install.packages("latex2expr")Installiere Paket nach ‘/home/apa/R/x86_64-pc-linux-gnu-library/3.2’(da ‘lib’ nicht spezifiziert)Warnung: kann nicht auf den Index für das Repository https://cran.cnr.Berkeley.edu/src/contrib zugreifen:  nicht unterstütztes URL SchemaWarnmeldung:Paket ‘latex2expr’ ist nicht verfügbar (for R version 3.2.4 Revised) 

Any ideas what else I can try?I would like to thank you in advance for your replyRegardsAlex
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