puzzled with plotmath for matrix indices

Claudia,

Mittelhessen! ;-)

thanks & viele Gr??e nach Oberhessen :-)

plot (1, 1, ylab = expression (Z[list(i,i)]))

though that cannot be evaluated, either (due to [ not knowing what to do
with an index list)

Something is missing; this last sentence of yours appears to be not 
complete, does it?


Regarding Uwe's remark and Peter's nice aesthetic suggestion:

plot( 1, 1, xlab = substitute( Z[list(~i, j)], list( i = 1, j = 2)))

should solve both "problems".

This does work even in R as old as 2.7.1 (and, of course, for a more 
recent version as Uwe already stated).

  Best regards / Beste Gr??e  --  Gerrit