Hi
I would like to know how to pivot a table that will sum the number of plants
(a or b) for each location (x,y,z)
I have read on the listserve similar questions but which involve summing up
numbers rather than factors.  I have also read about the R package reshape
on the listserve but wanted to know if there's a way to do it easily without
the package
Thanks for the help!

location  plant
 x             a
 x             b
 x             b
 y             b
 y             b
 y             a
 z             a
 z             a

into a table like this


       x            y           z
a     1            1           2
b     2            2           0

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