Dear all,
can enyone please tell me how to change the colour of the arrows of the
environmental variables when plotting a contrained ordination done in rda?
They are in blue, but i want black.
I've tried any possible combination I can think of in plot(), arrows(),
ordiplot() and plot.cca() and none of them would work.
Thanks in advance for your reply,
M.

-- 
Mariano Devoto
Cátedra de Botánica
Facultad de Agronomía de la U.B.A
Av. San Martín 4453
C1417DSE
C.A. de Buenos Aires
Argentina

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