[R] error message

[forkusam]

 Hi,
Can someone please tell me what such an error message
could mean. i.e where a problem must have arised.

Error in uniroot(function(n) eval(p.body) - power,
c(2, 1e+07)) : 
        f() values at end points not of opposite sign


Thank you
cilver

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Sylvie B. Forkusam
Eppelheimer Str.52/A2-5-2
69115 Heidelberg, Germany
Tel: (0049)-06221/346913
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