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2011 Aug 20
0
help with nls fitting
Dear all,
I'm trying to fit the following function
slope_pp3_mrna = ( (k3 * v3_K_d *p1^v3_h) / ( (v3_Kd^v3_h) + p2^v3_h ) ) *
( 1/(1 + (p2/v4_Kd)^v4_h) ) - pp3_mrna
to this experimental data in the datafraeme "Data_pp3_mrna" (see it at the
end of this e-mail)
I'm using the nls function in the following code. IN the last step of the
fit "fm_pp3_mrna_4", when I add to the funziont the paramter v4_Kd something
goes wrong, and I reeive this message
Error in numericDeriv(form[[3L]], names(ind), env) :...