search for: lgmaltformula

Displaying 1 result from an estimated 1 matches for "lgmaltformula".

2008 Sep 03
2
nls convergence trouble
...0.322 2592.90486 367.38460 17 0.0902 0.0021740 15950.322 2606.34599 367.06064 18 0.0902 0.0021740 15950.322 2639.54301 366.26053 19 0.0906 0.0021872 17835.817 3894.12224 336.57036 20 0.0906 0.0021872 17835.817 3950.35273 335.21289 21 0.0906 0.0021872 17835.817 3972.29367 334.68320 the model "LgmAltformula" is Qe ~ (V + b * m * a + C0 * V * b - ((C0 * V * b)^2 + 2 * C0 * b * V^2 - 2 * C0 * V * m * a * b^2 + V^2 + 2 * V * m * a * b + (b * m * a)^2)^(1/2))/(2 * b * m) the command in R is nls(formula=LgmAltFormula,data=bois.DATA,start=list(a=300,b=0.01),trace=TRUE ,control=nls.con...