[R-es] Error Minfactor

2021-10-10 Thread william felipe campos perez
Buenas tardes, presento inconvenientes ajustar el modelo de crecimiento de Gompertz, le doy unos valores iniciales y me arroja el siguiente error: Warning message: In nls(IPA ~ (b0 * MC * log(b1/MC)), data = datos, start = list(b0 = 0.06, : step factor 0.000488281 reduced below 'minFactor' of

Re: [R] assumptions about how things are done

2021-10-10 Thread Rolf Turner
On Sun, 10 Oct 2021 19:27:27 +1300 "Richard O'Keefe" wrote: > Why is it so hard to understand that there is nothing special to > understand here? Fortune nomination. cheers, Rolf -- Honorary Research Fellow Department of Statistics University of Auckland Phone: +64-9-373-7599 ext.

Re: [R] assumptions about how things are done

2021-10-10 Thread Greg Minshall
hi, Richard, > ifelse(..., ..., ...) is not a control structure. It is not special > syntax. It is a normal function call, and it evaluates its arguments > and expands them to a common length just like "+" or, more to the > point, just like "&". > > So why do we have people expecting a normal

Re: [R] assumptions about how things are done

2021-10-10 Thread Richard O'Keefe
Colour me confused. if (...) { ... } else { ... } is a control structure. It requires the test to evaluate to a single logical value, then it evaluates one choice completely and the other not at all. It is special syntax. ifelse(..., ..., ...) is not a control structure. It is not special