[R] nonlinear equation solver?
spencer.graves at pdf.com
Mon Apr 21 16:52:04 CEST 2003
You may also wise to consider a book on nonlinear regression such as
Bates and Watts (1988) Nonlinear Regression Analysis and Its
hope this helps. spencer graves
Murray Jorgensen wrote:
> For this equation you are out of luck as log(z) < z for all positive z's
> (such as t^2). More generally you should consult a numerical analysis
> textbook for advice on the solution of nonlinear equations. There you
> will read about many algorithms in common use by statisticians.
> Murray Jorgensen
> Wang, Zhu wrote:
>> Dear R-Help,
>> I am trying to use R to solve a nonlinear equation many times for
>> different values. I am looking for a mathematical nonlinear equation
>> solution which may not have a closed solution form. For example, I
>> have equation:
>> 2 = (t^2)/log(t)
>> What is t?
>> I am wondering how to solve it in R.
>> Many thanks,
>> Zhu Wang
>> Statistical Science Department
>> R-help at stat.math.ethz.ch mailing list
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