Re: [R] two term exponential model

2005-08-09 Thread Prof Brian Ripley
On Mon, 8 Aug 2005, Deming Mi wrote: Does anybody know if there is an R function (package) to fit a two-terms exponential model like y = a*exp(bx) + c*exp(dx) where y is dependent variable and x is independent variable. MATLAB has a Curve Fitting Toolbox to implement this fitting, but I

Re: [R] two term exponential model

2005-08-09 Thread Ted Harding
On 09-Aug-05 Prof Brian Ripley wrote: On Mon, 8 Aug 2005, Deming Mi wrote: Does anybody know if there is an R function (package) to fit a two-terms exponential model like y = a*exp(bx) + c*exp(dx) where y is dependent variable and x is independent variable. MATLAB has a Curve Fitting

[R] two term exponential model

2005-08-08 Thread Deming Mi
Dear R users, Does anybody know if there is an R function (package) to fit a two-terms exponential model like y = a*exp(bx) + c*exp(dx) where y is dependent variable and x is independent variable. MATLAB has a Curve Fitting Toolbox to implement this fitting, but I don't know if there is an R