[R] Inverting integration

Suppose I have a function f(x) (say, f(x)=exp(sin(x)), how do I find the number y such that the integral of f(x) on the interval of (-infinity, y) is equal to a specified number, say, .8? Thanks, Yan [[alternative HTML version deleted]] __ R-h

[R] Fit a nonlinear regression model with power exponentially distributed errors

How to fit a nonlinear regression model with power exponentially distributed errors? I know gnlm has a function gnlr3 that could work, but I would be grateful if example R code is provided. Daniel [[alternative HTML version deleted]] __ R-help@

[R] nonlinear regression model to data with power exponential distributed errors

Hi, are you aware of any R packages that can fit a nonlinear regression model to a dataset with power exponential distributed random errors? Daniel __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posti