Re: [R] Minimization/Optimization under functional constraints

You can use the DEoptim function in DEoptim package and to include a line of code within your objective function that assigns a very high value when the constraints are not satisfied. I have tried that and it works. - Juan David Ospina Arango School of Statistics Universidad Nacional de Colo

Re: [R] plot probability density function (pdf)

x11() plot(density(a)) lines(density(d)) x11() plot(density(b)) lines(density(e)) 2011/10/12 pigpigmeow [via R] : > however, if i have an excel file, but there have 6 variables, a,b,c,d,e,f. > > > how to plot the probability density function of a and d in one graph, b and > e in another graph? > >

Re: [R] plot probability density function (pdf)

x=rnorm(100,1,0.8) # A series. y=rnorm(100,0,0.5) # Another series with different mean and variance. plot(density(x),ylim=c(0,1)) lines(density(y),col="red") Remember that density() is a nonparametric estimator. You should properly choose the bandwith. -- View this message in context: http://r.

Re: [R] The use of period in function names and variable names

Hello. Not at all in the way you have shown. Just to improve your code "readability", try to avoid naming your variables beginning with period (example: .hello). In contrast with Matlab (for example) the period in R is not to have access to an object property. -- View this message in context: h