[R] Package PLM

Hi Giovanni and Yves, My is Eliano Marques, i'm a master degree econometrician from ISEG in Portugal. I was trying to use your R package with a specific output i cannot get the same results that i'm getting in Stata. Could you please let me know if the below is correct or if i'm missing

Re: [R] Help with a function and text

Hi, can I understand why this message was rejected ? Thanks, Eliano Sent from my iPhone On 6 Mar 2013, at 19:18, Eliano eliano.m.marq...@gmail.com wrote: Hi everyone, I am writing some code to generate a function. I am passing that code to a dataset which i'm importing in R, e.g.

[R] Maximization Problem

Hi there, I need help in an optimization procedement. I'm trying to maximize the function fn=x^2+5y^2 with the restriction of fn1=x-y=5. I tried the genoud method and as well the alabama method. I have problems to set the constraint in R. Can someone help me please? Regards, Eliano