[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

Re: [R] Help with a function and text

Thanks for that. Eliano 2013/3/7 David Winsemius [via R] > > On Mar 6, 2013, at 3:44 PM, Eliano wrote: > > > Thanks. Btw are you able to help with my issue? Thanks, Eliano > > I'm sorry, I was too busy answering the question from 'Eliano' over >

Re: [R] Help with a function and text

Thanks. Btw are you able to help with my issue? Thanks, Eliano Sent from my iPhone On 6 Mar 2013, at 23:41, "David Winsemius [via R]" < ml-node+s789695n4660547...@n4.nabble.com> wrote: On Mar 6, 2013, at 11:25 AM, Eliano Marques wrote: > Hi, can I understand why this m

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 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. > Test=rea

Re: [R] Sampling with Constraints for testing and training data

at i want to constraint the test data frame so the 20% of the size of "test" has 50% of DB$target. Imagine: n=100 DB$target = { 0=80 1=20} test=20 and contain 10 random values of DB$target=1 and 10 random values of DB$target=0. Many Thanks, Eliano -

[R] Sampling with Constraints for testing and training data

i want to constraint the test data frame so the 20% of the size of "test" has 50% of DB$target. Imagine: n=100 DB$target = { 0=80 1=20} test=20 and contain 10 random values of DB$target=1 and 10 random values of DB$target=0. Many Thanks, Eliano -- V

Re: [R] Solving Equations

Many Thanks David. 2012/1/22 David Winsemius [via R] > > On Jan 22, 2012, at 1:25 PM, Eliano wrote: > > > People, > > > > I'm researching some Bayesian statistic topics and in the midle of > > my study > > i found a very simple problem and i'm

Re: [R] Solving Equations

Many Thanks Berend. 2012/1/22 Berend Hasselman [via R] > > On 22-01-2012, at 19:25, Eliano wrote: > > > People, > > > > I'm researching some Bayesian statistic topics and in the midle of my > study > > i found a very simple problem and i'm trying t

[R] Solving Equations

ta)=a/(a+b) = 0,5 Var(teta)=ab/((a+b)^2(a+b+1))=0.05 So if i want to solve this to non-linear system to find a,b for the beta distribution wich pack should i use? I know that a=2 and b=2 because i calculated it. Can someone help? Thanks, Eliano -- View this message in context: http://r

[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

Re: [R] constrain min and max of output

Hi There, I have a similar problem. I have a function that i want to maximize. lets say: (x-2)^2+(y-4)^2 and i want to constraint that maximization to x+y<=5 I can program that constraints in R. Do you have any suggestion? Regards -- View this message in context: http://r.789695.n4.nabble.c

[R] Maximization

Regards, Eliano -- View this message in context: http://r.789695.n4.nabble.com/Maximization-tp3936359p3936359.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help P