[R] Plm function, error in uniqval[as.character(effect), , drop = F]

Hi, there, I am trying to run a panel regression with a huge dataset, which has lots of missing values. Here is some description of all variables. > str(com3) Classes ‘plm.dim’ and 'data.frame': 172153 obs. of 30 variables: $ tic : Factor w/ 3435 levels "A","AA","AAC",..: 1 1 1

Re: [R] plm function & plm r.squared error

Dear Constanze, the error message gives you a hint, where the problem might be. The first error massage says that you have NAs in your index variables "Unit" and "Week". You can check that with the is.na() function. The second error message (r.squared) tells you to specify the model, that is

[R] plm function & plm r.squared error

  DearGiovanni,Congratulationsfor the truly helpful plm package! Being new to R, I have a problem with the plm function for financial markets timeseries data: After having defined a large, unbalanced panel pdata.frame (https://www.dropbox.com/s/2r9t1cu9v65gobk/Database_CN_2004.csv?dl=0)and runn

[R] plm function

age: 15 Date: Wed, 14 Mar 2012 13:46:03 +0200 From: Ieva Sriubait? To: r-help@R-project.org Subject: [R] plm function Message-ID: Content-Type: text/plain Dear Sir/ Madam, I am writing about the panel data for my bachelor degree. I would really appreciate if You could help dealing with

[R] plm function

Dear Sir/ Madam, I am writing about the panel data for my bachelor degree. I would really appreciate if You could help dealing with R functions. I am trying to estimate the panel data lm model with plm function. When i include 3dummy variables into the regression it dont appear in the sumarry of t