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st: levpet


From   Priya Nagaraj <priya23@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: levpet
Date   Sat, 25 Jul 2009 16:25:57 -0700 (PDT)

Hello,
 
I am trying to run levpet on my data. This is what I wrote
 
tsset firm year 
set tr on
levpet lnsales, free (lnlabor) proxy (lnfuel) capital (lnk_stock) revenue i(firm) t(year) reps(50) level(95)
 
This is the error I get with some part of the trace preceeding it.
 
    - capture assert int(`timevar')==`timevar'
            = capture assert int(year)==year
            - if _rc {
              di in red "time variable must contain only integer values"
              exit 451
              }
            - sort `panel' `timevar'
            = sort firm year
            - if "`panel'" != "" {
            = if "firm" != "" {
            - local bypfx "by `panel': "
            = local bypfx "by firm: "
            - }
            - if `"`format'"' != "" {
            = if `"%9.0g"' != "" {
            - format `timevar' `format'
            = format year %9.0g
            - }
            - tempname scdelta
            - mata: _TS_p_delta("`scdelta'", "`delta'", "`timevar'")
            = mata: _TS_p_delta("__00001R", "(__00001Q)", "year")
   _TS_p_delta_getnumb():  3499  strtoreal() not found
 _TS_p_delta_increment():     -  function returned error
           _TS_p_delta():     -  function returned error
                 <istmt>:     -  function returned error
            -------------------------------------------------------------------------------------------- end tsset ---
            }
          ---------------------------------------------------------------------------------------------- end xtset ---
          }
          else {

 Can somebody help me with this. I am not very conversant with Stata. I am using Stata 10.
 
Thnx
Priya



      

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