plm package
Kirsten:
additionally to the question below, how I can get data into the pdata.frame format, I have another question: Why doen't R recognize the function plm.data (), when calling it? I did load the plm library before...
I suspect that you have an outdated version of "plm" and possibly R as well. (You don't supply either version although the posting guide asks you to.) plm version 1.0-1 is current. The function pdata.frame() was removed and part of its functionality moved to the function plm.data() (in version 0.2-2, I think). For a discussion, see the Journal of Statistical Software paper by the authors of the plm package: Yves Croissant, Giovanni Millo Panel Data Econometrics in R: The plm Package http://www.jstatsoft.org/v27/i02/ Best, Z
Greetz, Kirsten How do I actually manage to get data into the pdata.frame format? i.e. how do I declare id and time? I already tried various things and got even more error messages. for example
country <- c("AGO","BWA","DRC","LSO","MDG","MWI","MUS","MOZ","NAM","SYC","ZAF","SWZ","TZA","ZMB","ZWE")
time1 <- c(1991:2006)
pdata.frame(EMPR1,id=country,time=time1)
serie SYC is NA and has been removed
Fehler in (function(x, i) if (is.matrix(i)) as.matrix(x)[[i]] else .subset2(x, :
rekursives Indizieren auf Level 2 fehlgeschlagen
where EMPR is a data.frame with 16 rows (time) and 15 columns (countries).
Thank you,
Kirsten
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