gravity
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R package that provides estimation methods for Gravity Models
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gravity issues
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Hi! Sorry, I am trying to install the package but I get this error: installation of package had non-zero exit status I updated and restarted R Studio I tried different...
Mauricio, the [gravity](https://CRAN.R-project.org/package=gravity) for which you took over maintenance got archived on CRAN a couple of days ago because an e-mail was not deliverable to the maintainer address. It would...
Hi, I'm using the ppml. When I use the ppml with the robust estimation, I get the correct values if I print the values below. But if I use the...