R help - Aug 2019 - Error exporting dataframe from Julia to R with Feather

Hello,

since I am encountering a lot of problems exporting dataframes from
julia to R (there is always something wrong with the formatting,
probably a missing quote) so I am trying to use Feather to do the job.

I have installed Feather in Julia with `pkg.add("Feather")` and
imported it with `using Feather`. I created a dataframe and saved it
with `Feather.write("/dir/dataframe.feather", df)` and it worked. I
can even open it back with `df Feather.read("/dir/dataframe.feather")`
and get: `julia> nrow(df)
128544`.
The problem is with R. I am using Rstudio to test each step.
I installed the package, imported it with `library(feather)` and used it as:
```
df = read_feather("/dir/dataframe.feather")
```
and then Rstudio simply crashes.
any idea why?
Thank you

You may have to contact RStudio about this. RStudio is a separate IDE
independent of R -- i.e. developed and maintained by a separate
organization from the R project.

Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Thu, Aug 8, 2019 at 7:08 AM Luigi Marongiu <marongiu.luigi at
gmail.com>
wrote:
> Hello,
>
> since I am encountering a lot of problems exporting dataframes from
> julia to R (there is always something wrong with the formatting,
> probably a missing quote) so I am trying to use Feather to do the job.
>
> I have installed Feather in Julia with `pkg.add("Feather")` and
> imported it with `using Feather`. I created a dataframe and saved it
> with `Feather.write("/dir/dataframe.feather", df)` and it worked.
I
> can even open it back with `df >
Feather.read("/dir/dataframe.feather")` and get: `julia> nrow(df)
> 128544`.
> The problem is with R. I am using Rstudio to test each step.
> I installed the package, imported it with `library(feather)` and used it
> as:
> ```
> df = read_feather("/dir/dataframe.feather")
> ```
> and then Rstudio simply crashes.
> any idea why?
> Thank you
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
	[[alternative HTML version deleted]]

Alternatively, try running your example from plain R (in a terminal, R.app, or
Rgui, depending on your platform), and see if the problem occurs without RStudio
in the equation. If it does, then the feather package probably owns the problem.

-pd
> On 8 Aug 2019, at 16:34 , Bert Gunter <bgunter.4567 at gmail.com>
wrote:
> 
> You may have to contact RStudio about this. RStudio is a separate IDE
> independent of R -- i.e. developed and maintained by a separate
> organization from the R project.
> 
> Bert Gunter
> 
> "The trouble with having an open mind is that people keep coming along
and
> sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip
)
> 
> 
> On Thu, Aug 8, 2019 at 7:08 AM Luigi Marongiu <marongiu.luigi at
gmail.com>
> wrote:
> 
>> Hello,
>> 
>> since I am encountering a lot of problems exporting dataframes from
>> julia to R (there is always something wrong with the formatting,
>> probably a missing quote) so I am trying to use Feather to do the job.
>> 
>> I have installed Feather in Julia with `pkg.add("Feather")`
and
>> imported it with `using Feather`. I created a dataframe and saved it
>> with `Feather.write("/dir/dataframe.feather", df)` and it
worked. I
>> can even open it back with `df >>
Feather.read("/dir/dataframe.feather")` and get: `julia> nrow(df)
>> 128544`.
>> The problem is with R. I am using Rstudio to test each step.
>> I installed the package, imported it with `library(feather)` and used
it
>> as:
>> ```
>> df = read_feather("/dir/dataframe.feather")
>> ```
>> and then Rstudio simply crashes.
>> any idea why?
>> Thank you
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com