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...e-gcc-and-g-version (this link was sent by Harutyun Khachatryan). I changed the versions of gcc and g++ from 4.3 and 4.4 to 4.8 and 4.9 and it worked. I also posted the solution in the gist I've sent you before. Thank you all for your help, Mateusz. pon., 16 pa? 2017 o 01:19 u?ytkownik Petra Oleum <oleumpetra at gmail.com> napisa?: > Does your computer have the package `build-essential` installed? The > specific error you're getting is: > > ``` > checking whether the C compiler works... no > configure: error: in `/tmp/RtmpSv852d/R.INSTALL521c32e70e07/stringi'...

class("dat") is different from class(dat), which is what you actually want. On 17-11-17, P. Roberto Bakker wrote: > Hi everybody, > > Question: why are my dataframe and numeric variables a character? > > I read an excel file via readxl but my dataframe is a character, and > numeric variables, eg "yi", are also a character. > My excelfile is in English

Hello everyone, I installed R and trying to install additional package: `rgl`. The problem is, I keep getting this error: installation of package ?rgl? had non-zero exit status All warnings, installation log and R version info in available in my gist: https://gist.github.com/mateuszcisek/2337bd92695b7ddf10bca10ea403c712 (it was too long to use it all in the message). I use Linux Mint 18.2.

Hi everybody, Question: why are my dataframe and numeric variables a character? I read an excel file via readxl but my dataframe is a character, and numeric variables, eg "yi", are also a character. My excelfile is in English numeric Sometimes the dataframe was indeed a dataframe, but I do not know why it did sometimes. Thank you in advance, Roberto PS I used "guess". The

Does your computer have the package `build-essential` installed? The specific error you're getting is: ``` checking whether the C compiler works... no configure: error: in `/tmp/RtmpSv852d/R.INSTALL521c32e70e07/stringi': configure: error: C compiler cannot create executables See `config.log' for more details ``` --Petra On 15-10-17, Mateusz Cisek wrote: > Hello everyone, >