rmongodb | R driver for MongoDB | DB Client library
kandi X-RAY | rmongodb Summary
kandi X-RAY | rmongodb Summary
This is an R extension supporting access to MongoDB. After cloning the repo, drop mongo-c-driver's src directory into rmongodb/rmongodb/src. Alternately, unpack mongo-c-driver-src.zip into rmongodb/rmongodb/src.
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QUESTION
I have been trying to list collections within a mongo database in R.
I have realized that this feature is still in the to do list in the mongolite package (https://github.com/jeroen/mongolite/issues/86). There seemed to be a package, rmongodb
, which did the trick (Unable to see all collections from a mongodb remote server using mongolite). However, it is no longer a part of CRAN.
Can anyone, please, suggest a way to list all collection in a database?
The mongodb is remote, so I guess using the mongoshell with combination with system()
is not an option. At least not a straightforward one.
Thanks
...ANSWER
Answered 2018-Jun-19 at 14:01The solution I came up with is the following:
QUESTION
I have an R package with a list of imports and have never had a problem loading the latest version. I have just added data.table
to the list, and now cannot load the package.
OS : macOS Sierra 10.12.5/6
gcc :
...ANSWER
Answered 2017-Oct-12 at 12:34I had the same issue yesterday and after some googling I managed to install data.table
by specifying ~./R/Makevars.
In my case I used macports and installed gcc7. Which under macports are referenced by gcc-mp-7 and g++-mp-7
So to specify the compiler to use these instead of the default clang on macOS you need to create a file ~./R/Makevars . Then add the following lines:
CC=gcc-mp-7 -fopenmp
CXX=g++-mp-7 -fopenmp
You should also be able to do the same with newer versions of clang
just change the gcc-mp-7
to clang-omp
(or something equivalent depending on where it's installed) and don't forget the same -fopenmp
flag in order to enable multi threading.
QUESTION
I extracted some data from a mongo database using the RMongo library. I have been working with the data with no problem. However, I need to access a field that was saved, originally in the database, as JSON. Since rmongodb saves the data as data frame, I now have a large character vector of length 1:
...ANSWER
Answered 2017-Feb-28 at 14:13Starting from
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