Able to run multi-line R cells in windows

[DonJayamanne]

Refs: #4576

• windows @rchiodo

Complexity: 3

Create Issue

Create Issue

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Running R multi-line cells in Notebooks will not work in windows.
Solution:

• Remove carriage returns from CRLF in lines from cells

Testing

• Install R (https://www.r-project.org/)
• Install R Kernel (see here https://irkernel.github.io/installation/)
• Install Jupyter extension
• Create an ipynb notebook
• Create a R cell with the following code

a <- "Hello World"
print(a)

• Run the cell & select the R kernel
• Verify the cell runs & output contains the text Hello World

[dbaeumer]

@DonJayamanne I install R (which was successful) but installing the R Kernel failed on my machine.

Error in IRkernel::installspec() : 
  jupyter-client has to be installed but “jupyter kernelspec --version” exited with code 127.
In addition: Warning message:
In system2("jupyter", c("kernelspec", "--version"), FALSE, FALSE) :
  '"jupyter"' not found
> 

Can you please find someone who has already the correct environment or let me know what I need to do to get this working.

[DonJayamanne]

@dbaeumer sure thing, please try the following (there are other ways to test, i thought this was the easiest):

• Install python
• Install jupyter using the following CLI
  • python -m pip install jupyter notebook
• Now try to re-install IRKernel (the above steps will ensure Jupyter is in the current path)

Can you please find someone who has already the correct environmen

Sure thing, pinging others in the team. Thanks

@DavidKutu @rchiodo @joyceerhl Please could one of you try this as well. Thanks

• Optionally you can use a docker container with R in it & connect to that remotely (this container supports R kernels jupyter/datascience-notebook)
  • docker run -p 8888:8888 jupyter/datascience-notebook
  • Look for URL & connect to that remotely.

[rchiodo]

Works for me. I can take the test plan item.

[dbaeumer]

@DonJayamanne thanks for the steps and @rchiodo thanks for taking the test plan item.

[rchiodo]

@DonJayamanne we remove our assignment after we're done testing.

[DonJayamanne]

@rchiodo You need to add verfied label if you have tested this & the last person on the list of testers.

I thought you meant it works for you as in, R kernel works for you and are able to test this item.

[DonJayamanne]

Ok, I think i'm mistaken here, i don't think we need verified label for test plan items.