[solved] Can't install any R package on Jupyter Lab notebook

 Interestingly I could install R packages from terminal sudo R

It turned out that the folder that Jupyter Lab R points to is different from what sudo R points to as well.

Eventually, to solve the problem, Martin wiped out my R installation directory. And probably it's a good idea for me not to install packages on sudo R but from notebook directly then.

[Solved]On JupyterHub's linux terminal, can't activate my conda environment

 

"To initialize your shell, run..." 

I ran "conda init bash" and restarted server but still couldn't solve the problem.

 

 

 

The solution from Kelvin:

in your ~/.bash_profile

add source activate root

right at the top

And then start a new linux terminal session

There was another R issue (see my next blog)

 

Save your mendeley files to a cloud folder / hard drive, select the sync folder

 Follow this instruction:

https://sites.google.com/a/mendeley.com/mendeley-training/home/learn/organize/file-organizer

[solved]Spotify won't start playing one song

 You may click on the play button of a song in an album but nothing happens.

This is a bug.

You can by pass by right clicking on the name of the song, Go to song radio, then play the song from the top of that radio list.

Then, click the song name to enter the song in its parental album.

Then click to play.

How to check the spam score of your email

 For MacOS Outlook client: right click on that message -> View Source, then you can find spam score in it.

A full tutorial is here:

https://kb.iu.edu/d/adix

remove double line breaks in word

use find and replace

^p^p means two consecutive line breaks

Replace that with ^p

Adobe acrobat X add rectangle

Click the gear icon on top

find the rectangle, click the "->" arrow to add it to the tool bar

in the tool bar click the red rectangle icon

draw a box at where you want to add the rectangle

red click -> property and adjust colors