I would like to use the RunningMedian library and I have done it previously in IDE 1.0.5 but now I need to install it in my 1.8.6 and I can't get it to work.
I tried the instructions found on this page but the RunningMedian isn't available as a ZIP-file
The separate files can be found here and I have even tried downloading the separately and create my own ZIP-file but that didn't work either. As I remember it was a really useful library and it's a shame it's not available throught the regular library manager.
Even the guides found here only describes importin the ZIP-file manually.
extract the ZIP on your desktop, you will get an Arduino-master directory.
Go into this directory and find the relevant sub-directories you are interested into and move them from the Arduino-master/libraries folder into your standard Arduino library
Then you can trash what's left on your desktop from the Arduino-master directory and the Zip.