Visualise Spark DataFrames using scala -

i'm working dataframes using spark/scala (not pyspark) , have df looks follow:

**variable** | **ratio**         | 0.5 b        | 0.2 

i searched everywhere can't seem find way plot df histogram. notice i'm using linux machine via ssh don't have ui, , need save result png/jpeg.

i found it's possible use zeppelin said, don't have acces ui, code written using scala it's not possible me start on using python.