olemus
andmevalmenduse osa,
toorandmete viimine edasiseks töötluseks
sobivamale toorkujule, sealhulgas andmeüksuste
ühendamine, mestimine, normaliseerimine,
filtreerimine, visualiseerimine
=
the process of gathering, selecting, and transforming data to make them more accessible and easier to analyze

ülevaateid
https://en.wikipedia.org/wiki/Data_wrangling

http://www.datawatch.com/what-is-data-wrangling/

https://www.springboard.com/blog/data-wrangling/

http://cs.brown.edu/courses/cs195w/slides/datawrangling.pdf

https://www.bankingtech.com/files/2017/10/Trifacta_Principles-of-Data-Wrangling.pdf

https://rstudio.com/wp-content/uploads/2015/02/data-wrangling-cheatsheet.pdf