Data Prep Still Dominates Data Scientists’ Time, Survey Finds by Alex Woodie via @datanami

Data scientists spend about 45% of their time on data preparation tasks, including loading and cleaning data, according to a survey of data scientists conducted by Anaconda. The company also analyzed the gap between what data scientists learn as students, and what the enterprises demand.

Yes, it does take time, but if you prepare your data right then the results will be good.