Access to clear and open market data. You will need to create an account - https://data.world/community/open-community/
Lots of datasets for research
Datasets for Research in Social Sciences and Datasets for Health and STEMM have links to lots of sources for data.
The first pages have information and assistance for using datasets, including analysis and visualisation. The remainder of the pages provide links to and descriptions of quality websites with datasets in various subject areas.
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