Hi Clement,
Depending on the analysis and outcome you are looking for you can definitely use both.
Tableau is specially useful for quickly plotting and assessing your data, including identification of outliers, without any programming skills. It has also forecasting algorithms and trend features that can be really helpful in a few clicks.
For something more robust then Python or R languages will be the recommendation, but again, depends on your specific case.
Best Regards,
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Joao Dias, MSc, PGDip, PSP, PMI-SP
Director, London UK
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