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R: how to visualize categorical data?

What are some tools data scientist can use to visualize data during the process of data analysis?

  • Note: I'm interested in the tools one can use to quickly analyse data during the process of analysis (not after it, when proper presentation is required).

  • Answer:

    Weka http://www.cs.waikato.ac.nz/ml/weka/ has got facility to visualize the data before you apply any preprocesing/model to it, as well at any stage during the process. You can also use python's matplotlib or R's ggplot if you are using these tools.

Muktabh Mayank at Quora Visit the source

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For simple stuff ggplot2 or matplotlib is fine. For more fancy things mayavi: http://code.enthought.com/projects/mayavi/#Mayavi I'd use any of those inside of an IPython notbook for rapid prototyping.

Martin Krämer

I'd suggest just using IPython notebooks and make use of matplotlib. You then have the added bonus of documenting your exploration in a notebook. I suppose I should now refer you to Jupyter but I've not made the leap to Python 3 yet. If you're working with some flatfiles, you could try charted if your data is in the format it expects. Plot ly is also a nice alternative.

Adam Leary

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