How much Data Wrangling and/or Data Cleansing does PA perform, and how much do I need to take care of (either beforehand or within PA tool) ? For example, how does PA deal with Gaps in the data ? Does it treat them as a unique data point to take into consideration when generating a model, or does it ignore blanks and leaves them out of the equation ? How does PA deal with anomalies in the data - e.g. text in numeric field, etc. Any links to reference materials would be helpful 
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Data Wrangling / Cleansing in PA
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