What all options are available for filling missing data ?
One obvious choice is the mean, but if the percentage of missing data is large, it will decrease the accuracy.
So how do we deal with missing values if they are in great number ?
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Stephan Kolassa
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4Have you looked at the [tag:data-imputation] and [tag:multiple-imputation] tags? – Stephan Kolassa Oct 06 '15 at 11:01
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Cross-posted at http://datascience.stackexchange.com/questions/8322/filling-missing-data-with-other-than-mean-values. – whuber Oct 06 '15 at 16:31