June 2017
Beginner to intermediate
576 pages
15h 22m
English
Content preview from Practical Predictive Analytics
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Running pairwise correlations directly on a Spark dataframe
Correlation and covariance functions are available which operate directly on Spark dataframes. The following example shows that, for patients with diabetes, there is an 11% correlation between age and glucose level:
corr <- corr(out_sd1, "glucose", "age", method = "pearson") corr