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SQL Server 2017 Machine Learning Services with R
book

SQL Server 2017 Machine Learning Services with R

by Toma≈æ Ka≈°trun Kaštrun, Julie Koesmarno
February 2018
Intermediate to advanced content levelIntermediate to advanced
338 pages
7h 5m
English
Packt Publishing
Content preview from SQL Server 2017 Machine Learning Services with R

Functions for descriptive statistics

Descriptive statistics give insights into understanding data. These are summary statistics that describe a given dataset by summarizing features and measures, such as central tendency and measure of spread (or variability). Central tendency includes calculation of the mean, median, mode, whereas measures of variability include range, quartiles, minimum and maximum value, variance and standard deviation, as well as skewness and kurtosis.

These statistics are covered byrx- functions in RevoScaleR package, which means that you can use all the computational advantages of the package by calling: rxSummary, rxCrossTabs, rxMarginals, rxQuantile, rxCube, and rxHistogram, without worrying about the performance, ...

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Publisher Resources

ISBN: 9781787283572Supplemental Content