Using R and RStudio for Data Management, Statistical Analysis, and Graphics, 2nd Edition

i

i

“K23166” — 2015/1/28 — 9:35 — page 33 — #59

i

i

i

i

i

i

Chapter 3

Statistical and mathematical

functions

This chapter reviews key statistical, probability, mathematical, and matrix functions.

3.1 Probability distributions and random

number generation

Quantiles and cumulative distribution values can be calculated easily within R. Random

variables are commonly needed for simulation and analysis. These can be generated for a

large number of distributions.

A seed can be specified for the random number generator. This is important to allow

replication of results (e.g., while testing and debugging). Information about random number

seeds can be found in 3.1.3.

Table ...