[M]-Median.md

Median

Preparation Code

# Functions
library(dplyr)

# Sample Data
library(vcd)
A <- Arthritis

Actual Code

Sample Task 1

Compute median age.

median(A$Age)

Sample Task 2

Compute median age for each gender.

A %>% group_by(Sex) %>% summarise(Median = median(Age))

Sample Task 3

Compute median age, grouping primarily by mode of treatment, and secondarily by gender.

A %>% group_by(Treatment, Sex) %>% summarise(Median = median(Age))