#0126

Create Summary Data Frame in R

EasyR15 min10 XP

Problem

Given vectors group <- c("A","A","B") and score <- c(10,20,5), write R code that creates a data frame with mean score per group.

Creating clean summary tables is one of the first useful outputs in R.

Example 1

InputA: 10,20 and B: 5

OutputA mean 15, B mean 5

aggregate applies mean within each group.

CodeR

group <- c("A", "A", "B")
score <- c(10, 20, 5)

# write your code here

group <- c("A", "A", "B")
score <- c(10, 20, 5)

# write your code here

Visible browser tests run here when available.

Testcases1 visible / 3 hidden categories

Core example

InputA: 10,20 and B: 5

ExpectedA mean 15, B mean 5

aggregate applies mean within each group.

Hidden Test Categories

one groupdecimal scoresrenaming output columns