rootGrowth: rootGrowth: The Length of Roots Measured over Time

In thoree/stat340: Data and functions for BIAS at NMBU

rootGrowth: The Length of Roots Measured over Time

Description

The length of roots was measured bi-weekly for 11 weeks. From week 0 to week 10, the roots were measured every two weeks, resulting in six repeated measurements for each root.

Usage

rootGrowth

Format

A tibble with 180 observations (rows) and 4 variables (columns).

	Column name	Data type	Description	Values
[,1]	week	numeric	Time of measurement in weeks	(0 - 10)
[,2]	treatment	factor	2 levels of treatments	(control, fertilizer)
[,3]	root	numeric	Measured length of the root	(0.8443 - 12.4172)
[,4]	plant	factor	30 different plants	(ID1...ID115)

Details

The plants were grown under two different conditions:

• 15 roots were grown under normal conditions (control)

• 15 roots were grown under fertilized conditions (fertilizer).

This data is an extension of the data set fertilizer in ⁠The R Book⁠.

See Also

fertilizer

Examples

# Summary of the control plants
idx_ctrl <- which(rootGrowth$treatment == "control")
summary(rootGrowth[idx_ctrl,])

# Summary of the plants treated with fertilizer
idx_treat <- which(rootGrowth$treatment == "fertilizer")
summary(rootGrowth[idx_treat,])

thoree/stat340 documentation built on June 30, 2024, 4:04 p.m.