shoots: Height Growth Data of Bamboo Shoots

In IPEC: Root Mean Square Curvature Calculation

Description

The height growth data of four species of bamboos in the Nanjing Forestry University campus in 2016.

Usage

data(shoots)

Details

In the data set, there are four variables: code, species, time and height. code is used to save the number codes of different bamboo species; species is used to save the Latin names of different bamboo species; time is used to save the observation times (d) from a specific starting time of growth, and every bamboo has a different starting time of growth; height is used to save the measured aboveground height values (cm).

code = 1 represents Phyllostachys iridescens, and the starting time (namely time = 0) was defined as 12:00, 3rd April, 2016;

code = 2 represents Phyllostachys mannii, and the starting time (namely time = 0) was defined as 12:00, 4th April, 2016;

code = 3 represents Sinobambusa tootsik, and the starting time (namely time = 0) was defined as 12:00, 18th April, 2016;

code = 4 represents Pleioblastus maculatus, and the starting time (namely time = 0) was defined as 12:00, 29th April, 2016.

References

Shi, P.-J., Fan, M.-L., Ratkowsky, D.A., Huang, J.-G., Wu, H.-I, Chen, L., Fang, S.-Y. and Zhang, C.-X. (2017) Comparison of two ontogenetic growth equations for animals and plants. Ecol. Model. 349, 1-10.

Examples

data(shoots)
attach(shoots)
# Choose a species
# 1: Phyllostachys iridescens; 2: Phyllostachys mannii; 
# 3: Sinobambusa tootsik; 4: Pleioblastus maculatus
ind <- 1
x3  <- time[code == ind]
y3  <- height[code == ind] 
dev.new()
par(mar=c(5,5,2,2))
plot(x3, y3, cex=1.5, cex.lab=1.5, cex.axis=1.5, xlab="Time (d)", ylab="Height (cm)")

Example output

IPEC documentation built on July 2, 2020, 3:26 a.m.