aacpd: Area under the disease progress curve (AACPD)

In AgronomiaR/iagro: Indices agronomicos

Description

The aacpd function calculates the area under the disease progress curve according to the methodology proposed by Campbell & Madden, 1990

Usage

aacpd(dados, tempo, trat, save = FALSE)

Arguments

dados	Data.frame composed of the evaluation in each time in columns.
tempo	Vector numeric with time
trat	Vector with the names of the treatments with the repetitions

Details

AACPD

References

Campbell CL, Madden LV (1990) Introduction to plant disease epidemiology. New York NY. John Wiley & Sons.

Examples

dia7=c(0,2,1, 4,5,6, 2,3,2)
dia14=c(4,5,6, 8,9,8, 14,15,16)
dia21=c(14,20,16, 25,26,28, 30,31,33)
dia28=c(30,35,32, 40,41,44, 46,48,50)
dia35=c(45,47,50, 48,49,50, 50,50,49)
dados=data.frame(dia7,dia14,dia21,dia28,dia35)
trat=rep(c("T1","T2","T3"),e=3)
tempo=c(7,14,21,28,35)
aacpd(dados,tempo,trat)

AgronomiaR/iagro documentation built on April 16, 2020, 10:54 p.m.