Brachycera {BSagri} | R Documentation |
In a field trial, 4 treatments were arranged in a randomized complete block design with 8 blocks and 32 plots. Soil eklektor traps were placed in each plot, on six dates from 2005-07-12 to 2005-09-25, the number of individuals of Brachycera (Flies, Order Diptera) hatching from soil were counted. The individuals were classified to the family level. Interest was in assessing potential effects of the novel treatment (Novum) on the abundance of Brachycera, compared to a near standard (Standard) and two additional standard treatments, A and B.
data(Brachycera)
A data frame with 192 observations on the following 15 variables.
Date
Treatment
A
B
Standard
Novum
,
where Novum
is the novel treatment of interest in safety assessment, and Standard
is the nearest standard treatment which commonly accepted.
A
and B
are two additional standard treatments.Block
Plot
A1
A2
to Standard8
, indicator of the individuals plotsAgromy
Anthom
Callip
Chloro
Ephyd
Droso
Hybo
Musci
Phori
Sphaer
Total
...
data(Brachycera) par(mar=c(11,5,3,1)) boxplot(Total ~ Treatment*Date, data=Brachycera, las=2, col=c("white","white","blue","green")) legend(x=15, y=80, legend=levels(Brachycera$Treatment), fill=c("white","white","blue","green"))