Nematocera {BSagri} | R Documentation |
In a field trial, 4 treatments (A,B, Standard, Novum) were arranged in a randomized complete block design with 8 blocks and 32 plots. In summer 2005 soil eklektor traps were placed in each plot, on six dates from 2005-07-12 to 2005-09-25, the number of individuals of Nematocera (gnats, midges and others) hatching from soil were counted. The individuals were classified to the family level. Interest was in assessing potential effects of a novel agricultural practice (Novum) on the abundance of Nematocera.
data(Nematocera)
A data frame with 192 observations on the following 14 variables.
Date
Treatment
A
, B
, Standard
and Novum
, where Novum
is the novel treatment, Standard
is the standard treatment most similar to Novum
, and A
and B
are additional standard treatments.Block
Plot
A1
to Standard8
, indicator variables for the individual eklektorsBibio
Cecido
Cerato
Chiro
Myceto
Psycho
Scato
Sciari
Tipuli
Total
...
data(Nematocera) par(mar=c(11,5,3,1)) boxplot(Total ~ Treatment*Date, data=Nematocera, las=2, col=c("white","white","blue","green")) legend(x=15, y=100, legend=levels(Nematocera$Treatment), fill=c("white","white","blue","green")) pairs(Nematocera[,c("Cecido","Cerato","Chiro","Myceto","Psycho","Sciari")])