Ribeiro et al. (2013) carried out an experiment to assess the bioactivity of extracts from different parts (seeds, leaves and branches) of Annona mucosa (Annonaceae) to control Sitophilus zeamais (Coleoptera: Curculionidae), a major pest of stored maize/corn in Brazil.
data(sitophilus)A data frame with 40 observations on 2 variables.
the treatment used
number emerged insects (progeny)
10g of corn and 20 animals adults were placed in each Petri dish. Extracts prepared with different parts of mucosa or just water (control) were completely randomized with 10 replicates.
The numbers of emerged insects (progeny) after 60 days and their corresponding treatments were recorded in this dataset.
This dataset was obtained from the `cmpreg``package of Ribeiro Jr, Zeviani & Demétrio (2019), which is based on the work of Ribeiro Junior et al. (2019).
This data set is also used to illustrate the syntax for regression on the dispersion.
Ribeiro Junior, E.E., Zeviani, W.M., Bonat, W.H., Demétrio, C.G., & Hinde, J. (2019). Reparametrization of COM–Poisson regression models with applications in the analysis of experimental data. Statistical Modelling. https://doi.org/10.1177%2F1471082X19838651.
Ribeiro, L.P., Vendramim, J.D., Bicalho, K.U., Andrade, M.S., Fernandes, J.B., Moral, R.A., & Demétrio C.G.B. (2013). Annona mucosa Jacq. (Annonaceae): A promising source of bioactive compounds against Sitophilus zeamais Mots. (Coleoptera: Curculionidae). Journal of Stored Products Research, 55, 6-14.
## For examples see example(glm.cmp)