insecticide: Flour beetle response to three insecticides.
In trobinj/trtools: Miscellaneous Tools for Teaching Statistics
insecticide R Documentation
Flour beetle response to three insecticides.
Description
Hewlett and Plackett (1950) reported an experiment that exposed flour beetles (Tribolium castaneum) to one of three insecticides: dichlorodiphenyltrichloroethane (DDT), gamma-benzene hexachloride (g-BHC), and a mixture of both DDT and g-BHC. Batches of beetles were exposed to varying deposits of spray on a surface in varying amounts of mg per 10 square centimeters using a dilution of the insecticide. Batches of beetles was randomly assigned to an insecticide and a deposit amount so that there was one batch per combination of insecticide and deposit amount. The number of beetles that died after a specified amount of time was recorded for each batch.
Usage
insecticide
Format
A data frame 18 observations and four variables:
- insecticide:
insecticide to which the beetles were exposed (DDT, g-BHC, or both)
- deposit:
amount of insecticide in mg per 10 square cm
- deaths:
number of beetles in the batch that died
- total:
total number of beetles in batch
Note
: The data are also featured in Collett (2003).
Source
Collett, D. (2003). Modelling binary data (2nd Edition). Boca Raton: Chapman & Hall/CRC.
Hewlett, P. S. & Plackett, R. L. (1950). Statistical aspects of the independent joint action of poisons, particularly insecticides. II. Examination of data for agreement with the hypothesis. Annals of Applied Biology, 37, 527-552.
trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.
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| insecticide | R Documentation |
Flour beetle response to three insecticides.
Description
Hewlett and Plackett (1950) reported an experiment that exposed flour beetles (Tribolium castaneum) to one of three insecticides: dichlorodiphenyltrichloroethane (DDT), gamma-benzene hexachloride (g-BHC), and a mixture of both DDT and g-BHC. Batches of beetles were exposed to varying deposits of spray on a surface in varying amounts of mg per 10 square centimeters using a dilution of the insecticide. Batches of beetles was randomly assigned to an insecticide and a deposit amount so that there was one batch per combination of insecticide and deposit amount. The number of beetles that died after a specified amount of time was recorded for each batch.
Usage
insecticide
Format
A data frame 18 observations and four variables:
- insecticide:
insecticide to which the beetles were exposed (DDT, g-BHC, or both)
- deposit:
amount of insecticide in mg per 10 square cm
- deaths:
number of beetles in the batch that died
- total:
total number of beetles in batch
Note
: The data are also featured in Collett (2003).
Source
Collett, D. (2003). Modelling binary data (2nd Edition). Boca Raton: Chapman & Hall/CRC.
Hewlett, P. S. & Plackett, R. L. (1950). Statistical aspects of the independent joint action of poisons, particularly insecticides. II. Examination of data for agreement with the hypothesis. Annals of Applied Biology, 37, 527-552.
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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