flies: Medfly Data
In REBayes: Empirical Bayes Estimation and Inference
flies R Documentation
Medfly Data
Description
Medfly data from the Carey et al (1992) experiment.
There are 1,203,646 uncensored survival times!
Usage
flies
Format
A data frame with 19072 observations on the following 17 variables.
ageage at death in days
numfrequency count of age at death
prcurrcurrent proportion male
currentcurrent density
cohortcohort/pupal batch
sizepupal size
cagecage number
femalefemale = 1
cumulcumulative density
prcumucumulative proportion male
begininitial cage density
prbegininitial proportion mail
size4size group 4
size5size group 5
size6size group 6
size7size group 7
size8size group 8
Details
Quoting from Carey et al (1992) “...Pupae
were sorted into one of five size classes using a pupal sorter. This
enabled size dimorphism to be eliminated as a potential source of sex-specific
mortality differences. Approximately, 7,200 medflies (both sexes) of a given
size class were maintained in each of 167 mesh covered, 15 cm by 60 cm
by 90 cm aluminum cages. Adults were given a diet of sugar and water,
ad libitum, and each day dead flies were removed, counted and their sex
determined ...”
References
Carey, J.R., Liedo, P., Orozco, D. and Vaupel, J.W. (1992)
Slowing of mortality rates at older ages in large Medfly cohorts,
Science, 258, 457-61.
Koenker, R. and O. Geling (2001) Reappraising Medfly Longevity:
A Quantile Regression Survival Analysis, J. Am. Stat. Assoc,
96, 458-468.
Koenker, R. and Jiaying Gu, (2013) “Frailty, Profile Likelihood and Medfly
Mortality,” Contemporary Developments in Statistical Theory:
A Festschrift for Hira Lal Koul, S.N. Lahiri, A. Schick, Ashis Sengupta,
and T.N. Sriram, (eds.), Springer.
REBayes documentation built on Aug. 19, 2023, 5:10 p.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
| flies | R Documentation |
Medfly Data
Description
Medfly data from the Carey et al (1992) experiment. There are 1,203,646 uncensored survival times!
Usage
flies
Format
A data frame with 19072 observations on the following 17 variables.
ageage at death in daysnumfrequency count of age at deathprcurrcurrent proportion malecurrentcurrent densitycohortcohort/pupal batchsizepupal sizecagecage numberfemalefemale = 1cumulcumulative densityprcumucumulative proportion malebegininitial cage densityprbegininitial proportion mailsize4size group 4size5size group 5size6size group 6size7size group 7size8size group 8
Details
Quoting from Carey et al (1992) “...Pupae were sorted into one of five size classes using a pupal sorter. This enabled size dimorphism to be eliminated as a potential source of sex-specific mortality differences. Approximately, 7,200 medflies (both sexes) of a given size class were maintained in each of 167 mesh covered, 15 cm by 60 cm by 90 cm aluminum cages. Adults were given a diet of sugar and water, ad libitum, and each day dead flies were removed, counted and their sex determined ...”
References
Carey, J.R., Liedo, P., Orozco, D. and Vaupel, J.W. (1992) Slowing of mortality rates at older ages in large Medfly cohorts, Science, 258, 457-61.
Koenker, R. and O. Geling (2001) Reappraising Medfly Longevity: A Quantile Regression Survival Analysis, J. Am. Stat. Assoc, 96, 458-468.
Koenker, R. and Jiaying Gu, (2013) “Frailty, Profile Likelihood and Medfly Mortality,” Contemporary Developments in Statistical Theory: A Festschrift for Hira Lal Koul, S.N. Lahiri, A. Schick, Ashis Sengupta, and T.N. Sriram, (eds.), Springer.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.