Chicken presentation
Jeremy Fraenkel
10/04/2018
Description
The ChickWeight data frame has 578 rows and 4 columns from an experiment on the effect of diet on early growth of chicks. The body weights of the chicks were measured at birth and every second day thereafter until day 20. They were also measured on day 21. There were four groups on chicks on different protein diets.
- Weight: a numeric vector giving the body weight of the chick (gm).
- Time: a numeric vector giving the number of days since birth when the measurement was made.
- Chick: an ordered factor with levels 18 < … < 48 giving a unique identifier for the chick. (Chick does not provide any material difference when added to our analysis)
- Diet: a factor with levels 1, …, 4 indicating which experimental diet the chick received.
Links
- Here you can find the Shiny App: https://jeremyfraenkel.shinyapps.io/App1/
- And here you can find the github folder with all the necessary code: https://github.com/jeremyfraenkel/chicken
Plot
This is a boxplot of the weight of chickens over time.
Takeaways
When the number of days increase since birth, the weight of the chicken increases as well (all else being constant). Similarily, diet 3 seems to be the diet that makes chickens gain the most weight followed by diet 4, 2 and 1.