# R Dataset / Package HistData / PearsonLee

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On this Picostat.com statistics page, you will find information about the PearsonLee data set which pertains to Pearson and Lee's data on the heights of parents and children classified by gender. The PearsonLee data set is found in the HistData R package. You can load the PearsonLee data set in R by issuing the following command at the console data("PearsonLee"). This will load the data into a variable called PearsonLee. If R says the PearsonLee data set is not found, you can try installing the package by issuing this command install.packages("HistData") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the PearsonLee R data set. The size of this file is about 27,525 bytes. ## Pearson and Lee's data on the heights of parents and children classified by gender## DescriptionWachsmuth et. al (2003) noticed that a loess smooth through Galton's data on heights of mid-parents and their offspring exhibited a slightly non-linear trend, and asked whether this might be due to Galton having pooled the heights of fathers and mothers and sons and daughters in constructing his tables and graphs. To answer this question, they used analogous data from English families at about the same time, tabulated by Karl Pearson and Alice Lee (1896, 1903), but where the heights of parents and children were each classified by gender of the parent. ## Usagedata(PearsonLee) ## FormatA frequency data frame with 746 observations on the following 6 variables. `child` child height in inches, a numeric vector `parent` parent height in inches, a numeric vector `frequency` a numeric vector `gp` a factor with levels `fd` `fs` `md` `ms` `par` a factor with levels `Father` `Mother` `chl` a factor with levels `Daughter` `Son`
## DetailsThe variables ## SourcePearson, K. and Lee, A. (1896). Mathematical contributions to the theory
of evolution. On telegony in man, etc. Pearson, K. and Lee, A. (1903).
On the laws of inheritance in man: I. Inheritance of physical characters. ## ReferencesWachsmuth, A.W., Wilkinson L., Dallal G.E. (2003).
Galton's bend: A previously undiscovered nonlinearity in Galton's family stature regression data.
## See Also
## Examplesdata(PearsonLee) str(PearsonLee)with(PearsonLee, { lim <- c(55,80) xv <- seq(55,80, .5) sunflowerplot(parent,child, number=frequency, xlim=lim, ylim=lim, seg.col="gray", size=.1) abline(lm(child ~ parent, weights=frequency), col="blue", lwd=2) lines(xv, predict(loess(child ~ parent, weights=frequency), data.frame(parent=xv)), col="blue", lwd=2) # NB: dataEllipse doesn't take frequency into account if(require(car)) { dataEllipse(parent,child, xlim=lim, ylim=lim, plot.points=FALSE) } })## separate plots for combinations of (chl, par)# this doesn't quite work, because xyplot can't handle weights require(lattice) xyplot(child ~ parent|par+chl, data=PearsonLee, type=c("p", "r", "smooth"), col.line="red")# Using ggplot [thx: Dennis Murphy] require(ggplot2) ggplot(PearsonLee, aes(x = parent, y = child, weight=frequency)) + geom_point(size = 1.5, position = position_jitter(width = 0.2)) + geom_smooth(method = lm, aes(weight = PearsonLee$frequency, colour = 'Linear'), se = FALSE, size = 1.5) + geom_smooth(aes(weight = PearsonLee$frequency, colour = 'Loess'), se = FALSE, size = 1.5) + facet_grid(chl ~ par) + scale_colour_manual(breaks = c('Linear', 'Loess'), values = c('green', 'red')) + theme(legend.position = c(0.14, 0.885), legend.background = element_rect(fill = 'white'))# inverse regression, as in Wachmuth et al. (2003)ggplot(PearsonLee, aes(x = child, y = parent, weight=frequency)) + geom_point(size = 1.5, position = position_jitter(width = 0.2)) + geom_smooth(method = lm, aes(weight = PearsonLee$frequency, colour = 'Linear'), se = FALSE, size = 1.5) + geom_smooth(aes(weight = PearsonLee$frequency, colour = 'Loess'), se = FALSE, size = 1.5) + facet_grid(chl ~ par) + scale_colour_manual(breaks = c('Linear', 'Loess'), values = c('green', 'red')) + theme(legend.position = c(0.14, 0.885), legend.background = element_rect(fill = 'white')) -- Dataset imported from https://www.r-project.org. |

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dataset-42701.csv | 26.88 KB |