R Dataset / Package HistData / Arbuthnot

How To Create a Barplot

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How To Create a Stacked Barplot

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How To Create a Pie Chart

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How To Compute the Mean

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How To Create a Plot

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How to Compute the Median

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Boxplot

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Correlation Coefficient

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Cumulative Frequency Histogram

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Dotplot

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Hollow Histogram

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Numerical Summaries

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Pie Chart

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Plot

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Ratio

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Regression

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Stem and Leaf Plots

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Visual Summaries

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Submitted by pmagunia on March 9, 2018 - 1:06 PM
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Attachment Size
dataset-44415.csv 3.51 KB
Dataset License
GNU General Public License v2.0
Documentation License
GNU General Public License v2.0
Documentation

On this Picostat.com statistics page, you will find information about the Arbuthnot data set which pertains to Arbuthnot's data on male and female birth ratios in London from 1629-1710.. The Arbuthnot data set is found in the HistData R package. Try to load the Arbuthnot data set in R by issuing the following command at the console data("Arbuthnot"). This may load the data into a variable called Arbuthnot. If R says the Arbuthnot 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 with library("HistData") followed by data("Arbuthnot"). Perhaps strangley, if R gives you no output after entering a command, it means the command succeeded. If it succeeded you can see the data by typing Arbuthnot at the command-line which should display the entire dataset.

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 Arbuthnot R data set. The size of this file is about 3,590 bytes.


Arbuthnot's data on male and female birth ratios in London from 1629-1710.

Description

John Arbuthnot (1710) used these time series data on the ratios of male to female births in London from 1629-1710 to carry out the first known significance test, comparing observed data to a null hypothesis. The data for these 81 years showed that in every year there were more male than female christenings.

On the assumption that male and female births were equally likely, he showed that the probability of observing 82 years with more males than females was vanishingly small (~ 4.14 x 10^{-25}). He used this to argue that a nearly constant birth ratio > 1 could be interpreted to show the guiding hand of a devine being. The data set adds variables of deaths from the plague and total mortality obtained by Campbell and from Creighton (1965).

Usage

data(Arbuthnot)

Format

A data frame with 82 observations on the following 7 variables.

Year

a numeric vector, 1629-1710

Males

a numeric vector, number of male christenings

Females

a numeric vector, number of female christenings

Plague

a numeric vector, number of deaths from plague

Mortality

a numeric vector, total mortality

Ratio

a numeric vector, ratio of Males/Females

Total

a numeric vector, total christenings in London (000s)

Details

Sandy Zabell (1976) pointed out several errors and inconsistencies in the Arbuthnot data. In particular, the values for 1674 and 1704 are identical, suggesting that the latter were copied erroneously from the former.

Source

Arbuthnot, John (1710). "An argument for Devine Providence, taken from the constant Regularity observ'd in the Births of both Sexes," Philosophical transactions, 27, 186-190. Published in 1711.

References

Campbell, R. B., Arbuthnot and the Human Sex Ratio (2001). Human Biology, 73:4, 605-610.

Creighton, C. (1965). A History of Epidemics in Britain, 2nd edition, vol. 1 and 2. NY: Barnes and Noble.

S. Zabell (1976). Arbuthnot, Heberden, and the Bills of Mortality. Technical Report No. 40, Department of Statistics, University of Chicago.

Examples

data(Arbuthnot)
# plot the sex ratios
with(Arbuthnot, plot(Year,Ratio, type='b', ylim=c(1, 1.20), ylab="Sex Ratio (M/F)"))
abline(h=1, col="red")
#  add loess smooth
Arb.smooth <- with(Arbuthnot, loess.smooth(Year,Ratio))
lines(Arb.smooth$x, Arb.smooth$y, col="blue", lwd=2)# plot the total christenings to observe the anomalie in 1704
with(Arbuthnot, plot(Year,Total, type='b', ylab="Total Christenings"))

--

Dataset imported from https://www.r-project.org.
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