R Dataset / Package psych / heights

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How To Compute the Mean

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How to Compute the Median

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Attachment Size
dataset-40709.csv 3.07 KB
Dataset License
GNU General Public License v2.0
Documentation License
GNU General Public License v2.0
R Dataset Help

On this Picostat.com statistics page, you will find information about the heights data set which pertains to A data.frame of the Galton (1888) height and cubit data set.. The heights data set is found in the psych R package. You can load the heights data set in R by issuing the following command at the console data("heights"). This will load the data into a variable called heights. If R says the heights data set is not found, you can try installing the package by issuing this command install.packages("psych") 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 heights R data set. The size of this file is about 3,140 bytes.

Documentation

A data.frame of the Galton (1888) height and cubit data set.

Description

Francis Galton introduced the 'co-relation' in 1888 with a paper discussing how to measure the relationship between two variables. His primary example was the relationship between height and forearm length. The data table (cubits) is taken from Galton (1888). Unfortunately, there seem to be some errors in the original data table in that the marginal totals do not match the table.

The data frame, heights, is converted from this table using table2df.

Usage

data(heights)

Format

A data frame with 348 observations on the following 2 variables.

height

Height in inches

cubit

Forearm length in inches

Details

Sir Francis Galton (1888) published the first demonstration of the correlation coefficient. The regression (or reversion to mediocrity) of the height to the length of the left forearm (a cubit) was found to .8. The original table cubits is taken from Galton (1888). There seem to be some errors in the table as published in that the row sums do not agree with the actual row sums. These data are used to create a matrix using table2matrix for demonstrations of analysis and displays of the data.

Source

Galton (1888)

References

Galton, Francis (1888) Co-relations and their measurement. Proceedings of the Royal Society. London Series,45,135-145,

See Also

table2matrix, table2df, cubits, ellipses, galton

Examples

data(heights)
ellipses(heights,n=1,main="Galton's co-relation data set")
--

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

All Public Datasets File Size
Test 394 bytes
Q1 332 bytes
prova_Correlatio 593 bytes
profva
test 332 bytes
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