FingerRatio: 2D:4D Finger Ratio

In abd: The Analysis of Biological Data

Description

The ratio of the lengths of the index finger to the ring finger in 46 males and the number of CAG repeats for each.

Format

A data frame with 46 observations on the following 2 variables.

CAGrepeats

a numeric vector of the number of CAG repeats

finger.ratio

a numeric vector of the ratio of digit 2 to digit 4

Source

inferred from Manning, J.T., P.E. Bundred, D.J. Newton, and B.F. Flanagan. 2003. The second to fourth digit ratio and variation in the androgen receptor gene. Evolution and Human Behavior 24: 399-405.

References

http://en.wikipedia.org/wiki/Digit_ratio

Examples

str(FingerRatio)
xyplot(finger.ratio ~ CAGrepeats, FingerRatio,
  xlab = "Number of CAG Repeats",
  ylab = "2D:4D Ratio"
)

Example output

Loading required package: nlme
Loading required package: lattice
Loading required package: grid
Loading required package: mosaic
Loading required package: dplyr

Attaching package: 'dplyr'

The following object is masked from 'package:nlme':

    collapse

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Loading required package: ggformula
Loading required package: ggplot2

New to ggformula?  Try the tutorials: 
	learnr::run_tutorial("introduction", package = "ggformula")
	learnr::run_tutorial("refining", package = "ggformula")
Loading required package: mosaicData
Loading required package: Matrix

The 'mosaic' package masks several functions from core packages in order to add 
additional features.  The original behavior of these functions should not be affected by this.

Note: If you use the Matrix package, be sure to load it BEFORE loading mosaic.

Attaching package: 'mosaic'

The following object is masked from 'package:Matrix':

    mean

The following objects are masked from 'package:dplyr':

    count, do, tally

The following objects are masked from 'package:stats':

    IQR, binom.test, cor, cor.test, cov, fivenum, median, prop.test,
    quantile, sd, t.test, var

The following objects are masked from 'package:base':

    max, mean, min, prod, range, sample, sum

'data.frame':	46 obs. of  2 variables:
 $ CAGrepeats  : int  21 22 25 19 20 18 19 19 19 20 ...
 $ finger.ratio: num  1.06 1.06 1.06 1.03 1.03 ...

abd documentation built on May 2, 2019, 2:14 p.m.