ex0624: A Biological Basis for Homosexuality

In Sleuth3: Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd Ed)"

Description

Is there a physiological basis for sexual preference? Researchers measured the volumes of four cell groups in the interstitial nuclei of the anterior hypothalamus in postmortem tissue from 41 subjects at autopsy from seven metropolitan hospitals in New York and California.

Usage

ex0624

Format

A data frame with 41 observations on the following 5 variables.

Volume

volumes of INAH3 (1000 x mm^3) cell clusters from 41 humans

Group

a factor with levels

"Group1"	heterosexual male with AIDS death
"Group2"	heterosexual male with Non-AIDS death
"Group3"	homosexual male with AIDS death
"Group4"	heterosexual female with AIDS death
"Group5"	heterosexual female with Non-AIDS death

Sex

a factor with levels "Female" and "Male"

Orientation

a factor with levels "Heterosexual" and "Homosexual"

Death

a factor with levels "AIDS" and "Non-AIDS"

Source

Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.

References

LeVay, S. (1991). A Difference in Hypothalamic Structure Between Heterosexual and Homosexual Men, Science 253(5023): 1034–1037.

Examples

str(ex0624)

Example output

'data.frame':	41 obs. of  5 variables:
 $ Volume     : int  12 105 105 118 119 161 20 37 103 129 ...
 $ Group      : Factor w/ 5 levels "Group1","Group2",..: 1 1 1 1 1 1 2 2 2 2 ...
 $ Sex        : Factor w/ 2 levels "Female","Male": 2 2 2 2 2 2 2 2 2 2 ...
 $ Orientation: Factor w/ 2 levels "Heterosexual",..: 1 1 1 1 1 1 1 1 1 1 ...
 $ Death      : Factor w/ 2 levels "AIDS","Non-AIDS": 1 1 1 1 1 1 2 2 2 2 ...

Sleuth3 documentation built on May 2, 2019, 6:41 a.m.