Name:

Description:

Data from Kendall & Stuart (1961) on unaided vision among 3,242 men and 7,477 women, all aged 30-39 and employed in the U.K. Royal Ordnance factories 1943-1946.

Variables:

A data frame with 32 observations and 5 variables.

Freq

frequency of visual acuity measurements.

right

visual acuity on right eye.

left

visual acuity on left eye.

gender

factor indicating gender of patient.

Link To Google Sheets:

Rows:

Columns:

Files:

License Type:

References/Notes/Attributions:

Source

M. Friendly (2000), Visualizing Categorical Data: http://euclid.psych.yorku.ca/ftp/sas/vcd/catdata/vision.sas

References

M. G. Kendall & A. Stuart (1961), The Advanced Theory of Statistics, Vol. 2. Griffin, London.

M. Friendly (2000), Visualizing Categorical Data. SAS Institute, Cary, NC.

R Dataset Upload:

Use the following R code to directly access this dataset in R.

R Coding Interface: