DFtalon {shotGroups}

Combined bullet hole data

Description

Example of a combined data frame from several original files, each file containing one group.

Usage

data(DFtalon)

Format

A data frame with 180 observations on the following 10 variables.

point.x

a numerical vector of absolute x-coordinates of bullet holes.

point.y

a numerical vector of absolute y-coordinates of bullet holes.

aim.x

a numerical vector of x-coordinates giving the point of aim.

aim.y

a numerical vector of y-coordinates giving the of point of aim.

distance

a numerical vector giving the distance to the target.

group

a factor with level 1. This is the original Group variable as defined by OnTarget PC/TDS.

bullet

a character vector describing the bullet type.

origin

a factor with levels 1 ... 9. This factor codes from which original output file the data is.

orgser

a factor with levels 1.1 ... 9.1. This factor results from droplevels(interaction(Origin, Group)), and codes each separate group across original files. The order of the factor levels is alphabetical.

series

a factor with levels 1 ... 9. This factor codes each separate group as defined by orgser, but more conveniently as a number that runs consecutively across original files.

distance.unit

Measurement unit distance to target

point.unit

Measurement unit (x,y)-coordinates

Details

Several groups of shooting a Talon SS air rifle at 10m. The measurement unit for coordinates is mm, for distance meters.
This data frame is like those returned by readDataOT1, readDataOT2, or readDataMisc with option combine=TRUE.
Data copyright Charles McMillan and Paul McMillan, 2008.

See Also

combineData, analyzeGroup, compareGroups

Examples

data(DFtalon)
str(DFtalon)