Example of a data frame from one file with one group of bullet holes.
data(DF300BLK)A data frame with 60 observations on the following 9 variables.
groupa factor with level 1.
distancea numerical vector giving the distance to the target.
aim.xa numerical vector of x-coordinates giving the point of aim.
aim.ya numerical vector of y-coordinates giving the of point of aim.
point.xa numerical vector of absolute x-coordinates of bullet holes.
point.ya numerical vector of absolute y-coordinates of bullet holes.
origina factor with level 1. This factor codes from which original output file the data is.
orgsera factor with levels 1.1, 1.2, 1.3. This factor results from droplevels(interaction(origin, group)), and codes each separate group across original files. The order of the factor levels is alphabetical.
seriesa factor with levels 1, 2, 3. This factor codes each separate group as defined by orgser, but more conveniently as a number that runs consecutively across original files.
distance.unitMeasurement unit distance to target
point.unitMeasurement unit (x,y)-coordinates
Three groups of shooting a Noveske AR-15 rifle in 300BLK at 100yd with handloaded ammunition. The measurement unit for coordinates is inch, for distance yards.
This data frame is like those returned by readDataOT1, readDataOT2, or readDataMisc with option combine=TRUE.
Data courtesy of David Bookstaber, 2014. http://ballistipedia.com/
combineData,
analyzeGroup,
compareGroups