Example of a data frame from one file with one group of bullet holes.
data(DFlandy01)
A data frame with 530 observations on the following 15 variables.
group
a numerical vector with group numbers 1 to 53.
distance
a numerical vector giving the distance to the target.
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.
point.x
a numerical vector of absolute x-coordinates of bullet holes.
point.y
a numerical vector of absolute y-coordinates of bullet holes.
ammunition
a character vector giving ammunition and lot number.
velocity
a numerical vector of chronograph readings in ft/s.
control
undocumented.
phase1
undocumented.
phase2
undocumented.
file
a character vector with the original file name.
groupVerb
a character vector designating the group by combining the original file name and ammunition.
series
a character vector that codes each separate group in an alternative way.
seriesNum
like series
but numeric.
distance.unit
Measurement unit distance to target
point.unit
Measurement unit (x,y)-coordinates
53 groups with 10 shots each of .22LR shot at Eley test center on Oct 2 2016 using a Stiller 2500X action at a distance of 50m. The measurement unit for coordinates is mm, for distance m.
This data frame is like those returned by readDataOT1
, readDataOT2
, or readDataMisc
with option combine=TRUE
.
Data courtesy of Larry Landercasper, 2017. Analyzed by Albert Highe.
combineData
,
analyzeGroup
,
compareGroups
data(DFlandy01)
str(DFlandy01)
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