Data Analysis and Visualization for Skyscape Archaeology


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Documentation for package ‘skyscapeR’ version 1.0.0

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antizenith Declination of the anti-zenith sun for a given location
az.pdf Convert discrete azimuth measurements into probability distributions
az2dec Calculates declination from azimuth and altitude measurements
BC.AD Converts year number (epoch) to calendar year
bernoulli.trial Execute a (series of) Bernoulli trial(s)
body.position Computes position of Solar System bodies in equatorial coordinates
coordtrans Coordinate-transform azimuth prob distributions into declination prob distributions
createHor Create _skyscapeR.horizon_ object from Az/Alt data
createHWT Create and download horizon data from _HeyWhatsThat_
curvigram (Defunct) Computes declination curvigram
downloadHWT Download horizon data from _HeyWhatsThat_
dS Declination of December Solstice for a given year
EFM Equinoctial Full Moons
eq Declination of the sun at the Equinox
exportHor Exports a _skyscapeR.horizon_ object into _Stellarium_ format
findTargets Find celestial targets within declination and time ranges
hor2alt Retrieves horizon altitude for a given azimuth from a given horizon profile
hpdi Returns the high-density region of a probability distribution
jd2time Converts Julian date and time (in any timezone) to julian date
jS Declination of June Solstice for a given year
long.date Converts day-month in 'MM-DD' format to a more readable format
mag.dec Estimates magnetic declination (difference between true and magnetic north) based on IGRF 12th gen model
moonphase Computes the phase of the moon
nMjLX Declination of northern major Lunar Extreme for a given year
nmnLX Declination of northern minor Lunar Extreme for a given year
obliquity Computes obliquity of the ecliptic
orbit Calculate visible path of celestial object at given location
parallax.corr Corrected parallax for a given location and object altitude
plot.skyscapeR.horizon Plot horizon data
plot.skyscapeR.pdf Plot orientation probability distributions
plot.skyscapeR.sigTest Plot significance test of orientations
plot.skyscapeR.spd Plot orientation summed probability density
plot.skyscapeR.starphases Plot stellar phase and seasonality
plotAzimuth Polar plot of orientations (azimuths)
plotBars Bar plot of orientations (declination)
print.skyscapeR.sigTest Prints significance test results
pval2stars Converts p-value into symbol
randomTest Significance test against the null hypothesis of random orientation
reduct.compass Data reduction for compass measurements
reduct.theodolite Data reduction for theodolite measurements using the sun-sight method
riseset Computes the rising and setting azimuth, declination and time of a Solar System object for a given location and day
RugglesCKR Cork and Kerry Stone Row Data
RugglesRSC Recumbent Stone Circle Data
sigTest (Defunct) Perform a null hypothesis significance test of a given curvigram
sky.objects Creates a _skyscapeR.object_ for plotting of celestial objects at given epoch
sky.sketch Create a simplistic sketch of the sky at a given moment in time
skyscapeR.vars See and change the global variables used by skyscapeR
sMjLX Declination of southern major Lunar Extreme for a given year
smnLX Declination of southern minor Lunar Extreme for a given year
solar.date Solar Date
spatial.equinox Declination of the spatial equinox for a given location
spd Summed probability density (SPD)
star Create _skyscapeR.star_ object
star.phases Calculate the seasons and phase type of a star
sunAz Returns the azimuth of the sun at a given time from a specific location
ten Converts degree measurements in deg-min-sec (ยบ ' ") format into decimal-point degree format.
time2jd Converts date and time (in any timezone) to Julian date
timestring Converts date and time numeric values to a single string
zenith Declination of the zenith sun for a given location