Other things related to adv data:
[[,adv-method,
[[<-,adv-method,
adv,
adv-class,
advSontekAdrFileTrim(),
applyMagneticDeclination,adv-method,
beamName(),
beamToXyz(),
enuToOther(),
enuToOtherAdv(),
plot,adv-method,
read.adv(),
read.adv.nortek(),
read.adv.sontek.adr(),
read.adv.sontek.serial(),
read.adv.sontek.text(),
rotateAboutZ(),
subset,adv-method,
toEnu(),
toEnuAdv(),
velocityStatistics(),
xyzToEnu(),
xyzToEnuAdv()