79 urine specimens were analyzed in an effort to determine if
certain physical characteristics of the urine might be related to
the formation of calcium oxalate crystals. Cases 1 and 55 have
missing covariates.
Usage
data(urine)
Arguments
Format
This data frame contains the following columns:
r
Indicator of the presence of calcium oxalate crystals.
gravity
The specific gravity of the urine.
ph
The pH reading of the urine.
osmo
The osmolarity of the urine. Osmolarity is proportional to
the concentration of molecules in solution.
cond
The conductivity of the urine. Conductivity is
proportional to the concentration of charged ions in
solution.
urea
The urea concentration in millimoles per litre.
calc
The calcium concentration in millimoles per litre.