red.cell.folate | R Documentation |
The folate
data frame has 22 rows and 2 columns.
It contains data on red cell folate levels in patients receiving three
different methods of ventilation during anesthesia.
red.cell.folate
This data frame contains the following columns:
folate
a numeric vector, folate concentration (\mu\mathrm{g}/\mathrm{l}
).
ventilation
a factor with levels
N2O+O2,24h
: 50% nitrous oxide and 50% oxygen, continuously for
24 hours;
N2O+O2,op
: 50% nitrous oxide and 50% oxygen, only during operation;
O2,24h
: no nitrous oxide but 35%–50% oxygen for 24 hours.
D.G. Altman (1991), Practical Statistics for Medical Research, Table 9.10, Chapman & Hall.
plot(folate~ventilation,data=red.cell.folate)
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