MKinfer (version 1.2)

fingsys: Systolic Blood Pressure Dataset used in Bland and Altman (1995)

Description

This dataset was used in Band and Altman (1995) to demonstrate why plotting difference against standard method is misleading.

Usage

data(fingsys)

Format

A data.frame with two colums

armsys

systolic blood pressure (mm Hg) measured by a standard arm cuff.

fingsys

systolic blood pressure (mm Hg) measured by a finger monitor.

For more details see Close et al. (1986) as well as Bland and Altman (1995).

Details

The dataset is a random subset of 200 observations from a larger dataset of Close et al. (1986) that was used in Bland and Altman (1995) to demonstrate why plotting difference against standard method is misleading.

References

Close A, Hamilton G, Muriss S (1986). Finger systolic pressure: its use in screening for hypertension and monitoring. Brit Med J 293:775-778.

Bland JM, Altman DG. (1995) Comparing methods of measurement: why plotting difference against standard method is misleading. Lancet 346, 1085-7.

Examples

  data(fingsys)
  str(fingsys)
  head(fingsys)
  tail(fingsys)