vcf | R Documentation |
A dataset containing 100 observations of mean velocity of circumferential fibre shortening (vcf), made by long axis and short axis echocardiography.
vcf
A data frame with 133 rows and 3 variables:
patient identifier
vcf measurement from long axis
vcf measurement from short axis
...
Data from Bland JM, Altman DG. (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet i, 307-310. (Supplied by Paul D'Arbela)
library(VarReg)
data(vcf)
attach(vcf)
plot(rowMeans(vcf[-1]),vcf$vcflong-vcf$vcfshort)
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