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robustbase (version 0.99-4-1)

los: Length of Stay Data

Description

Length of stay for 201 patients that stayed at the University Hospital of Lausanne during the year 2000.

Usage

data(los, package="robustbase")

Arguments

Format

Vector of integer values giving the length of stay (days):

int [1:201] 16 13 17 4 15 24 59 18 33 8 ...

Details

These data may be used to estimate and predict the total resource consumption of this group of patients.

Cf. Ruffieux, Paccaud and Marazzi (2000).

References

Ruffieux, C., Paccaud, F. and A. Marazzi (2000) Comparing rules for truncating hospital length of stay; Casemix Quarterly 2, n. 1.

See also those for adjbox.

Examples

Run this code
 summary(los) # quite skewed, with median(.) = 8
 plot(table(los))
 boxplot(los, horizontal=TRUE, add=TRUE, col = "red", axes=FALSE)
 ##-> "outliers" instead of "just skewed"

 hist(log(los))
 boxplot(log(los), add=TRUE, col=2, border=2, horizontal = TRUE, at = -1)

 ## Hubert and Vandervieren (2006), p. 15, Fig. 11.
 adjbox(los, col = "gray", staplecol="red", outcol = "red",
        main = "(Skewness-)Adjusted and original boxplot for 'los' data")
 boxplot(los, add = TRUE, staplewex= 0.2, outcex= 0.5, outpch= 4,
         staplecol = "blue", outcol = "blue", staplelwd=2)
 legend("topright", c("adjbox(los)", "boxplot(los)"),
        col=c("red","blue"), lwd = 1:2, bty="n")

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