los {robustbase} | R Documentation

## 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)

### 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).

### Source

The data were kindly provided by A. Marazzi.

Cf. Hubert, M. and Vandervieren, E. (2006), p. 13–15.

### 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

     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")

[Package robustbase version 0.92-7 Index]