beaver                 package:boot                 R Documentation

Beaver Body Temperature Data

Description:

     The 'beaver' data frame has 100 rows and 4 columns.  It is a
     multivariate time series of class '"ts"' and also inherits from
     class '"data.frame"'.

     This data set is part of a long study into body temperature
     regulation in beavers.  Four adult female beavers were
     live-trapped and had a  temperature-sensitive radio transmitter
     surgically implanted.  Readings were taken every 10 minutes.  The
     location of the beaver was also recorded and her activity level
     was dichotomized by whether she was in the retreat or  outside of
     it since high-intensity activities only occur outside of the 
     retreat.

     The data in this data frame are those readings for one of the
     beavers on a day in autumn.

Usage:

     beaver

Format:

     This data frame contains the following columns:

     'day' The day number.  The data includes only data from day 307
          and early 308.

     'time' The time of day formatted as hour-minute.

     'temp' The body temperature in degrees Celsius.

     'activ' The dichotomized activity indicator. '1' indicates that
          the beaver is outside of the retreat and therefore engaged in
          high-intensity activity.

Source:

     The data were obtained from

     Reynolds, P.S. (1994) Time-series analyses of beaver body
     temperatures. In _Case Studies in Biometry_. N. Lange, L. Ryan, L.
     Billard,  D. Brillinger, L. Conquest and J. Greenhouse (editors),
     211-228. John Wiley.

References:

     Davison, A.C. and Hinkley, D.V. (1997)  _Bootstrap Methods and
     Their Application_. Cambridge University Press.

