Usage
## S3 method for class 'POSIXt':
hist(x, breaks, \dots,
xlab = deparse(substitute(x)),
plot = TRUE, freq = FALSE,
start.on.monday = TRUE, format, right = TRUE)## S3 method for class 'Date':
hist(x, breaks, \dots,
xlab = deparse(substitute(x)),
plot = TRUE, freq = FALSE,
start.on.monday = TRUE, format, right = TRUE)
Arguments
x
an object inheriting from class "POSIXt"
or "Date"
.
breaks
a vector of cut points or number giving the number of
intervals which x
is to be cut into or an
interval specification, one of "days"
, "weeks"
,
"months"
, "quarters"
or "years"
,
plus "secs"
, "mins"
, "hours"
for
date-time objects.
xlab
a character string giving the label for the x axis, if plotted.
plot
logical. If TRUE
(default), a histogram is
plotted, otherwise a list of breaks and counts is returned.
freq
logical; if TRUE
, the
histogram graphic is a representation of frequencies, i.e,
the counts
component of the result; if FALSE
,
relative frequencies (probabilities) are plotted.
start.on.monday
logical. If breaks = "weeks"
, should the
week start on Mondays or Sundays?
right
logical; if TRUE
, the histogram cells are
right-closed (left open) intervals.