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\arguments{
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25 |
\arguments{
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| 26 |
\item{x}{a vector of values for which the histogram is desired.}
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\item{x}{a vector of values for which the histogram is desired.}
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\item{breaks}{one of:
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27 |
\item{breaks}{one of:
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\itemize{
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\itemize{
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\item a vector giving the breakpoints between histogram cells,
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\item a vector giving the breakpoints between histogram cells,
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| - |
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\item a function to compute the vector of breakpoints,
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\item a single number giving the number of cells for the histogram,
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\item a single number giving the number of cells for the histogram,
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\item a character string naming an algorithm to compute the
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32 |
\item a character string naming an algorithm to compute the
|
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number of cells (see \sQuote{Details}),
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number of cells (see \sQuote{Details}),
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\item a function to compute the number of cells.
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\item a function to compute the number of cells.
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}
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}
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In the last three cases the number is a suggestion only.
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In the last three cases the number is a suggestion only. If
|
| - |
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37 |
\code{breaks} is a function, the \code{x} vector is supplied to it
|
| - |
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38 |
as the only argument.
|
| 36 |
}
|
39 |
}
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\item{freq}{logical; if \code{TRUE}, the histogram graphic is a
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40 |
\item{freq}{logical; if \code{TRUE}, the histogram graphic is a
|
| 38 |
representation of frequencies, the \code{counts} component of
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41 |
representation of frequencies, the \code{counts} component of
|
| 39 |
the result; if \code{FALSE}, probability densities, component
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42 |
the result; if \code{FALSE}, probability densities, component
|
| 40 |
\code{density}, are plotted (so that the histogram has a total area
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43 |
\code{density}, are plotted (so that the histogram has a total area
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| 117 |
are supplied are \code{"Scott"} and \code{"FD"} /
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120 |
are supplied are \code{"Scott"} and \code{"FD"} /
|
| 118 |
\code{"Freedman-Diaconis"} (with corresponding functions
|
121 |
\code{"Freedman-Diaconis"} (with corresponding functions
|
| 119 |
\code{\link{nclass.scott}} and \code{\link{nclass.FD}}).
|
122 |
\code{\link{nclass.scott}} and \code{\link{nclass.FD}}).
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Case is ignored and partial matching is used.
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123 |
Case is ignored and partial matching is used.
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Alternatively, a function can be supplied which
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124 |
Alternatively, a function can be supplied which
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will compute the intended number of breaks as a function of \code{x}.
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125 |
will compute the intended number of breaks or the actual breakpoints
|
| - |
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126 |
as a function of \code{x}.
|
| 123 |
}
|
127 |
}
|
| 124 |
\value{
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128 |
\value{
|
| 125 |
an object of class \code{"histogram"} which is a list with components:
|
129 |
an object of class \code{"histogram"} which is a list with components:
|
| 126 |
\item{breaks}{the \eqn{n+1} cell boundaries (= \code{breaks} if that
|
130 |
\item{breaks}{the \eqn{n+1} cell boundaries (= \code{breaks} if that
|
| 127 |
was a vector). These are the nominal breaks, not with the boundary fuzz.}
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was a vector). These are the nominal breaks, not with the boundary fuzz.}
|
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