--- /dev/null
+\names{where}
+\alias{where}
+\title{Find Patterns in DNA Sequences}
+\description{
+ This function finds patterns in a single or a set of DNA sequences.
+}
+\usage{
+where(x, pattern)
+}
+\arguments{
+ \item{x}{an object of class \code{"DNAbin"}.}
+ \item{pattern}{a character string to be searched in \code{x}.}
+}
+\details{
+ If \code{x} is a vector, the function returns a single vector giving
+ the position(s) where the pattern was found. If \code{x} is a matrix
+ or a list, it returns a list with the positions of the pattern for
+ each sequence.
+
+ Patterns may be overlapping. For instance, if \code{pattern = "tata"}
+ and the sequence starts with `tatata', then the vector returned will
+ be c(1, 3).
+}
+\value{
+ a vector of integers or a list of such vectors.
+}
+\author{Emmanuel Paradis}
+\seealso{
+ \code{\link{DNAbin}}, \code{\link{image.DNAbin}}
+}
+\examples{
+data(woodmouse)
+where(woodmouse, "tata")
+}
+\keyword{manip}