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 % Generated by roxygen2: do not edit by hand  % Please edit documentation in R/numeric.R  \name{trapz}  \alias{trapz}  \title{Calculate area under a curve}  \usage{  trapz(x, y)  }  \arguments{  \item{x}{vector (of length n)}    \item{y}{vector (of length n)}  }  \value{  vector (of length n - 1)  }  \description{  Numerically calculate area under an arbitrary curve (defined by x, y coord pairs)  using trapezodial integration. See Wikipedia for more info on trapz integration.  }