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assertCondition(expr, ..., .exprString = , verbose = FALSE)
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assertCondition(expr, ..., .exprString = , verbose = FALSE)
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}
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}
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\arguments{
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\arguments{
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  \item{expr}{an unevaluated \R expression which will be evaluated via
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  \item{expr}{an unevaluated \R expression which will be evaluated via
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    \code{\link{tryCatch}(expr, ..)}.}
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    \code{\link{tryCatch}(expr, ..)}.}
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  \item{\dots}{\code{\link{character}} strings corresponding to the
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  \item{classes, \dots}{\code{\link{character}} strings corresponding to the
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    classes of the conditions that would satisfy the assertion; e.g., \code{"error"} or
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    classes of the conditions that would satisfy the assertion; e.g., \code{"error"} or
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    \code{"warning"}.  If none are specified, any condition will
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    \code{"warning"}.  If none are specified, any condition will
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    satisfy the assertion.  See the details section. }
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    satisfy the assertion.  See the details section. }
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  \item{.exprString}{The string to be printed corresponding to
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  \item{.exprString}{The string to be printed corresponding to
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    \code{expr}. By default, the actual \code{expr} will be
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    \code{expr}. By default, the actual \code{expr} will be