\method{print}{prop.part}(x, ...)
\method{summary}{prop.part}(object, ...)
\method{plot}{prop.part}(x, barcol = "blue", leftmar = 4, ...)
\method{print}{prop.part}(x, ...)
\method{summary}{prop.part}(object, ...)
\method{plot}{prop.part}(x, barcol = "blue", leftmar = 4, ...)