separate documentations for current spec_plot functions.
diff --git a/man/spec_boxplot.Rd b/man/spec_boxplot.Rd
new file mode 100644
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+++ b/man/spec_boxplot.Rd
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+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/mini_plots.R
+\name{spec_boxplot}
+\alias{spec_boxplot}
+\title{Helper functions to generate inline sparklines}
+\usage{
+spec_boxplot(
+ x,
+ width = 200,
+ height = 50,
+ res = 300,
+ add_label = FALSE,
+ label_digits = 2,
+ same_lim = TRUE,
+ lim = NULL,
+ xaxt = "n",
+ yaxt = "n",
+ ann = FALSE,
+ col = "lightgray",
+ border = NULL,
+ boxlty = 0,
+ medcol = "red",
+ medlwd = 1,
+ dir = if (is_latex()) rmd_files_dir() else tempdir(),
+ file = NULL,
+ file_type = if (is_latex()) "png" else "svg",
+ ...
+)
+}
+\arguments{
+\item{x}{Vector of values or List of vectors of values.}
+
+\item{width}{The width of the plot in pixel}
+
+\item{height}{The height of the plot in pixel}
+
+\item{res}{The resolution of the plot. Default is 300.}
+
+\item{add_label}{For boxplot. T/F to add labels for min, mean and max.}
+
+\item{label_digits}{If T for add_label, rounding digits for the label.
+Default is 2.}
+
+\item{same_lim}{T/F. If x is a list of vectors, should all the plots be
+plotted in the same range? Default is True.}
+
+\item{lim, xlim, ylim}{Manually specify plotting range in the form of
+\code{c(0, 10)}. \code{lim} is used in \code{spec_hist} and \code{spec_boxplot}; \code{xlim}
+and \code{ylim} are used in \code{spec_line}.}
+
+\item{xaxt}{On/Off for xaxis text}
+
+\item{yaxt}{On/Off for yaxis text}
+
+\item{ann}{On/Off for annotations (titles and axis titles)}
+
+\item{col}{Color for the fill of the histogram bar/boxplot box.}
+
+\item{border}{Color for the border.}
+
+\item{boxlty}{Boxplot - box boarder type}
+
+\item{medcol}{Boxplot - median line color}
+
+\item{medlwd}{Boxplot - median line width}
+
+\item{dir}{Directory of where the images will be saved.}
+
+\item{file}{File name. If not provided, a random name will be used}
+
+\item{file_type}{Graphic device. Support \code{png} or \code{svg}. SVG is recommended
+for HTML output}
+
+\item{...}{extraparameters passing to boxplot}
+}
+\description{
+These functions helps you quickly generate sets of sparkline
+style plots using base R plotting system. Currently, we support histogram,
+boxplot, and line. You can use them together with \code{column_spec} to
+generate inline plot in tables. By default, this function will save images
+in a folder called "kableExtra" and return the address of the file.
+}