fixed vignette

vignettes/STARSmanual.ltx

@@ -6,6 +6,7 @@
 \usepackage{natbib}
 \usepackage{graphicx}
 \usepackage{caption}
+\usepackage{subcaption}
 
 \title{\texttt{rshift} STARS manual - regime shift analysis for paleoecological data\\v2.2.2}
 
@@ -95,7 +96,7 @@ The other 3 variables are optional:
     If merge = TRUE, returns the original dataset with an extra RSI column, giving the RSI for each time unit - 0 for non-shift years.
 \end{itemize}
 So, as an example, we will reproduce the data from the Rodionov paper. Rodionov uses the Pacific Decadal Oscillation (PDO) as his dataset, a measure of climate
-variability over the Pacific Ocean (see \citet{mantua2002pacific} for more details). This is available in the \texttt{rshift} package as the dataset \texttt{January_PDO}.
+variability over the Pacific Ocean (see \citet{mantua2002pacific} for more details). This is available in the \texttt{rshift} package as the dataset \texttt{January\_PDO}.
 To load it, ensure that `rshift' has been imported into your R session (with \texttt{library(rshift)}) and then run \texttt{data(January\_PDO)} to 
 load the data into your session. We then can run the STARS algorithm in the simplest way with the following line of code:
 
@@ -118,16 +119,16 @@ RSI_graph(RSI_data, "DCA1", "Age", "RSI"))
 It takes the data, variable column and chronology like before, but you must also specify the name of the column with RSI values in (which \texttt{Rodionov()} automatically creates as 'RSI'). \newpage
 \begin{figure}[!h]
 \centering
-\begin{subfigure}[b]{0.3\textwidth}
+\begin{subfigure}[b]{\textwidth}
     \centering
     \includegraphics[width=\textwidth]{rshift_PDO_plot.png}
 \end{subfigure}
 \vfill
-\begin{subfigure}[b]{0.3\textwidth}
+\begin{subfigure}[b]{\textwidth}
     \centering
     \includegraphics[width=\textwidth]{Rodionov_graph.png}
 \end{subfigure}
-\caption{}
+\caption{The RSI plot generated by \texttt{rshift}, and the plot of the same data from \citet{rodionov2004sequential}.}
 \end{figure}
 \newpage
 \section{Evaluating use of STARS}