figure caption in r markdown
--- title: "Plotting" author: "xx" date: '2015-08-10' output: pdf_document --- ```{r figs, echo=FALSE, fig.width=7,fig.height=6,fig.cap="plotting example"} par(mfrow=c(2,2)) plot(1:10, col=2) plot(density(runif(100, 0.0, 1.0))) plot(runif(100, 0.0, 1.0),type="l") ``` in Figure \ref{fig:figs} we see examples of plotting in R.