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--- documents:111012rtricks [2012/02/14 22:21] – kota
+++ documents:111012rtricks [2016/05/24 12:46] – external edit 127.0.0.1
@@ Line 77: / Line 77: @@
 }
 </sxh>
+===== Inserting math formula & symbols in label or title =====
+The easiest way is to use function //expression()//. For example,
+<code>
+plot(back$V2, type='l', xlab=expression(slice %.% time), ylab='intensity', xaxt="n", yaxt="n")
+</code>
+Inserts vertically centered dot in the x label between "slice" and "time". You could check other available expressions by
+<code>
+?plotmath
+</code>
+More recent, but under development is using [[http://cran.r-project.org/web/packages/tikzDevice/|tikzDevice]].
+===== Variable Name to String =====
+<code>
+myfunc <- function(v1) {
+  deparse(substitute(v1))
+}
+myfunc(foo)
+[1] "foo"
+</code>