一、介绍
Turn unevaluated expressions into character strings.
将表达式转换为字符串
二、用法
deparse(expr, width.cutoff = 60L,
backtick = mode(expr) %in%
c("call", "expression", "(", "function"),
control = c("keepInteger", "showAttributes", "keepNA"),
nlines = -1L)
三、例子
