.BG
.FN signif
.TL
signif: Round Data to Show Significant Digits
.CS
signif(x, digits)
.PP
.AG x
vector of data to be rounded.
Missing values (NAs) are allowed.
.AG digits
number of significant digits to be retained in the
rounded values of `x'.
Default 6.
.RT
rounded values of `x'.
The difference between the functions `round' and `signif' is that
`round' produces a specified number of decimal places
where `signif' produces a specified number of significant digits.
.EX
x <- c(123456, .123456, .000123456)
round(x,3)  # produces
      123456.0         0.123       0.0
signif(x,3)  # produces
      1.23e5   1.23e\-1  1.23e\-4
.KW rounding
.KW math
.KW basic*
.WR
