Question

I would like R to display floating point numbers only a small amount of digits after the decimal dot.
much like “format short” would do in matlab.

Is there a simple way to do that?

Answer 1

You can either use an ad-hoc conversion through either formatC, sprintf or format

    ?formatC
    formatC(.000000012, format='fg')
    [1] "0.000000012"

    ?sprintf
    sprintf("%.10f", 0.0000000012)
    [1] "0.0000000012"

    format(.0000012, scientific=FALSE)
    [1] "0.0000012" 

or you set the digits option:

    options(digits=10)

or the scipen option:

    options(scipen=10)