[R] Different decimal places in a matrix

[(Ted Harding)]

On 29-Jul-10 09:08:22, Nicola Sturaro Sommacal wrote:
> Hi!
> I have a ftable object in which some row contains integers and
> some other contains a percentage that I would like to show with
> two digits after the dot.
> 
> I tried something like
> ftblP[index,] = as.character(round(ftblP[index,],2))
> where the index vector contains the number of the rows containing a
> percentage. My workaround works but it shows all numbers aligned to
> left, while I prefer that number will be aligned "correctly" (to
> the right).
> 
> It is possible?
> 
> Thanks in advance.
> Nicola S.

Interesting question! I take it you want to see something like

  49      21     166
  12.21    6.75   49.65

The "raw" approach I would suggest is to "pack" the integers
on the right with 3 blanks. I think it should be possible to
do this with sprintf(). using different 'fmt' specifications
for the "integer" rows and the "percentage" rows, and using
cat() to output the results. However, I don't have time right
now to explore the details of how it might be done. Sorry.

Ted.

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Date: 29-Jul-10                                       Time: 10:25:33
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