On 6/1/05, Earl F. Glynn <[EMAIL PROTECTED]> wrote: > "Berton Gunter" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > summary() is an S3 generic that for your vector dispatches > > summary.default(). The output of summary default has class "table" and so > > calls print.table (print is another S3 generic). Look at the code of > > print.table() to see how it formats the output. > > "Marc Schwartz" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > On Tue, 2005-05-31 at 17:14 -0500, Earl F. Glynn wrote: > > > > Why isn't the number of NA's just "2" instead of the "2.000" shown > above? > > > "The same number of decimal places is used throughout a vector > > I'm talking about how this should be designed. The current impementation > may be to print a vector using generic logic, but why use generic logic to > produce a wrong solution? Shouldn't correctness be more important than using > a generic solution? > > There is special logic to suppress NA's when they don't exist (see below), > so why isn't there special logic to print the count of NAs, which MUST be an > integer, correctly when they do exist? > > An integer should NOT be displayed with meaningless decimal places. Why > would this ever be desirable? The generic solution should be dropped in > favor of a correct solution. > > # Why not use special logic to show the number of NA's correctly as an > integer? > > set.seed(19) > > summary( c(NA, runif(10,1,100), NaN) ) > Min. 1st Qu. Median Mean 3rd Qu. Max. NA's > 7.771 24.850 43.040 43.940 63.540 83.830 2.000 > > # There is already special logic to suppress NA's > > set.seed(19) > > summary( runif(10,1,100) ) > Min. 1st Qu. Median Mean 3rd Qu. Max. > 7.771 24.850 43.040 43.940 63.540 83.830 > > "2.000" and "2" do not have equivalent meaning.
Try: R> library(Hmisc) R> describe( c(NA, runif(10,1,100), NaN) ) c(NA, runif(10, 1, 100), NaN) n missing unique Mean .05 .10 .25 .50 .75 .90 10 2 10 50.99 15.24 16.82 21.14 52.70 76.35 83.52 .95 90.79 13.65 17.17 18.12 30.18 46.21 59.19 65.36 80.01 81.90 98.06 Frequency 1 1 1 1 1 1 1 1 1 1 % 10 10 10 10 10 10 10 10 10 10 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html