> Have I been sleeping in class? > > rw1071 from CRAN, windows XP > > incidencia is made by a call to tapply > > > class(incidencia) > [1] "array" > > incidencia <- unclass(incidencia) > > class(incidencia) > [1] "array" > >
`unclass' only removes the `class' attribute. However, arrays do not own one (see the details in ?class) but its class is defined implicitly: R> x <- array(rnorm(25), dim=c(5,5)) R> mode(x) [1] "numeric" R> class(x) [1] "matrix" R> attributes(x) $dim [1] 5 5 so nothing to remove here, in contrast to data.frames: R> x <- as.data.frame(matrix(rnorm(25), ncol=5)) R> attributes(x) $names [1] "V1" "V2" "V3" "V4" "V5" $row.names [1] "1" "2" "3" "4" "5" $class [1] "data.frame" R> unclass(x) $V1 [1] 1.4085747 0.2405006 0.7056615 -0.4747142 0.5846174 $V2 [1] 1.06994019 -0.26797839 -0.54426997 -3.34744272 0.05473644 $V3 [1] -0.75277466 0.05542274 -1.13621279 1.06582063 -1.04080035 $V4 [1] 0.3942039867 -0.2680249001 0.0002451802 -2.4269886369 0.8719898617 $V5 [1] 1.186167 0.374248 0.832176 1.030344 -1.606450 attr(,"row.names") [1] "1" "2" "3" "4" "5" Best Torsten > Kjetil Halvorsen > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
