a `data.frame` with `100` observations containing variables `region`,
`gender`, `ecoOld`, `ecoNew` and `numVal`.
Examples
utils::data("microdata2", package ="sdcTable")head(microdata2)#> region gender ecoOld ecoNew numVal#> 1 R1 f Aa Cc 17#> 2 R1 f Bb Dc 15#> 3 R1 f Ab Cc 5#> 4 R1 f Aa Cb 11#> 5 R1 f Bb Dc 20#> 6 R1 f Ab Cb 10