sometimes NA-rows are introduced

[giuseppec]

While fixing my bugs, I found another bug here

setOMLConfig(arff.reader = "RWeka")
dRWeka = getOMLDataSet(1418)
setOMLConfig(arff.reader = "farff")
dFarff = getOMLDataSet(1418) # after each row another NA-rows is introduced

str(dRWeka$data)
#'data.frame':  139 obs. of  9 variables:
# $ A1   : num  0.898 0.866 0.927 0.927 0.917 ...
# $ A2   : num  151 156 149 148 150 ...
# $ A3   : num  37 41 34 27 21 40 17 37 12 39 ...
# $ A4   : num  0.833 0.946 0.952 0.752 0.887 ...
# $ A5   : num  151.3 156.2 114.5 84.2 138.2 ...
# $ A6   : num  34 41 5 3 17 22 14 3 4 10 ...
# $ A7   : num  151 156 145 147 150 ...
# $ A8   : num  36 40 32 26 20 39 16 36 14 38 ...
# $ class: Factor w/ 2 levels "0","1": 2 2 2 2 2 2 2 2 2 2 ...

str(dFarff$data)
#'data.frame':  278 obs. of  9 variables:
# $ A1   : num  0.898 NA 0.866 NA 0.927 ...
# $ A2   : num  151 NA 156 NA 149 ...
# $ A3   : num  37 NA 41 NA 34 NA 27 NA 21 NA ...
# $ A4   : num  0.833 NA 0.946 NA 0.952 ...
# $ A5   : num  151 NA 156 NA 115 ...
# $ A6   : num  34 NA 41 NA 5 NA 3 NA 17 NA ...
# $ A7   : num  151 NA 156 NA 145 ...
# $ A8   : num  36 NA 40 NA 32 NA 26 NA 20 NA ...
# $ class: Factor w/ 2 levels "0","1": 2 NA 2 NA 2 NA 2 NA 2 NA ...

[giuseppec]

Hint: The bug results from the blank lines in the .arff file. The farff package interpretes these blank lines as missing values.

[berndbischl]

the dataset become non-public. joaquin is mailing the structure to me, so we can test this.

[berndbischl]

i got the data, it seems that the DATA was fixed and wrong before. closing