Nominal to numerical wrong convertation

SunnyLotusFloweSunnyLotusFlowe Member Posts: 37  Maven
edited November 2018 in Help
Hello all,

i have some problems with the Nominal to Numerical Operator:

i use the follow data set: 

0 1 2 3 4 5 6 7 8 9 10
30 31 32
33 34 35
36 37 38 39 40 41 42 43 44 45 46

as Dat-Data  ( retail.dat)

My Workflow is:

Read Csv -> Split -> Replace Missing -> Nominal to Numerical

I have set the separation-char to  , (comma) to try the separation with the split-operator. the split operator does his job
and return alle attributes as nominal. now i wanted to convert nominal to numerical and instead of numbers like 30 32 ...
i get the numbers 0 , 1 , 2 ....

Is this a bug or did i something wrong . ???



greetings

Lotus





Answers

  • haddockhaddock Member Posts: 849  Guru
    Synopsis
    Maps all values to real values (usually simply using the internal indices).
  • landland RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 2,525   Unicorn
    Hi,
    as haddock indicates: The operator documentation tells everything. Try to read the documentation of the "parse numbers" operator and you will be enlightened.

    Greetings,
      Sebastian
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