Reducing a Dataset on an Attribute

choose_usernamechoose_username Member Posts: 33 Maven
edited November 2018 in Help
Hi there,

i wanna measure the influence of an certain attribute on a class. The problem is that this attribute has 2 instancetypes (A and B) and that A occures 80% and B occures 20 %.  I want to filter that Data set to get approx.  20 % and 20 % occurences of A and B (randomly choosen).

Does anyone knows a Operator-Combination that can reduce the Data set, only having 20 % A and 20 % B?

thanks in advance



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