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sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
2018 Feb 08
2
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
...del.matrix(~ . -1, diamonds)) # No more invented factor levels. [1] "carat" "cutFair" "cutGood" "cutIdeal" "cutPremium" "cutVery Good" "colorE" "colorF" "colorG" "colorH" [11] "colorI" "colorJ" "clarityIF" "claritySI1" "claritySI2" "clarityVS1" "clarityVS2" "clarityVVS1" "clarityVVS2" "depth" [21] "table" &q...
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
2018 Feb 08
0
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
...atrix(~ . -1, diamonds)) # No more invented factor levels. > [1] "carat" "cutFair" "cutGood" "cutIdeal" "cutPremium" "cutVery Good" "colorE" "colorF" "colorG" "colorH" > [11] "colorI" "colorJ" "clarityIF" "claritySI1" "claritySI2" "clarityVS1" "clarityVS2" "clarityVVS1" "clarityVVS2" "depth" > [21] "table"...