search for: clarityvvs1

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2018 Feb 08
2
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
...ry Good" "colorE" "colorF" "colorG" "colorH" [11] "colorI" "colorJ" "clarityIF" "claritySI1" "claritySI2" "clarityVS1" "clarityVS2" "clarityVVS1" "clarityVVS2" "depth" [21] "table" "price" "x" "y" "z" Can it be made to work correctly for both plain and ordered factors? > sessionInfo() R Under development (unstable) (2...
2009 Dec 16
4
Creating Dummy Variables in R
Hi, I am trying to create a set of dummy variables to use within a multiple linear regression and am unable to find the codes within the manuals. For example i have: Price Weight Clarity IF VVS1 VVS2 500 8 1 0 0 1000 5.2 0 0 1 864 3 0 1 0 340
2018 Feb 08
0
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
...od" "colorE" "colorF" "colorG" "colorH" > [11] "colorI" "colorJ" "clarityIF" "claritySI1" "claritySI2" "clarityVS1" "clarityVS2" "clarityVVS1" "clarityVVS2" "depth" > [21] "table" "price" "x" "y" "z" > > Can it be made to work correctly for both plain and ordered factors? > >> sessionInfo() > R Un...