Displaying 3 results from an estimated 3 matches for "clarityif".
2018 Feb 08
2
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
..." "cutFair" "cutGood" "cutIdeal" "cutPremium" "cutVery Good" "colorE" "colorF" "colorG" "colorH"
[11] "colorI" "colorJ" "clarityIF" "claritySI1" "claritySI2" "clarityVS1" "clarityVS2" "clarityVVS1" "clarityVVS2" "depth"
[21] "table" "price" "x" "y" "z&qu...
2018 Feb 08
0
sparse.model.matrix Generates Non-Existent Factor Levels if Ord.factor Columns Present
...; "cutFair" "cutGood" "cutIdeal" "cutPremium" "cutVery Good" "colorE" "colorF" "colorG" "colorH"
> [11] "colorI" "colorJ" "clarityIF" "claritySI1" "claritySI2" "clarityVS1" "clarityVS2" "clarityVVS1" "clarityVVS2" "depth"
> [21] "table" "price" "x" "y" "...
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