setting up the type node hw3

setting up the type node hw3

by Laura Koth -

Target variables:
31 G1 - first period grade (numeric: from 0 to 20)
31 G2 - second period grade (numeric: from 0 to 20)
32 G3 - final grade (numeric: from 0 to 20, output target)

does this mean that the other two “target var” , G1 and G2 are not coded as “target" in the type node? even though they are listed under "target var"???


retracting question. Homework explains it later in the text

by Laura Koth -

see subject line

Re: setting up the type node hw3

by Dave Glidden -

I regret referring to G2 and G1 as "targets". They are never predicted.

In questions, 5-7 G3 is the target variable

In questions 8-12 Pass3 (based on a recoding of G3) is the target variable.

G1 is always set to "none". In questions 7, 11, 12  G2 is sometimes used as input variable.


Re: setting up the type node hw3

by Nafeesa Moksud -

Then for the steps before "Classification" (steps 3-7) should Pass3 be set to 'none', since according to the question the derived node will be used later? 

Otherwise, Pass3 shows up as an effector variable for G3 in the previous subset of questions, which makes no sense.

Re: setting up the type node hw3

by Chuck Mcculloch -

Correct.  You don't want to use the Pass variables as predictors (input) when the outcome (target) is G3.   That can be set using a Type node just before you fit a model.