Building models with SAS Enterprise Miner, SAS Factory Miner, SAS Visual Data Mining and Machine Learning or just with programming

Decision Tree Output- difference between "Validated:Target_B=1" and "Predicted: Target _B=1"

Accepted Solution Solved
Reply
New Contributor
Posts: 2
Accepted Solution

Decision Tree Output- difference between "Validated:Target_B=1" and "Predicted: Target _B=1"

Hello,
I'd be grateful to have some clarity regarding these two variables that are created after running a Decision Tree to predict a binary target,-
1) label "Validated:Target_B=1" with Variable name "V_TARGET_B1" and,
2)label "Predicted:Target_B=1" with Variable name "P_TARGET_B1"
There seems to be a small difference between the above two p values mostly corresponding to the third digit after the decimal. What is the difference between these variables. I find them in both the training and the validation datasets of the output.
Thanks in advance,
Ravi.

Accepted Solutions
Solution
‎12-20-2016 04:10 AM
SAS Super FREQ
Posts: 306

Re: Decision Tree Output- difference between "Validated:Target_B=1" and "Predicted: T

The V_ variables are the predictions based on the validation data - so the proportion of validation obs. in the leaf with target=B1 for whatever leaf the current observation is in.  The P_ is the same thing but using the training partition, and the actual prediction is based on this value.

View solution in original post


All Replies
Solution
‎12-20-2016 04:10 AM
SAS Super FREQ
Posts: 306

Re: Decision Tree Output- difference between "Validated:Target_B=1" and "Predicted: T

The V_ variables are the predictions based on the validation data - so the proportion of validation obs. in the leaf with target=B1 for whatever leaf the current observation is in.  The P_ is the same thing but using the training partition, and the actual prediction is based on this value.

☑ This topic is solved.

Need further help from the community? Please ask a new question.

Discussion stats
  • 1 reply
  • 258 views
  • 1 like
  • 2 in conversation