9,757 reputation
23683
bio website moderntoolmaking.blogspot.com
location San Francisco, CA
age 28
visits member for 3 years, 9 months
seen 2 hours ago

Oct
17
answered Different results from several “passes” of Random Forest on same dataset
Oct
14
awarded  Notable Question
Oct
13
comment How to make IPF code faster and more concise in R
The development version of ipfp is on github. The c code for the ipfp function is here. If you make any improvements to the function, submit a pull request through github!
Oct
8
awarded  Popular Question
Oct
8
revised R libraries for deep learning
Remove attempted bold in code block
Oct
4
awarded  Popular Question
Sep
30
awarded  Explainer
Sep
29
comment Import stock price from Yahoo Finance into R?
@acabahe It still runs fine for me. Make sure you grab everything from require(quantmod) to the trailing } all by itself on the last line. You'll need to wait at least 5 minutes before you'll see a graph show up.
Sep
22
awarded  Popular Question
Sep
19
answered Training nnet and avNNet models with caret when the output has negatives
Sep
3
awarded  Notable Question
Aug
29
answered R libraries for deep learning
Aug
2
awarded  Notable Question
Jul
29
comment What is this ensemble learning technique called?
@MarcClaesen If your primary modeling goal is predictive accuracy, theoretical properties of individual models is far less important. In this case blending is often an excellent approach: the strengths of one model can make up for the weaknesses of another.
Jul
29
comment What is this ensemble learning technique called?
@user1008537 It is widely used. One easy way to find appropriate weights is through cross-validation. You can do a regression on the held-out data to find the weights. This is called a "second-stage model" or "meta model"
Jul
29
answered What is this ensemble learning technique called?
Jul
24
awarded  Nice Answer
Jul
24
awarded  Enlightened
Jul
24
awarded  Nice Answer
Jul
24
awarded  Necromancer