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Tchotchke
Tchotchke has asked
6
questions and find answers to
20
problems.
Stats
448
EtPoint
119
Vote count
6
questions
20
answers
About
Data scientist who primarily uses R, but also has experience with SAS and Python.
Tchotchke questions
data.table: group-by, sum, name new column, and slice columns in one step
Pandas: Sum Previous N Rows by Group
Installing numpy on Mac to work on AWS Lambda
Create a pandas dataframe of counts
Tchotchke answers
glmnet not converging for lambda.min from cv.glmnet
Affinity Propagation Clustering for Addresses
Specify Cross Validation Folds with caret
How to use the for loop with function needing for a string field?
Random Forest with bootstrap = False in scikit-learn python
Survival on binned data
R Supervised Latent Dirichlet Allocation Package
Inconsistent data.table assignment by reference behaviour
Using standard evaluation and do_ to run simulations on a grid of parameters without do.call
GBM R function: get variable importance separately for each class
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