Ben

Ben has asked 126 questions and find answers to 39 problems.

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About

Founder of Practice Probs - a platform for learning programming via fun challenge problems.

Ben questions

Error exposing c++ class method with reference parameter using Rcpp modules
RunTimeWarning: Invalid value encountered in greater [duplicate]
Why does gbm() give different results than h2o.gbm() in this minimal example?
Efficient way to apply function to each row of data frame and return list of data frames
How can I change extended file properties using vba
How to make concurrent HTTP requests with basic authentication
How to calculate multivariate normal distribution function in R
How to get the complement of a subset of a data table?
R - data.table rolling join confusion
How can I select rows from table A whose id matches those from table B, but whose (non id) values are different?

Ben answers

R: how to obtain unique pairwise combinations of 2 vectors [duplicate]
How to fill values of a (2,3,4) array using a (2,3) array of indices and a (2,3) array of new values
How to use custom cross validation folds with XGBoost
How to run a "hello world" python script with Google Cloud Run
CORS error with 2nd gen Cloud Functions for Firebase
How can i plot binary tree with 13 nodes in R Studio
Check if a value in one table (X) is between the values in two columns in another table (Y) with R data.table
Expose simple C++ Student class to R using Rcpp modules
Why does geocode keep returning the wrong address but Google Maps works correctly
numpy elementwise outer product