Colonel Beauvel

Colonel Beauvel has asked 36 questions and find answers to 205 problems.

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Colonel Beauvel questions

R find order of a vector
Lasso - Choose the initial point in scikit coordinate descent
Remove lines in dataframe using a list in Pandas
R connect to Thomson Reuters Eikon
Bootstrap multiselect select all options at instanciation
Regression with Lasso, all coeffs are 0
Python pandas - particular merge/replacement
Data.frame filtering
Filter array based on an array of index
Makefile error make (e=2): The system cannot find the file specified

Colonel Beauvel answers

Replace value from other dataframe
How to segment data into two sets using dplyr's setdiff
efficient way to double aggregation for a data frame
Pivoting a large data set
Computationally non tolling algorithm to find min and max of a variable wrt a factor in r in large data frame?
What does multiple %in% in a row test?
Create forecast matrix after rolling window
Frequency of multiple boolean or non-boolean columns in R
Create a list of matrices that measure differences in growth rates in R
Pandas: cumulative functions application