xiaodai

xiaodai has asked 90 questions and find answers to 13 problems.

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xiaodai questions

How to break a large CSV data file into individual data files?
Git: How do download just a particular commit and not clone the rest of the repository?
Python: How to convert bytes to integer arrays efficiently?
Julia: is there a function to obtain the version number of a package?
How to transform a data frame into a matrix with group values in rows and columns?
How to install R package binaries on Linux just like on Windows?
How do I use col.names and colClasses together in `data.table::fread`?
R: How to use a global variable that clashes with column name a dplyr workflow?
How to return multiple columns from one function inside `mutate` and allow me to name the output columns?
pandas: How to count the unique categories?

xiaodai answers

Python: How to convert bytes to integer arrays efficiently?
How do count unique entities with disk.frame in R?
Convert percentage to letter grade in R
How to define a Vector to have all elements to be of the same type in Julia?
Sort a Julia 1.1 matrix by one of its columns, that contains strings
Embed HTML UI Shiny application in package
How to eliminate JIT overhead in a Julia executable (with MWE)
What is Julia's equivalent of R's which?
Julia DataFrames - How to do one-hot encoding?
Vectorized indexing for a dictionary