Currently reading articles under label: DT

R DT data.table Join

This is part of PML notes. HDD: r_data_table_start

Prepare Data

library(dplyr)

library(readr)

library(data.table)

hero = "

name, alignment, gender, publisher

Magneto, bad, male, MarvelDuplicate

Storm, good, female, MarvelDuplicate

Batman, good, male, ......

Notes of Practical Machine Learning (Coursera PML)

It has been a long time since I started using R. Recently, I found some old notes, and I prefer to put it in digital archive, this blog post is to achieve the purpose.

DT (data.table)

data.table cheat sheet

This data.table (DT) instruction is also available on my github, ispiared by

this ref

//T......