Posts

New Pipe in R

You can read more in Michael Barrowman’s post But the basic idea is that using the new pipe |> from the magrittr library is much faster than your old pipe %>%
Last updated on Feb 26, 2021 1 min read R

Randomized Study Design

We can leverage R to create randomized studies using shinysurveys with learnr library("shinysurveys") library("learnr") ou can also use formr to create survey with R.
Last updated on Feb 24, 2021 1 min read R

fix for "cannot allocate vector of size"

More package author’s introduction, please access this link Instead of loading everything at once into your RAM, you divide your data into chunks. To quote author of the disk.frame package: “we go from”R can only deal with data that fits in RAM"
Last updated on Feb 20, 2021 1 min read R

caching for faster Shiny app

To have faster performance with Shiny App, you can pass this command to yoru script. # %>% bindCache()
Last updated on Feb 19, 2021 1 min read R, Data

learnr to guide students

Teaching statistics or data science, we can use learnr package. # library("learnr") To collect data, we can use learnrhash # library("learnrhash") Remember to adjust parameters so your Shinyapp.io can handle the number of students you have in the class.
Last updated on Feb 19, 2021 1 min read R

use dplyr in Python - siuba library

Use siuba library in Python to preserve all your skills from dplyr package in R pip install siuba You can see TidyTuesday for tutorial Or Learn Siuba
Last updated on Feb 19, 2021 1 min read R, Python

Connect WRDS in R

Connect from R to Wharton Research Data Services to set up connection from R to WRDS (here) library(RPostgres) library(tidyverse) # I've set up wrds connection before hand. # Please use your username and password here.
Last updated on Dec 29, 2020 3 min read Finance, Data, marketing, R

flipbooks

Flipbooks can be used for: Education Reference Communication Transparency library(flipbookr) cars %>% filter(speed > 4) %>% ggplot() + aes(x = speed) + #BREAK aes(y = dist) + #BREAK geom_point( alpha = .
Last updated on Dec 20, 2020 1 min read R

psychological experiments

Use jaysire package to build flexible behavioral experiments in R. Why? Better workflow Free Cutomizable remotes::install_github("djnavarro/jaysire")
Last updated on Dec 20, 2020 1 min read R

renv

Check where your package is installed find.package("dplyr") ## [1] "C:/Program Files/R/R-4.0.3/library/dplyr" All projects use the same library path. Then for each project, you need different library dependencies. Intializing a project renv::init() A .
Last updated on Dec 20, 2020 1 min read R