Buy low sell high on big tech stocks?

R
tidyTuesday
I am interested in Big Tech Stock Prices since I personally hold several big Tech stocks and experienced bloody plummeting in the last year. As an amateur investor, I have been always questioning my investing…
Feb 18, 2023
31 min

Understanding survival analysis - part 1

Evaluate patient survival using TCGA BRCA cohort
statistics
R
bioinformatics
I have been performing survival analysis for a while. Although I can create standard survival curves and summarize hypothesis testing tables, I have never really UNDERSTOOD it until recently. In this post, I will share some of my study notes to dive into the concepts, assumptions, deduction and result interpretations on survival analysis…
Jan 16, 2023
9 min

TidyTuesday: Open Psychometrics 2022Wk33

MacOS
R
TidyTuesday 2022-08-16
Nov 2, 2022
2 min

Install multiple versions of R in MacOS

MacOS
R
Whenever there is new release of R at CRAN, I am always tempted to install the new version so that I can use the fancy new tools. However, switch to new version of R is…
Oct 31, 2022
2 min

Use API in R and solve common errors

R
API
An API…
Oct 26, 2022
3 min

Interpreting the coefficients of Generalized Linear Model

R
GLM
tidymodels
Linear model is the most popular model used in various of fields, due to its…
Feb 28, 2022
12 min

TidyTuesday: predict chocolate rating with xgboost

R
tidyTuesday
tidymodels
Load required libraries
Jan 23, 2022
8 min

TidyTuesday: predict ultra race time

R
tidyTuesday
tidymodels
Load required libraries
Nov 2, 2021
7 min

Taking options from command line

R
bash
perl
Taking in options from command line is an essential step towards generalized usage of scripts. However, it…
Aug 22, 2020
21 min

Transition from dplyr to data.table

R
data wrangle
dplyr and tidyr have totally changed the way we code in R. I particularly love the pipe %>% which comes from magrittr package and makes the code easy to…
Jun 25, 2020
5 min

ML pipeline with tidymodels vs. caret

R
ML
tidymodels
As a DS beginner, I first came across ML in R by studying the book Hands-On Machine Learning with R. The book mainly focuses on the package caret with general…
Apr 30, 2020
12 min

External persistent data I/O using ShinyApp

R
shiny
Shiny App is a fantastic application in Rstudio and makes the data processing more accessible (and fun!). Most easy shiny apps are made to represent data based on a given…
Mar 30, 2020
32 min

All about git

bash
git
Recently I have actively participated two team projects (PAWS and 2020datahack) which involves multiple team members and a lot of group decisions. For the first time, I…
Feb 11, 2020
8 min

Network visualization - Part 3

R
network
visualization
In the previous two…
Sep 4, 2019
7 min

Network Analysis in R - Part 2

R
network
In last post, I covered the basic components of IGRAPH objects and how to manipulate IGRAPH. You may notice that most of…
Aug 24, 2019
4 min

Network Analysis in R - Part 1

R
network
Network analysis…
Jul 11, 2019
9 min
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