Ying Ji's website
  • About Me
    Introduction Resume Publications
  • Posts
  • Contact

My website


This is where I will tell my friends way too much about me

What does "big data ecosystem" mean?

scratch the surface of hadoop!

Posted on December 31, 2019

Lately, I’ve seen these words a lot: “big data ecosystem”, “hadoop”, “spark”, “mapreduce”, “hive”, “pig” etc. [Read More]
Tags: tools

Have some frequent use code templates?

Snippets can help!

Posted on October 13, 2019

I’ve been having this question for so long: is there some ways I can save my own code templates? [Read More]
Tags: tools

How to measure the value of an added independent variable in binary logistic regression models?

About AUC, peudo-R2, likelihood ratio test

Posted on September 27, 2019

We often predict the probability of occurence of binary outcomes: e.g. cases or controls using logistic regressions. [Read More]
Tags: stats

Notes on linear model improvement

special focus on Ridge and Lasso

Posted on September 16, 2019

Although there are many nonlinear “fancy” models, we know linear models still have advantages in inference and works well in real world. [Read More]
Tags: statistics

How to merge many files into a big dataframe in R?

save lots of typing

Posted on September 8, 2019

At work, sometimes we need to combine and analysis information from lots of output files together. [Read More]
Tags: R
  • ← Newer Posts
  • Older Posts →
  • GitHub
  • Twitter
  • LinkedIn

Ying Ji  •  2021

Theme by beautiful-jekyll