http://jystatistics.rbind.io/ Recent content in Home on Jongyun Jung Hugo -- gohugo.io en-us Thu, 28 Jun 2018 00:00:00 +0000 http://jystatistics.rbind.io/post/2018/06/28/study-ggplot2/ Thu, 28 Jun 2018 00:00:00 +0000 http://jystatistics.rbind.io/post/2018/06/28/study-ggplot2/ Day 1 Facetting Plot Geoms Adding a Smoother to a Plot Modifying the Axes Day 1 This is the self-study of ggplot2 book by myself. All this material are from the book of ggplot2. # Loading the package of ggplot2 library(ggplot2) # Read the data set 'mpg' mpg ## # A tibble: 234 x 11 ## manufacturer model displ year cyl trans drv cty hwy fl ## <chr> <chr> <dbl> <int> <int> <chr> <chr> <int> <int> <chr> ## 1 audi a4 1. http://jystatistics.rbind.io/teaching/stat154_01/ Mon, 01 Jan 0001 00:00:00 +0000 http://jystatistics.rbind.io/teaching/stat154_01/ Stat 154: Elementary Statistics class: center, middle, inverse, title-slide # Stat 154: Elementary Statistics ## Minnesota State University, Mankato ### Jongyun Jung --- # What is Statistics? - It is the discipline of how to collect, organize, analyze and draw conclusions from data. - It is a science of gaining knowledge of a fact, often by using sample data, and often the decision is made with uncertainty. http://jystatistics.rbind.io/post/1/01/01/ Mon, 01 Jan 0001 00:00:00 +0000 http://jystatistics.rbind.io/post/1/01/01/ Ch 7. Sufficiency 1. Measures of Quality of Estimators 2. A Sufficient Statistics for a Parameter In this post, I would like to write about Sufficiency. Here is the plan for this post. Ch 7. Sufficiency 1. Measures of Quality of Estimators Consider a point estimator \(Y_n = u(X_1, \cdots, X_n)\) based on a sample \(X_1, \cdots, X_n\). There is a several properties of point estimators: http://jystatistics.rbind.io/about/ Mon, 01 Jan 0001 00:00:00 +0000 http://jystatistics.rbind.io/about/ My name is Jongyun Jung and I’m a statistician and data scientist. I’m a husband of my partner Borami Kang and a father of my son Joshua Jiwoo Jung.