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practical - Week 1 2023-08-23 Practical 1: HTML Headings Practice Instructions: Create a new HTML file named headings_practice.html using a text editor or integrated development environment (IDE). Begin with the basic HTML structure: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width...
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Analysis of Washington State Schools
Washington State Schools Analysis An Analysis of Enrollment, Assessment, & Graduation John Morse 2023-08-13 Introduction Recent economic, political, and health related events in the United States have impacted much of our life, including education. As a parent of two teenagers, I have had a front-row seat to changes in education for the past 20+ y...
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knitr::opts_chunk$set(warning = FALSE, message = FALSE) package RSQLiteをインストール＆ロードすると、自動的にDBIパッケージ（RでDataBaseを扱う際に必要なパッケージ）が使えるようになる。 pacman::p_load(tidyverse, RSQLite, lubridate, tableone, skimr) データベース FドライブのRSQLiteフォル...
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Test Flex Dashboards
Pages Page 1 Column Chart 1 Column Chart 2 Page 2 Column Chart 3 Column Chart 4 Page 3 Column Chart 3 Chart 4...
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pacman::p_load(tidyverse, plotly, FactoMineR) カイ二乗分布と自由度 正規分布の2乗を足し合わせた分布を書いてみる # 1個 hist(rnorm(10000)^2, breaks = 20) # 2個 hist(rnorm(10000)^2 + rnorm(10000)^2, breaks = 20) # 3個 norm_3 <- rnorm(10000)^2 + rnorm(10000)^2 + rnorm(10000)^2 hist(norm_3, breaks = 20) #8 norm...
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pacman::p_load(tidyverse) カイ二乗分布と自由度 不偏分散の分布は？ 前回、中心極限定理（推定平均値の分布について）を理解した。 次に不偏分散\(\hat{\sigma}^2\)の分布を考える \[ \hat\sigma^2 = \frac{1}{n-1} \sum_{i=1}^{n} (x_i - \bar{x})^2 \] 分子は正規分布の2乗を足し合わせ�...
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Simulation and Functions Outline Simulation Loops Functions Simulation Outline Why simulate? How to simulate? Goal: Learn how to use simulation to answer statistical questions! Why Simulate? In science, how do we support or refute a hypothesis? We run an experiment! Experiments let us work in a setting where we have precise control Often...
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Fitting Models to Data Linear Models Terminology/Definitions Correlation is a statistical technique that can show whether and how strongly pairs (strength) of variables are related. For example, height and weight are related; taller people tend to be heavier than shorter people. The coefficient of determination is the proportion of the varia...
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Introduction to R Markdown and R Programming Part 1: Statistical Computing What is statistical computing? Statistics + Computing There are many, many statistical packages, see http://en.wikipedia.org/wiki/List_of_statistical_packages In this class, we will discuss some basic computer science concepts, but we will emphasize skills for utilizing ...
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Statistical Prediction and Optimization Statistical Prediction and Optimization Statistical Prediction Outline Training and Testing Cross-validation Goal: Learn the concepts, terminology, and techniques in statistical prediction! Part 1: Training and Testing Recall: Regression We want to know the relationship between our covariates (X’s) ...
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