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母集団の平均値をμとする（通常は未知） 母集団の分散を\({\sigma}^2\)とする（通常は未知） 母集団からランダムサンプリングした集団を「標本」と呼ぶ 標本サイズ＝サンプルサイズ（＝症例数） 標本数＝集団数 この標本から得られる平均値は母集団の平均�...
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Document
母集団の平均値をμとする（通常は未知） 母集団の分散をσとする（通常は未知） 母集団からランダムサンプリングした集団を「標本」と呼ぶ 標本サイズ＝サンプルサイズ（＝症例数） 標本数＝集団数 この標本から得られる平均値は母集団の平均値μの推定...
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7/18に期末テスト@教室 統計的検定(t検定): おさらいの意味も含めて 信頼区間を利用することで、統計的検定を行うことができる。統計的検定とは、とある母集団の性質に関する帰無仮説 \(H_0\) を棄却できるか、対立仮説の方が妥当か否かを検定するもので�...
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Сoursework
Загрузка библиотек и данных library(dplyr) library(lmtest) library(modelsummary) library(ggplot2) library(margins) library(readxl) library(ggpubr) Pyaterochka <- read_excel("/Users/user/Desktop/Курсач/Обраб.данные.ver2/Pyaterochka_results.xlsx", sheet=1) MAGNIT <- read_excel("/Users/user/Desktop/Курса�...
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Presentation
Thesis Title: Non-Stationary Mixed-Frequency Variables in Time Series Models: A New Design Approach Derek Cheng 2023-05-23 Master Theisis done at University Of Oslo master thesis: done by individual 60 ETCs credit: regarding as long Master thesis work to address open-end research question open-end research question = no scholars or researchers ...
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Functions
Functions Outline Loops Functions Loops - For Loops For loops iterate along an input vector, stores the current value of the vector as a variable, and repeatedly evaluates a code chunk until the vector is exhausted. for (i in 1:5) { print(i) } ## [1] 1 ## [1] 2 ## [1] 3 ## [1] 4 ## [1] 5 for (i in 1:8) { print(i) } ## [1] 1 ## [...
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Bechdel Report
The Bechdel Test The Bechdel Test was devised by Alison Bechdel and poses the folowing questions: Does a movie have at least two women? Do any of these women talk to one another? Do they talk about something other than a man? The Bechdel Cartoon https://media.npr.org/programs/atc/features/2008/sep/bechdel/rule_540-4b147460dfbfb89a5e4f5aad992bf3b...
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Document
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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Data Visualization and Manipulation
Data Visualization and Manipulation Part 1: Introduction to tidyverse Tidyverse The tidyverse is a collection of powerful R packages for data science. They include: Reading and saving data: readr Data manipulation: tidyr, dplyr Data visualization: ggplot2 Working with different data structures: tibble, purrr, stringr, forcats You can install...
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Introduction to R Markdown and R Programming
Introduction to R Markdown and R Programming Part 1: 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 computers to aid in da...
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