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Is It Necessary? The Effects of Police Militarization on Police Killings Max Pietrykowski, Will Pickren, Tobias Lafayette Tyranny Comes Home Introduction Following the insights of Coyne and Hall, 2013, Lawson, 2019, and Balko 2013, we expect to see more fatal police encounters as a result of increased militarization. Literature Review Hall, Abi...
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Introduction to Machine Learning Introduction to Machine Learning in R Machine learning is a branch of Artificial Intelligence that studies programs/algorithms that improve, or “learn” through experience. In machine learning, programs/algorithms typically learn to perform tasks such as prediction without being explicitly programmed to do ...
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Train Test Split 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 covariates (X’s) and response (Y), we can do this with a method called regression. ...
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Week 3 - Joins
Joins - Week 3 Illya Mowerman 2/5/2024 What we’ll cover Joins with tidyverse Please load some pakages library(tidyverse) library(AER) data('Affairs') affairs <- Affairs Basic joining verbs for today inner join left join right join semi join anti join (my personal favorite) Additional wrangling verbs pivot_longer pivot_wider inner_join ...
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Fitting Different Models to Data
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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knitr::opts_chunk$set(warning = FALSE, message = FALSE) package pacman::p_load(tidyverse, lubridate, tableone, skimr, duckdb, arrow, RSQLite) データベース FドライブのDatabaseフォルダ内のmimic.dbにアクセスする場合は以下のコード（各自の状況に合わせて適宜修正）。 （mimic.dbが無�...
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（前回までの資料も記載していますが、コードは最低限にしています。復習は前回の資料を参照してください。） package pacman::p_load(tidyverse, lubridate, tableone, skimr, duckdb, arrow, RSQLite) データベース FドライブのDatabaseフォルダ内のmimic.dbにアクセスする�...
3189 sym Python (15433 sym/79 pcs) 3 img 10 tbl
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（前回までの資料も一部記載していますが、コードは最低限にしています。復習は前回の資料を参照してください。） package pacman::p_load(tidyverse, lubridate, tableone, skimr, duckdb, arrow, RSQLite) データベース FドライブのDatabaseフォルダ内のmimic.dbにアクセス�...
3518 sym Python (15958 sym/54 pcs) 2 img