Publications by Zhi Ying Chen (Sec#1), Mengqin Cai (Sec#3), Fan Xu (Sec#4), Sin Ying Wong (Sec#4)
DATA605_Assignment 12
Code Show All Hide All DATA605 ASSIGNMENT 12 1 Introduction to Data Set 2 Question 1 2.1 Load Data 2.2 Scatterplot & Linear Regression: LifeExp vs TotExp 2.3 Interpretation of Summary Statistics 2.4 Testing assumptions of Linear Regression 3 Question 2 3.1 Scatterplot & Linear Regression: LifeExp^4.6 vs TotExp^0.06 3.2 Interpretation of Summ...
7824 sym R (6820 sym/23 pcs) 7 img
Data622 Test1
Code Show All Hide All DATA622 TEST 1 1 Instruction 2 Data Set 3 Train-Test-Split 4 Modeling with Bagging 4.1 Train Model 4.2 Accuracy on Predicton 4.2.1 Make Prediction 4.3 Comfusion Matrix and Statistics for Testing Set 5 Modeling with LOOCV 5.1 Train Model 5.2 Make Prediction 5.3 Comfusion Matrix and Statistics for Testing Set 6 Perform...
2582 sym R (4776 sym/16 pcs)
DATA605_Assignment 11
Code Show All Hide All DATA605 ASSIGNMENT 11 1 Question 1 1.1 Load Dataset 1.2 Visualization 1.3 Build Simple Linear Model 1.4 Quality Evaluation of Model 1.5 Residual Analysis 1.6 Rebuid a Model Without Outliners Fan Xu 11/8/2020 library(tidyverse) 1 Question 1 Using the “cars” dataset in R, build a linear model for stopping distanc...
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DATA605_Assignment 10
Code Show All Hide All DATA605 ASSIGNMENT 10 1 Question 1 1.1 Part (a) 1.2 Part (b) 1.3 Part (c) Fan Xu 11/1/2020 library(tidyverse) 1 Question 1 Smith is in jail and has 1 dollar; he can get out on bail if he has 8 dollars. A guard agrees to make a series of bets with him. If Smith bets A dollars, he wins A dollars with probability .4 a...
1600 sym R (95 sym/5 pcs)
DATA622 HW2
Code Show All Hide All DATA 622 - Home Work 2 - Finding the Best Model 1 Load Package 2 Part-A 2.1 Step 0 2.1.1 Load Dataset 2.1.2 Data Profiling 2.1.3 Pick Two Classifiers 2.2 Step 1 2.3 Step 2 2.3.1 Convert Class Label to Factor Representation 2.3.2 Train Test Split 2.3.3 Warpper for Generate Models and Metrics 2.3.4 Naive Bayes 2.4 Step ...
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DATA605_Assignment 15
Code Show All Hide All DATA605 ASSIGNMENT 15 1 Question 1 1.1 Answer 2 Question 2 2.1 Answer 3 Question 3 3.1 Step 1 3.2 Step 2 4 Question 4 4.1 Answer 5 Quetsion 5 5.1 Answer Fan Xu 12/13/2020 library(tidyverse) library(tidymodels) library(gridExtra) 1 Question 1 Find the equation of the regression line for the given points. Round...
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DATA608_Assignment 1
Code Show All Hide All DATA 608 - HOMEWORK 1 0.1 Question 1 0.2 Quesiton 2 0.3 Question 3 Fan Xu 2/14/2021 library(tidyverse) Principles of Data Visualization and Introduction to ggplot2 I have provided you with data about the 5,000 fastest growing companies in the US, as compiled by Inc. magazine. lets read this in: inc <- read.csv("htt...
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DATA624_Homework 1
Code Show All Hide All DATA 624 - HOMEWORK 1 1 Question - 2.1 1.1 a. 1.2 b. 1.3 c. 2 Question - 2.2 2.1 a. 2.2 b. 2.3 c. 3 Question - 2.3 3.1 a. 3.2 b. 3.3 c. 4 Question - 2.6 4.1 hsales 4.2 usdeaths 4.3 bricksq 4.4 sunspotarea 4.5 gasoline FAN XU 2/14/2021 library(tidyverse) library(fpp2) library(readxl) library(rio) library(gri...
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DATA624_Homework 2
Code Show All Hide All DATA 624 - HOMEWORK 2 1 Question - 3.1 1.1 usnetelec 1.2 usgdp 1.3 mcopper 1.4 enplanements 2 Question - 3.2 3 Question - 3.3 3.1 Read data from Ex 2.3 3.2 Select column A3349398A 3.3 Calculate Best Lambda 4 Question - 3.8 4.1 a. 4.2 b. 4.3 c. 4.4 d. 4.5 e. 4.6 f. FAN XU 2/21/2021 library(tidyverse) library(fpp2)...
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DATA624_Homework 3
Code Show All Hide All DATA 624 - HOMEWORK 3 1 Question - 6.2 2 Question - 6.3 FAN XU 2/28/2021 library(tidyverse) library(fpp2) library(readxl) library(rio) library(gridExtra) library(ggpubr) library(ggthemes) library(seasonal) 1 Question - 6.2 The plastics data set consists of the monthly sales (in thousands) of product A for a ...
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