Publications by J.Falck, A.Haque, M.Matanos. E.Rodrigues
DATA 621 - HW5 Zero Inflated Poisson
DATA621 - HW5 DATA621 - HW5 Overview Load Libraries Load data Exploratory Data Analysis (EDA) Basic Checks Some visualizations Data engineering and transformations Modelling Models 1a,1b - multiple regression Model 2a,2b - Poisson Regression Models 3a, 3b - Negative Binomial Model 4 - Hurdle ...
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DATA 621 - HW5
DATA621 - HW5 DATA621 - HW5 Overview Load Libraries Load data Exploratory Data Analysis (EDA) Basic Checks Some visualizations Data engineering and transformations Modelling Models 1a,1b - multiple regression Model 2a,2b - Poisson Regression Models 3a, 3b - Negative Binomial Model 4 - Hurdle ...
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Data 621 - HW1
Data621 - HW 1 Data621 - HW 1 Load Libraries Load Data Review Data Feature engineering and Data cleaning Modelling Analysis of Results Juan Falck 2023-04-29 Load Libraries #setwd("Code/HW_1") library(tidyverse) ## ── Attaching packages ───────────────────────────...
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Data_608_Module_1
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("https://raw.githubusercontent.com/charleyferrari/CUNY_DATA_608/master/module1/Data/inc5000_data.csv", header= TRUE) And lets preview t...
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Data605_Final_Assignment
Data605 - Final Assignment Data605 - Final Assignment 0. Load libraries and initialize things 1. Playing with PageRank 1.1 - Form the A matrix. Then, introduce decay and form the B matrix as we did in the course notes. 1.2 Start with a uniform rank vector r and perform power iterations on B until convergence....
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Data 605 Homework 4
Data 605 - Assignment 4 Data 605 - Assignment 4 Load libraries we will need Read and Plot the first image (.jpg) Read in all image files Read to a list all filenames in folder Function to Plot 1d Image Files Read all images into a single matrix Process matrix with SVD (Singular Value Decomposition) A...
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Data605 - HW11
Data605 - HW11 Regression Data605 - HW11 Regression Assignment Initial Setup Load data Visualize data Linear Regression Fit the regression Review regression fitting results Residual Analysis Juan Falck 2022-10-26 Assignment Using the “cars” dataset in R, build a linear model for stopping distance as...
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Data_605_HW-12
HW 12 - Linear Regression HW 12 - Linear Regression Life Expectancy Dataset EDA of Dataset 1- Provide a scatterplot of LifeExp~TotExp, and run simple linear regression. Do not transform the variables. Provide and interpret the F statistics, R^2, standard error,and p-values only. Discuss whether the assumptions...
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Data_605_Discussion_Calculus
Calculus - Exercices 4.2 - Number 12 Calculus - Exercices 4.2 - Number 12 Part 1 - Theoretical answer 1. Setup the problem and most important equations Part 2 - Simulation Juan Falck 2022-11-05 Part 1 - Theoretical answer 1. Setup the problem and most important equations To get started let’s graph the setup and state the...
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Data605 Assignment 3
Juan Falck - Assignment 3 Juan Falck - Assignment 3 Problem Set 1 Question 1 Question 2 Question 3 Problem Set 2 2022-12-09 Problem Set 1 Question 1 What is the rank of the matrix A? \(A = \begin{bmatrix}1&2&3&4 \\ -1 & 0 & 1 & 3\\ 0 & 1 & -2 & 1\\ 5 & 4 & -2 & -3 \end{bmatrix}\) Solution To get the rank we will do row red...
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