Publications by Michael Y.
DATA624-HW6-ARIMA
library(fpp2) ## Loading required package: ggplot2 ## Loading required package: forecast ## Registered S3 method overwritten by 'quantmod': ## method from ## as.zoo.data.frame zoo ## Loading required package: fma ## Loading required package: expsmooth library(tseries) library(urca) Homework 6 - ARIMA Do the exercises 8.1, 8.2, ...
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DATA622_HW1
DATA 622 - HW1 Q1: Naive Bayes df1 <- read.csv('HW1-Q1-40.csv', skip = 1, header = T, nrows = 14, stringsAsFactors = T) %>% rename(agegroup = 'age.group', credit = 'credit_rating', prospect = "class.prospect") df1 %>% kable(caption = "Prospect Data") %>% kable_styling(c("bordered","striped"),...
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DATA624-HW5-ExpoSmoothing
library(fable) ## Loading required package: fabletools library(forecast) ## Registered S3 method overwritten by 'quantmod': ## method from ## as.zoo.data.frame zoo ## ## Attaching package: 'forecast' ## The following objects are masked from 'package:fabletools': ## ## GeomForecast, StatForecast library(fpp2) ## Loading r...
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ExponentialSmoothing
Exponential Smoothing Simon U., Michael Y., Ben H., Sachid Deshmukh March 3, 2020 Introduction What is exponential smoothing? Forecasting future observations using weighted averages of past observations, with the weights decaying exponentially as observations recede further into the past Presumably, more recent data points are more predict...
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DATA624-HW4-Preprocessing
library(fpp2) ## Loading required package: ggplot2 ## Loading required package: forecast ## Registered S3 method overwritten by 'xts': ## method from ## as.zoo.xts zoo ## Registered S3 method overwritten by 'quantmod': ## method from ## as.zoo.data.frame zoo ## Registered S3 methods overwritten by 'forecast': ## meth...
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DATA624-HW3-Decomposition
library(fpp2) ## Loading required package: ggplot2 ## Loading required package: forecast ## Registered S3 method overwritten by 'xts': ## method from ## as.zoo.xts zoo ## Registered S3 method overwritten by 'quantmod': ## method from ## as.zoo.data.frame zoo ## Registered S3 methods overwritten by 'forecast': ## meth...
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DATA612-RD1-VRBO
Research Discussion Assignment 1 Please complete the research discussion assignment in a Jupyter or R Markdown notebook. You should post the GitHub link to your research in a new discussion thread. Now that we have covered basic techniques for recommender systems, choose one commercial recommender and describe how you think it works (content-base...
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DATA612-Project1-Baseline-RMSE
library(tidyverse) ## -- Attaching packages ----------------------------------------------------------------------------------------------- tidyverse 1.3.0 -- ## <U+2713> ggplot2 3.2.1 <U+2713> purrr 0.3.3 ## <U+2713> tibble 2.1.3 <U+2713> dplyr 0.8.3 ## <U+2713> tidyr 1.0.0 <U+2713> stringr 1.4.0 ## <U+2713> readr 1.3.1 ...
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DATA624-HW02-Forecasting
library(fpp2) ## Loading required package: ggplot2 ## Loading required package: forecast ## Registered S3 method overwritten by 'xts': ## method from ## as.zoo.xts zoo ## Registered S3 method overwritten by 'quantmod': ## method from ## as.zoo.data.frame zoo ## Registered S3 methods overwritten by 'forecast': ## meth...
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DATA608-Module1-inc5000
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: path <- "https://raw.githubusercontent.com/charleyferrari/CUNY_DATA_608/master/module1/Data/inc5000_data.csv" inc <- read.csv(path,header= TRUE) Let�...
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