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Earthquake Analysis (4/4): Cluster Analysis

May 18, 2019
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Earthquake Analysis (4/4): Cluster Analysis

Are you interested in guest posting? Publish at DataScience+ directly from your editor (i.e., RStudio). Category Basic Statistics Tags Data Visualisation Maps R Programming This is the fourth part of our post series about the exploratory analysis of a publicly available dataset reporting earthquakes and similar events within a specific 30 days time span. In this post, we are going to show a cluster analysis of...

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Earthquake Analysis (3/4): Visualizing Data on Maps

May 12, 2019
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Earthquake Analysis (3/4): Visualizing Data on Maps

Interested in guest posting? We would love to share your codes and ideas with our community. Categories Basic Statistics Tags Data Visualisation ggplot2 Maps R Programming Tips & Tricks This is the third part of our post series about the exploratory analysis of a publicly available dataset reporting earthquakes and similar events within a specific 30 days time span. In this post, we are going to show static,...

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Earthquake Analysis (2/4): Categorical Variables Exploratory Analysis

May 1, 2019
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Earthquake Analysis (2/4): Categorical Variables Exploratory Analysis

CategoriesBasic Statistics Tags Data Visualisation Exploratory Analysis R Programming This is the second part of our post series about the exploratory analysis of a publicly available dataset reporting earthquakes and similar events within a specific time window of 30 days. In the following, we are going to analyze the categorical variables of our dataset. The categorical variables can take on one of a limited,...

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Earthquake Analysis (1/4): Quantitative Variables Exploratory Analysis

April 27, 2019
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Earthquake Analysis (1/4): Quantitative Variables Exploratory Analysis

CategoriesBasic Statistics Tags Data Management Data Visualisation Exploratory Analysis Import Data R Programming In this post series, we are going to introduce the exploratory analysis of a dataset as available at ref. reporting earthquakes and similar events occurring within a specific time window. We will run a basic exploratory analysis, showing some of the main principles and tools on that matter. Then, we will show...

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Dow Jones Stock Market Index (4/4): Trade Volume GARCH Model

January 8, 2019
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Dow Jones Stock Market Index (4/4): Trade Volume GARCH Model

CategoriesAdvanced Modeling Tags Data Visualisation Linear Regression R Programming This is the final part of the 4-series posts. In this fourth post, I am going to build an ARMA-GARCH model for Dow Jones Industrial Average (DJIA) daily trade volume log ratio. You can read the other three parts in the following links: part 1, part2, and part 3. Packages The packages being used in...

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Dow Jones Stock Market Index (3/4): Log Returns GARCH Model

January 7, 2019
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Dow Jones Stock Market Index (3/4): Log Returns GARCH Model

CategoriesAdvanced Modeling Tags Data Visualisation Linear Regression R Programming In this third post, I am going to build an ARMA-GARCH model for Dow Jones Industrial Average (DJIA) daily log-returns. You can read the first and second part which I published previously. Packages The packages being used in this post series are herein listed. suppressPackageStartupMessages(library(lubridate)) suppressPackageStartupMessages(library(fBasics)) suppressPackageStartupMessages(library(lmtest)) suppressPackageStartupMessages(library(urca)) suppressPackageStartupMessages(library(ggplot2)) suppressPackageStartupMessages(library(quantmod)) suppressPackageStartupMessages(library(PerformanceAnalytics)) suppressPackageStartupMessages(library(rugarch)) suppressPackageStartupMessages(library(FinTS)) suppressPackageStartupMessages(library(forecast)) suppressPackageStartupMessages(library(strucchange))...

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Dow Jones Stock Market Index (2/4): Trade Volume Exploratory Analysis

January 6, 2019
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Dow Jones Stock Market Index (2/4): Trade Volume Exploratory Analysis

CategoriesBasic Statistics Tags Data Visualisation Import Data R Programming This is the second part of the 4-series articles about Dow Jones Stock Market. To read the first part go to this link. In this part, I am going to analyze the Dow Jones Industrial Average (DJIA) trade volume. Packages The packages being used in this post series are herein listed. suppressPackageStartupMessages(library(lubridate)) suppressPackageStartupMessages(library(fBasics)) suppressPackageStartupMessages(library(lmtest)) suppressPackageStartupMessages(library(urca))...

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Dow Jones Stock Market Index (1/4): Log Returns Exploratory Analysis

January 5, 2019
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Dow Jones Stock Market Index (1/4): Log Returns Exploratory Analysis

CategoriesBasic Statistics Tags Data Visualisation Import Data R Programming In this four-post series, I am going to analyze the Dow Jones Industrial Average (DJIA) index on years 2007-2018. The Dow Jones Industrial Average (DIJA) is a stock market index that indicates the value of thirty large, publicly owned companies based in the United States. The value of the DJIA is based upon the sum...

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Leaf Plant Classification: Statistical Learning Model – Part 2

December 30, 2018
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Leaf Plant Classification: Statistical Learning Model – Part 2

CategoriesAdvanced Modeling Tags Linear Regression Principal Component Analysis R Programming In this post, I am going to build a statistical learning model as based upon plant leaf datasets introduced in part one of this tutorial. We have available three datasets, each one providing sixteen samples each of one-hundred plant species. The features are: shape texture margin Specifically, I will take advantage of Discrimination Analysis...

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Leaf Plant Classification: An Exploratory Analysis – Part 1

December 29, 2018
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Leaf Plant Classification: An Exploratory Analysis – Part 1

CategoriesGetting Data Tags Data Management Data Visualisation Exploratory Analysis R Programming In this post, I am going to run an exploratory analysis of the plant leaf dataset as made available by UCI Machine Learning repository at this link. The dataset is expected to comprise sixteen samples each of one-hundred plant species. Its analysis was introduced within ref. . That paper describes a method designed to...

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