Publications by LV Kinyanjui
Data Science Capstone
This is a comprehensive project that covers all the areas of the data science specialization offered by john hopkins university. It involves working with NLP and building a predictive model that can be deployed to a useful data application. This is not an easy task and all the steps will be outlined clearly as we proceed. library(tidyverse) -- ...
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Data Explorer App
Data Explorer Shiny App LV Kinyanjui 2023-02-11 Intent and Intro Here I will present the idea for a shiny app that is meant to make the process of data analysis more beginner friendly. It gives us a graphical user interface to interact with and make quick changes to allow us to explore out datasets. This is by no means a comprehensive projec...
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Sentiment Analysis
Abstract This document is meant to do sentiment analysis on review that have been webscraped from Amazon’s site. We shall be using the package syuzhet. Its lower level functions are hidden and we shall only consider the functions it provides to do our analysis. Dependencies library(syuzhet) library(tidyverse) ## -- Attaching packages -----...
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Simulation and Hypothesis Testing
Abstract In this project we shall investigate the exponential distribution in R and compare it with the Central Limit Theorem. Next, we shall perform hypothesis testing on data. library(datasets) library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following...
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Macro-economic Indicators
Introduction This will be an investigation in the various indicators that are kept by the Central Bank to monitor the economy. These include inflation, balance of payments, gdp and others. This way, what is sought is a solid understanding of how policy makers view the economy from high up in their ivory tower. Note on Reproducibility It was ...
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Motor Trends
Executive summary You work for Motor Trend, a magazine about the automobile industry. Looking at a data set of a collection of cars, they are interested in exploring the relationship between a set of variables and miles per gallon (MPG) (outcome). They are particularly interested in the following two questions: “Is an automatic or manual tr...
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