535 search results for "boxplot"

Delaware River Water Quality Visualization App

January 10, 2017
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Delaware River Water Quality Visualization App

The Delaware River Basin Commission (DRBC) just released a new app for visualizing water quality in the Delaware River Basin.  The DRBC Special Protection Waters Monitoring Program Explorer is a Shiny app that allows users to generate a boxplot and summary table of selected water quality data. The boxplot and summary table are updated each time the user selects...

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Getting Started With R: A Beginner’s Guide, Part 1

January 9, 2017
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Getting Started With R: A Beginner’s Guide, Part 1

Why learn R? There are a lot of tools available for doing data analytics, data science, or statistical analysis. So why should you choose R? I’ll answer that by contrasting R to some of my other favorite tools. If you

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How to map your Google location history with R

December 29, 2016
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How to map your Google location history with R

It’s no secret that Google Big Brothers most of us. But at least they allow us to access quite a lot of the data they have collected on us. Among this is the Google location history. If you want to see a few ways how to quickly and easily visualize ...

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7 Visualizations You Should Learn in R

December 29, 2016
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7 Visualizations You Should Learn in R

7 Visualizations You Should Learn in R With ever increasing volume of data, it is impossible to tell stories without visualizations. Data visualization is an art of how to turn numbers into useful knowledge. R Programming lets you learn this art by offering a set of inbuilt functions and libraries to build visualizations and present... Read MoreThe...

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Exploratory Data Analysis Using R (Part-I)

December 28, 2016
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Exploratory Data Analysis Using R (Part-I)

The greatest value of a picture is when it forces us to notice what we never expected to see. — John W. Tukey. Exploratory Data Analysis.Why do we use exploratory graphs in data analysis?Understand data propertiesFind patterns in dataSuggest mod...

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An Overview of Room Rentals in Sydney | RSelenium, rvest, Leaflet, googleway

December 27, 2016
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An Overview of Room Rentals in Sydney | RSelenium, rvest, Leaflet, googleway

Started another data scraping script similar to the post about rental rates in Houston; except this time i picked Sydney, Australia. The site that i’ve selected uses an awful lot of javascript, so the rvest package won’t be enough in … Continue reading →

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The Wordcloud2 library

December 9, 2016
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The Wordcloud2 library

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Outlier detection and treatment with R

December 9, 2016
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Outlier detection and treatment with R

Outliers in data can distort predictions and affect the accuracy, if you don’t detect and handle them appropriately especially in regression models. Why outliers treatment is important? Because, it can drastically bias/change the fit estimates and predictions. Let me illustrate this using the cars dataset. To better understand the implications of outliers better, I am Related Post

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Descriptive Analytics-Part 5: Data Visualisation (Continuous variables)

December 4, 2016
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Descriptive Analytics-Part 5: Data Visualisation  (Continuous variables)

Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0, part 1, part 2,part 3, and part 4 of this series but also you should run this script which

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Forecast double seasonal time series with multiple linear regression in R

December 2, 2016
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Forecast double seasonal time series with multiple linear regression in R

I will continue in describing forecast methods, which are suitable to seasonal (or multi-seasonal) time series. In the previous post smart meter data of electricity consumption were introduced and a forecast method using similar day approach was proposed. ARIMA and exponential smoothing (common methods of time series analysis) were used as forecast methods. The biggest disadvantage of this...

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