ggplot2 – Scatter Plots & Jitter Plots
Scatter Plots are similar to line graphs which are usually used for plotting. The scatter plots show how much one variable is related to another. The relationship between variables is…
ggplot2 – Working with Legends
Axes and legends are collectively called as guides. They allow us to read observations from the plot and map them back with respect to original values. The legend keys and…
ggplot2 – Working with Axes
When we speak about axes in graphs, it is all about x and y axis which is represented in two dimensional manner. In this chapter, we will focus about two…
ggplot2 – Default Plot in R
In this chapter, we will focus on creating a simple plot with the help of ggplot2. We will use following steps to create the default plot in R. Inclusion of…
ggplot2 – Installation of R
R packages come with various capabilities like analyzing statistical information or getting in depth research of geospatial data or simple we can create basic reports. Packages of R can be…
ggplot2 – Tutorial
ggplot2 is an R package used for statistical computing and data representation using data visualization. It follows underlying graphics called Grammar of Graphics which includes certain rules and independent components…
DynamoDB – Best Practices
Certain practices optimize code, prevent errors, and minimize throughput cost when working with various sources and elements. The following are some of the most important and commonly used best practices…
DynamoDB – Error Handling
On unsuccessful processing of a request, DynamoDB throws an error. Each error consists of the following components: HTTP status code, exception name, and message. Error management rests on your SDK,…
DynamoDB – Table Activity
DynamoDB streams enable you to track and respond to table item changes. Employ this functionality to create an application which responds to changes by updating information across sources. Synchronize data…
DynamoDB – MapReduce
Amazon's Elastic MapReduce (EMR) allows you to quickly and efficiently process big data. EMR runs Apache Hadoop on EC2 instances, but simplifies the process. You utilize Apache Hive to query map reduce…
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