Data is a critical component of SEO content strategy. Basing your writing on reliable data shows a commitment to accuracy, building your authority and credibility in readers’ eyes. This approach to ...

In a data-driven world, the ability to analyze and interpret information is critical. Harvard University’s Professional Certificate in Data Science provides a structured, comprehensive program for ...

Prerequisite: Introduction to Data Visualization in R or moderate experience using R. Learn how to create advanced visualizations in R with the ggplot2 package. We will learn the Grammar of Graphics, ...

Create R data visualizations easily with a few lines of simple code using the ggcharts R package. Plus, the resulting charts and graphs are customizable ggplot objects. ggplot2 is an enormously ...

The table below shows my favorite go-to R packages for data import, wrangling, visualization and analysis — plus a few miscellaneous tasks tossed in. The package ...

The ggplot2 data visualization R package is extremely powerful and flexible. However, it’s not always easy to remember how to do every task – especially if you’re not a frequent user. How do you ...

In one case, I generate a ggplot from the global environment. In the second case, I generate the same ggplot but from within my custom plot function. I then save both these plots to disk and compare ...

通常我们绘图时，ggplot默认的颜色是黑色（图1、图3），其实我们可以通过color参数设置想要的颜色，例如color=”red”（图2）： color参数通常用于散点图、折线图等。但是当我们的图为柱状图或者空心的散点图点时（如图3、图4），用color参数就只能设置边框的 ...

采用图层的设计方式，有利于结构化思维 将表征数据和图形细节分开，能快速将图形表现出来，使创造性绘图更加容易，而不必纠结于图形的细节，细节可以后期慢慢调整 将常见的统计变换融入到了绘图中 有明确的起始(ggplot开始)与终止(一句话一个图层)，图层 ...