Add title, subtitle and caption # Default plotlibrary(ggplot2) p <- ggplot(ToothGrowth, aes(x = factor(dose), y = len)) + geom_boxplot() print(p)# Add titlesp <- p + labs(title ="Effect of Vitamin C on Tooth Gr
ggplot2是R中新颖的数据可视化包,这得益于Leland Wilkinson在他的著作《The Grammar of Graphics》中提出了一套图形语法,把图形元素抽象成可以自由组合的成分,Hadley Wickham把这套想法在R中实现。 1. How to use qplot 函数qplot()是ggplot2中十分常用的函数,使用它可以绘制丰富多彩的图形,并且通常只需要一行代码可...
在上面的例子中,各种属性映射由ggplot函数执行,只需要加一个图层,使用geom_point()告诉ggplot要画散点,于是所有的属性都映射到散点上。 geom_point()完成的就是几何对象的映射,ggplot2提供了各种几何对象映射,如geom_histogram用于直方图,geom_bar用于画柱状图,geom_boxplot用于画箱式图等等。 不同的几何对象,要求的...
The goal of this article is to describe how to change the color of a graph generated using R software and ggplot2 package. A color can be specified either by name (e.g.: “red”) or by hexadecimal code (e.g. : “#FF1234”). The different color systems available in R are describe...
This article illustrates how todeal with the ggplot2 error “Don’t know how to automatically pick scale for object type”inR. The tutorial contains this information: 1)Example Data & Add-On Packages 2)Example 1: Reproduce the ggplot2 Error – automatically pick scale for object of type stan...
In this article, you will learn how to modify ggplot labels, including main title, subtitle, axis labels, caption, legend titles and tag.
How to Make a Histogram with ggplot2 Now we can create the histogram. Regardless of the type of graph we are creating in ggplot2, we always start with the ggplot() function, which creates a canvas to add plot elements to. It takes two parameters. The first argument is a data frame....
In the next step, we actually draw a bar chart with a backgriund image. To make blackboard.jpg the background image, we need to combine the annotation_custom-function of the ggplot2 package and the rasterGrob-function of the grid package. ggplot(mydata, aes(cut, price, fill = -price...
library("ggeffects")library("ggplot2")plot(p5, ci.style="errorbar",add.data=FALSE, dodge=1)# +# xlab("")+ ylab("Predicted Probability of Hit") + ggtitle ("Effect of Listening Time") +# theme(plot.title = element_text(hjust = 0.5), text=element_text(family="Calibri", size=12,...
How to Label Outliers in Boxplots in ggplot2, This article offers a detailed illustration of how to name outliers in ggplot2 boxplots. Step 1: Construct the data frame. Create the following data frame first, which will include details on the 60 distinct basketball players who played for th...