I'm trying to create a scatter plot in ggplot2 that has the usual numerical axis labels, but some helper text below it that explains what it means to be more left or right on the figure. The rub is that I want to include both an arrow and a linebreak and I can'...
vjust can take a vector of inputs equal to the size of the x - axis as well. The order of the vjust(where I put the 0) is based on the order of the dataset not the display shown in ggplot. You can factor blood_type to be very specific about where you would ...
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...
Usingggplot2, 2 main functions are available for that kind of annotation: geom_textto add a simple piece of text geom_labelto add a label: framed text Note that theannotate()function is a good alternative that can reduces the code length for simple cases. # librarylibrary(ggplot2)# basic...
This tutorial demonstrates how to create a ggplot2 visualization with a transparent background and export it to a .png file using the ggsave() function. Create a Visualization With a Transparent Background To create a ggplot2 visualization with a transparent background, we need to set the value...
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...
scale_color_manual(values = c("blue", "orange"), guide = NULL) ggnewscale_example There is no doubt that this solution is not very common and formal. And I really hope it can be merged intoggplot2big family so that I only need to import one package. Ah!
Below is one attempt to create a function calledmybarplotwith the customizations I want, without using the rlang package. However, it won’t work. mybarplot <- function(mydf, myxcol, myycol, mytitle) { ggplot(data = mydf, aes(x=reorder(myxcol, myycol), y=myycol)) + ...
I consider ggplot2 to be nothing short of a revolution in R graphics. I simply haven't found anything like this package for quickly and elegantly producing usable graphics. I covered the quick and dirty basics of ggplot2 in a previous post. Now I...
How can I draw contours on top of the map (preferably using ggplot2) for my data? Bonus questions: How do I transform my data back to a regular grid on the Lambert conformal projection? The parameters of the projection according to the data file include (mpLambertPa...