print.axes.val. This is the first post of a series that will look at how to create graphics in R using the plot function from the base package. The title of the legend. Default prints each axis if rownames or colnames is not NULL. In addition, if cex = 1 (the default), each side is at least one pixel (1/72 inch on the pdf, … We start by plotting a first single line with a solid line type (lty = 1). The legend plot is used to show statistical data in graphical form. The graph on the right communicates more information, subsetting the data by species using color. legend.title. Hence, Q1: How can I enlarge the text in the legend box? As you can see, the size of the legend box is too big. However, shrinking the boxes makes it hard to read the texts. Syntax: legend(x, y, legend, fill, col, bg, lty, cex, title, text.font, bg) Parameters: x and y: These are co-ordinates to be used to position the legend legend: Text of the legend Finally, we add a legend on the plot using the R base function legend(), which take the same col and lty arguments as the lines function. 関数legendで凡例を追加することができ、legend() 関数はグラフィックス中の線や点記号の解説を小さなボックス中に表示します。 Size of the characters in axes. Should the axes values be printed. グラフィックス参考実例集：凡例 legend (グラフィックス参考実例集に戻る。Rのグラフィックスパラメータを参照する。. print.x.axis.val.

R> plot(1:10, cex.axis=0.5) ... R> plot(1:10, las=2) #軸に対して垂直方向（x軸が変化） 関連記事. If you use a keyword, you may want to use inset= to specify an amount to move the legend into the graph (as fraction of plot region). Contribute to YinLiLin/CMplot development by creating an account on GitHub. Value pch="." is handled specially. In this post we will see how to add information in basic scatterplots, how to draw a legend and finally how to add regression lines. Size of the text in the legend. Note that I always specified the cex arguments to be equal to 3. Figure 6: Base R Plot with Increased Font Size of All Text Elements. Default makes the cex so small that all categories can be printed. title: A character string for the legend title (optional) legend: A character vector with the labels ... Other options. The larger the cex value gets, the larger is the font size. It is a rectangle of side 0.01 inch (scaled by cex). The graph on the left is the most basic graph you can create in R: a scatter plot with an x and y variable. A legend is defined as an area of the graph plot describing each of the parts of the plot. You may change this value to whatever value you want. Circular and Rectangular Manhattan Plot. cex.axes. Create a plot with multiple lines and set the legend lty. Video & Further Resources Next, we add a second line with a dashed line style (lty = 2). cex.legend. I used cex=0.5 to shrink the legend boxes in the first two sub-graphs. Above, I used base R plotting to graph petal width vs. petal length. There are of course other packages to make cool graphs in R (like ggplot2 or lattice), but so far plot always gave me satisfaction.. Other common options are cex, col, and font (for size, color, and font style respectively). If pch is an integer or character NA or an empty character string, the point is omitted from the plot. You may also decrease the font size.