r语言绘图.doc

R语言绘图
画图例子 R Graph Cookbook例子[html] view plain copy print ? span style = font-size:18px; / span [html] view plain copy print ? span style = font-size:18px; From: / span a href = icle-1766- span style = fon 画图例子
R Graph Cookbook例子
[html] view plaincopyprint? <span style="font-size:18px;"></span>
[html] view plaincopyprint?
<span style="font-size:18px;">From:</span><a href="icle-1766-"><span style="font-size:18px;">icle-1766-</span></a>
还是直接上代码吧,我已经做好注释的了。
[python] view plaincopyprint?
1. <span style="font-size:18px;">plot(cars$dist~cars$speed,#y~x,cars是R自带的数据
2. main="Relationship between car distance & speed",#标题
3. xlab = "Speed(miles per hour)",#x轴标题
4. ylab = "Distance travelled (miles)",#Y轴标题
5. xlim = c(0,30),#设置x轴的取值区间为0到30
6. ylim = c(0,140),#设置y轴的取值区间为0到140
7. xaxs = "i",#这里是设置x轴的风格,暂时没看明白有多大区别
8. yaxs = "i",
9. col = "red",#设置颜色
= 19)#pch指代点的形状,用数字表示,可查看帮助文档
11.#如果要保存图片怎么办呢?我觉得最简单的方法就是使用RStudio这个IDE,极其得好,可惜很多人都不知道。#如果你不会,可以用如下代码实现:#(图形的参数还有很多个,我这里只使用了其中的几个)
(filename="",width=480,height=480)
(cars$dist~cars$speed,#y~x
="Relationship between car distance & speed",#标题
= "Speed(miles per hour)",#x轴标题
= "Distance travelled (miles)",#Y轴标题
= c(0,30),#设置x轴的取值区间为0到30
= c(0,140),#设置y轴的取值区间为0到140
= "i",#这里是设置x轴的风格,暂时没看明白有多大区别
= "i",
= "red",
= 19)#pch指代点的形状,用数字表示,可查看帮助文档
()
24.</span>
如果你还有另一组数据,需要在上面这幅图里绘制,也就是在同一幅图里面绘制两组数据的散点图,可以像下面这样用point函数:
[plain] view plaincopyprint?
1. <span style="font-size:18px;">png(filename="散点
",width=480,height=480)
2. plot(cars$dist~cars$speed,#y~x
3. main="Relationship between car distance & speed",#标题
4. xlab = "Speed(miles per hour)",#x轴标题
5. ylab = "Distance travelled (miles)",#Y轴标题
6. xlim = c(0,30),#设置x轴的取值区间为0到30
7. ylim = c(0,140),#设置y轴的取值区间为0到1