R:如何传播(抖动)点相对于X轴? [英] R: How to spread (jitter) points with respect to the x axis?
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问题描述
dat< - data.frame(cond = factor(rep( A,10)),
rating = c(1,2,3,4,6,6,7,8,9,10))
ggplot(dat,aes(x = cond ,y = rating))+
geom_boxplot()+
guides(fill = FALSE)+
geom_point(aes(y = 3))+
geom_point(aes(y = 3))+
geom_point(aes(y = 5))
代码会生成一个boxplot,其中一个点超过另一个点(在上述情况下,一个点3会超过另一个点3)。
如何移动点3以便点在y轴的相同位置上保持不变,但它在x轴上向左或向右稍微移动?
解决方案
可以通过使用 position_jitter
函数来实现:
geom_point(aes( y = 3),position = position_jitter(w = 0.1,h = 0))
更新:
仅绘制三个供给您可以创建一个新的数据集并绘制:
points_dat< - data.frame(cond = factor(rep A,3)),rating = c(3,3,5))
ggplot(dat,aes(x = cond,y = rating))+
geom_boxplot()+
b guides(fill = FALSE)+
geom_point(aes(x = cond,y = rating),data = points_dat,position = position_jitter(w = 0.05,h = 0))
I have the following code snippet in R:
dat <- data.frame(cond = factor(rep("A",10)),
rating = c(1,2,3,4,6,6,7,8,9,10))
ggplot(dat, aes(x=cond, y=rating)) +
geom_boxplot() +
guides(fill=FALSE) +
geom_point(aes(y=3)) +
geom_point(aes(y=3)) +
geom_point(aes(y=5))
This particular snippet of code produces a boxplot where one point goes over another (in the above case one point 3 goes over another point 3).
How can I move the point 3 so that the point remains in the same position on the y axis, but it is slightly moved left or right on the x axis?
解决方案
This can be achieved by using the position_jitter
function:
geom_point(aes(y=3), position = position_jitter(w = 0.1, h = 0))
Update: To only plot the three supplied points you can construct a new dataset and plot that:
points_dat <- data.frame(cond = factor(rep("A", 3)), rating = c(3, 3, 5))
ggplot(dat, aes(x=cond, y=rating)) +
geom_boxplot() +
guides(fill=FALSE) +
geom_point(aes(x=cond, y=rating), data = points_dat, position = position_jitter(w = 0.05, h = 0))
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