R ggplot2 geom_jitter: plotting all zeros

Question

In R ggplot2, when I plot all zeros and use geom_jitter(), some variations are automatically added to zeros. How can I undo that? I still want all points at 0 y axis.

y = rep(0,100)

x = rep(c("A","B","C","D"),25)

D = data.frame(x,y)

library(ggplot2)

ggplot(D,aes(x=x,y=y))+geom_boxplot() + geom_jitter()

Umm...don't use `+ geom_jitter()`? Just use, `ggplot(D,aes(x=x,y=y))+geom_boxplot()` — JasonAizkalns, Jun 03 '16 at 01:07
@JasonAizkalns But I do need it to spread the dots horizontally... — John, Jun 03 '16 at 01:13
then use `geom_jitter(height = 0)` - this forces the vertical variation/jitter to zero, but still allows the points to jitter horizontally. — JasonAizkalns, Jun 03 '16 at 01:14

score 2 · Accepted Answer · answered Jun 03 '16 at 13:50

2

If you need to keep the dots and spread them horizontally, you can use geom_jitter(height = 0). This will force the vertical variation/jitter to zero, but still allows the points to "jitter" horizontally.

ggplot(D, aes(x = x, y = y)) +
    geom_boxplot() +
    geom_jitter(height = 0)

answered Jun 03 '16 at 13:50

JasonAizkalns

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The editors of ggplot could make geom_jitter so that the dots distribute evenly, instead of randomly. Despite my jitter, I still have points that overlap... – Mehdi.K Feb 13 '18 at 13:03

R ggplot2 geom_jitter: plotting all zeros

1 Answers1