Plotly R:当每个 x 因子水平存在两个值时，无法绘制点

问题描述

I have a data frame like this:

dput(df)
structure(list(x = structure(c(1L, 2L, 3L, 4L, 5L, 1L, 2L, 3L, 
4L, 5L), .Label = c("41197708", "41223094", "41244000", "41244435", 
"41244936"), class = "factor"), y = c(1, 1, 1, 1, 1, 2, 2, 2, 
2, 2)), .Names = c("x", "y"), row.names = c(NA, -10L), class = "data.frame")

Trying to print a scatter plot with points as follows:

plot_ly(df, x = levels(x), y = y, mode = 'markers')

I only see points corresponding to y = 1 and not y = 2. Any idea why?

The following works in plotly, but then it treats x axis values as numeric / continuous (not what I want):

plot_ly(df, x = x, y = y, mode = 'markers')

解决方案

Isn't this a duplicate of your previous question and related to this github issue ?

If you do:

plot_ly(df, x = x, y = y, mode = "markers") %>% 
      layout(xaxis = list(type = "category"))

You'll get:

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