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rplotlyfrequency

Set X Axis Range on Plotly Frequency Graph

Consider the following graph:

library(dplyr)
library(plotly)

x <- c(1, 1, 2, 2, 3, 3, 4, 4, 4, 4, 4, 5, 6, 8, 8, 8, 10, 10)
y <- as.data.frame(table(x))

y %>%
plot_ly(x = ~ x,
        y = ~ Freq,
        type = 'bar')

Frequency Graph

I would like to take this graph and produce a similar graph in which the values 7 and 9 are listed with a frequency of zero. Is there a way to get a frequency count of a sequence like seq(0, 10, 1) where 7 and 9 would appear as a frequency of 0 or is there a way that I can set the x axis on my plotly graph to be from 0 to 10 even though I don't have all the numbers in my data?

I have tried

y %>%
plot_ly(x = ~ x,
        y = ~ Freq,
        type = 'bar') %>%
layout(xaxis = list(autotick = FALSE, tick0 = 0, tickd = seq(0, 10, 1))

and also

layout(xaxis = list(autotick = FALSE, tick0 = 0, tickd = c(0,10))

but neither one seems to change anything.

I would like my desired output to look like this:

Desired Output

Note that This is just a small sample and my actual data will be much larger. Because of this, something like looping through the data and counting every number would be too slow.

Solution

  • A simple solution is to convert x as a factor with levels from 1 to 10.

    library(dplyr)
library(plotly)

x <- c(1, 1, 2, 2, 3, 3, 4, 4, 4, 4, 4, 5, 6, 8, 8, 8, 10, 10)
x <- factor(x, levels=1:10)

y <- as.data.frame(table(x))

y %>%
plot_ly(x = ~ x,
        y = ~ Freq,
        type = 'bar')