如何在情节中更改轴特征? [英] How to change axis features in plotly?

问题描述

I have the following bar in plotly and I want to :

1. get the x-axis title away from the axis label so they dont overlap
2. make the Y-axis labels bigger
3. bring the bar values to the top of bars

My code is :

library(plotly)
plot_ly(x = c('100-200','200-400', '400-600','600-800','800- 1000'),
y = c(12261,29637,17469,11233,17043),          
name = "dd",
type = "bar", 
 xaxis = list(title ="tr"),
yaxis = list(title = "cc") ,                                                
 text = c(12261,29637,17469,11233,17043),textposition = 'auto') %>%
layout(
xaxis = list(tickangle=15, title = " "),
 yaxis = list(title = " "))

Thanks for your comments :)

解决方案

Question 1: get the x-axis title away from the axis label so they dont overlap
This problem can be solved setting proper margins with margin = list(b=100, l=100) in layout.

Question 2: make the Y-axis labels bigger.
Use xaxis = list(titlefont=list(size=30)) in layout

Question 3: bring the bar values to the top of bars.
Use add_text with textposition = 'top'

library(plotly)

x <- c('100-200','200-400', '400-600','600-800','800-1000')
y <- c(12261,29637,17469,11233,17043)
labs <- c(12261,29637,17469,11233,17043)

plot_ly(x = x, y = y,          
 name = "dd",
 type = "bar", 
 xaxis = list(title ="tr"),
 yaxis = list(title = "cc")) %>%
add_text(x=x, y=y, text=labs, hoverinfo='none', textposition = 'top', showlegend = FALSE, 
        textfont=list(size=20, color="black")) %>%
layout(margin = list(b=100, l=100),
 xaxis = list(tickangle=15, title = "Lenght of exon", titlefont=list(size=30)),
 yaxis = list(title = "Number of genes", titlefont=list(size=30)))

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