[英]Manipulating R plotly legend
Probably an easy question: 可能是一个简单的问题:
Trying to use plotly
to produce a scatter plot and customize the legend. 尝试使用
plotly
生成散点图并自定义图例。
Here's my data: 这是我的数据:
require(plotly)
set.seed(1)
my.df <- data.frame(id=LETTERS[sample(26,100,replace=T)],x=rnorm(100),y=rnorm(100),sig=runif(100,0,1),stringsAsFactors = F)
In my case I'm calling this with the column indices, thus: 在我的情况下,我用列索引调用它,因此:
x.idx <- which(colnames(my.df) == "x")
y.idx <- which(colnames(my.df) == "y")
sig.idx <- which(colnames(my.df) == "sig")
sig.name <- "p-value"
And what I want to do is have the legend title be sig.name
and make the legend smaller than the default size. 我想要做的是将图例标题设为
sig.name
并使图例小于默认大小。 So I'm trying: 所以我在尝试:
p <- plot_ly(x=~my.df[,x.idx],y=~my.df[,y.idx],color=~my.df[,sig.idx],text=~my.df$id,colors=c("darkblue","darkred")) %>% add_annotations(text=sig.name,xref="paper",yref="paper",xanchor="left",x=1,y=1,yanchor="top",legendtitle=T,showarrow=FALSE) %>% layout(legend=list(y=0.8,yanchor="top"),xaxis=list(title=colnames(my.df)[x.idx],zeroline=F),yaxis=list(title=colnames(my.df)[y.idx],zeroline=F))
Not exactly what I want. 不完全是我想要的。
So: 所以:
How do I delete the default legend title? 如何删除默认图例标题?
How do I make the legend smaller? 如何使图例变小?
You are probably looking for colorbar: len
and colorbar: title
. 您可能正在寻找
colorbar: len
和colorbar: title
。
plot_ly(type = 'scatter',
mode = 'markers',
x = ~my.df[,x.idx],
y = ~my.df[,y.idx],
color = ~my.df[,sig.idx],
text =~my.df$id,
colors = c("darkblue","darkred"),
marker = list(colorbar = list(len = 0.2,
title = sig.name)
)
)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.