R Plotly 添加图像水印

如何解决R Plotly 添加图像水印

我想将图像/水印添加到双 y 轴图中，不知何故我的代码不起作用......这怎么可能？它没有错误，但没有添加图像

df <- data.frame(x = 1:50,y1 = c(20:5,6:10,9:3,4:20,19:15),y2 = c(100:115,200:204,50:44,66:62))

还有我的代码

plot_ly(df) %>% 
  add_lines(type = 'scatter',mode = "lines",name = "test",x = ~x,y = ~y1,line = list(color = '#999999'),hoverinfo = "text",text = ~paste(round(y1,1),x))  %>%
  add_lines(type = 'scatter',yaxis = 'y2',y = ~y2,line = list(color = '#CC79A7'),text = ~paste(round(y2,x)) %>%
  #layout
  layout(title = "test",xaxis = list(titel = "Date",rangeslider = list(thickness = 0.05)),yaxis = list(side = 'left',title = 'test',showgrid = F,zeroline = F,type = "log",showline = T),images = list(source = "https://rstudio.com/wp-content/uploads/2018/10/RStudio-Logo.png",xref = "paper",yref = "paper",xanchor = "left",yanchor = "bottom",x= 4,y=4,sizex = 5,sizey = 5,opacity = 0.8),yaxis2 = list(side = 'right',overlaying = "y",showline = T))

解决方法

问题是您无法访问 Rstduio-logo.png。

1. 创建一个 www 文件夹
2. 在这个 www 文件夹中放一个 .png 假设我称之为 test.png
3. 那么简单：

layout(images = list(source = "test.png"))