问题
hc %>%
hc_add_series(name = "London", data = citytemp$london, type = "area") %>%
hc_rm_series(name = "New York")
I want to export hc
as a png or jpg. This can be done by selecting Export - Save as Image but I'd like to do it through codes because I have multiple plots to export. I have tried the followings but it returned a blank image:
png('hc.png', width = 800,height = 400)
print(hc)
dev.off()
回答1:
This should be possible with the webshot package (see question here: https://github.com/jbkunst/highcharter/issues/186)
library(webshot)
library(highcharter)
library(plyr)
data("citytemp")
plot <- highchart() %>%
hc_add_series(name = "London", data = citytemp$london, type = "area") %>%
hc_rm_series(name = "New York")
htmlwidgets::saveWidget(widget = plot, file = "~/plot.html")
setwd("~")
webshot::webshot(url = "plot.html",
file = "plot.png")
来源:https://stackoverflow.com/questions/64355084/programatically-save-an-echarts4r-chart