Geek Answers Handbook

How to set DataLabel format and axis label angle in R highcharter package

I am experimenting with the R highcharter package to create a histogram function. The code is as follows. I ask for help in 1- How do I change the format of dataLabels to a percentage? 2-How to set the angle of the labels on the X axis. I want to set it to 45 degrees

hcbar_categorycount_vertical <- function(data=x,var=y){
df <- data.frame(prop.table(table(data[var])))
names(df) <- c(var,'Proportion')
df$Proportion <- round(df$Proportion*100,2)
df <- df%>% arrange(-Proportion)
df[,1] <- as.character(df[,1])
df[,1] <- factor(df[,1], levels = df[,1])
df$Cumulative <- round(cumsum(df$Proportion),2)

highchart(debug = TRUE) %>%
hc_xAxis(categories=df[[1]]) %>%
hc_yAxis(labels = list(format = "{value}%"), max = 100) %>%
hc_add_series(name=var,data=df$Proportion,type = "column",dataLabels =       list(enabled = TRUE, format='{point.label}%'))
}

I'm not sure what the "format" syntax should be in the dataLabel property list. This code does not seem to work. I already mentioned the high chart vignette and this site: http://jkunst.com/highcharter/highcharts-api.html#hc_xaxis-and-hc_yaxis

But could not find the answer. Thanks for your help in advance.

+4
source share
2 answers

@ jeganathan-Velit,

1) '{point.label}%' '{point.y}%'

2) . highcharts . hc_xAxis labels = list(rotation = 90)

highcharter

- , API .

+7

http://api.highcharts.com/highcharts#xAxis.labels.rotation

.

hc_xAxis(categories=df[[1]],labels = list(rotation=-45)) %>%
hc_yAxis(labels = list(format = "{value}%"), max = 100) %>%
hc_add_series(name=var,data=df$Proportion,type = "column",dataLabels = list(enabled = TRUE, format='{point.y}%'))
+2

More articles:


All Articles