Add a line to an existing chart (bar, scatter and line types supported). On scatter charts you can also add a smooth line.
add_line( ax, mapping, data = NULL, type = c("line", "spline"), serie_name = NULL ) add_smooth_line( ax, formula = y ~ x, model = c("lm", "loess"), n = 100, ..., type = c("line", "spline"), serie_name = NULL )
ax | An |
---|---|
mapping | Default list of aesthetic mappings to use for chart. |
data | A |
type | Type of line. |
serie_name | Name for the serie displayed in tooltip and legend. |
formula | Formula passed to the |
model | |
n | Number of points used for predictions. |
... | Arguments passed to |
A apexcharts
htmlwidget
object.
library(apexcharter) # Bar ---- data("climate_paris") # Add a line on a column's chart apex(climate_paris, aes(month, precipitation), type = "column") %>% add_line(aes(month, temperature)) # Add secondary axis apex(climate_paris, aes(month, precipitation), type = "column") %>% add_line(aes(month, temperature)) %>% ax_yaxis( title = list(text = "Precipitation (in mm)") ) %>% ax_yaxis2( opposite = TRUE, decimalsInFloat = 0, title = list(text = "Temperature (in degree celsius)") ) %>% ax_dataLabels( enabled = TRUE, enabledOnSeries = list(1) ) # Scatter ---- # add smooth line on scatter plot apex(cars, aes(speed, dist), type = "scatter") %>% add_line(aes(x, y), data = lowess(cars), serie_name = "lowess") # or directly apex(cars, aes(speed, dist), type = "scatter") %>% add_smooth_line() apex(cars, aes(speed, dist), type = "scatter") %>% add_smooth_line(model = "loess", span = 1) apex(cars, aes(speed, dist), type = "scatter") %>% add_smooth_line(model = "loess", degree = 1) apex(cars, aes(speed, dist), type = "scatter") %>% add_smooth_line(formula = y ~ poly(x, 2)) apex(cars, aes(speed, dist), type = "scatter") %>% add_smooth_line(model = "lm", serie_name = "lm") %>% add_smooth_line(model = "loess", serie_name = "loess")