dyRibbon plugin adds a horizontal band of colors that runs through the chart. It can be useful to visualize categorical variables (http://en.wikipedia.org/wiki/Categorical_variable) that change over time (along the x-axis).
dyRibbon plugin adds a horizontal band of colors that runs through the chart. It can be useful to visualize categorical variables (http://en.wikipedia.org/wiki/Categorical_variable) that change over time (along the x-axis).
dyRibbon(dygraph, data = NULL, palette = NULL, parser = NULL, top = 1, bottom = 0)
dygraph |
Dygraph to add plugin to |
data |
Vector of numeric values in the range from 0 to 1 |
palette |
Vector with colors palette |
parser |
JavaScrip function (function (data, dygraph)) returning the array of numeric values. Parser is used if no data was provided |
top |
Vertical position of the top edge of ribbon relative to chart height. |
bottom |
Vertical position of the bottom edge of ribbon relative to chart height. |
## Not run:
library(quantmod)
getSymbols("SPY", from = "2016-12-01", auto.assign=TRUE)
difference <- SPY[, "SPY.Open"] - SPY[, "SPY.Close"]
decreasing <- which(difference < 0)
increasing <- which(difference > 0)
dyData <- SPY[, "SPY.Close"]
ribbonData <- rep(0, nrow(dyData))
ribbonData[decreasing] <- 0.5
ribbonData[increasing] <- 1
dygraph(dyData) %>%
dyRibbon(data = ribbonData, top = 0.1, bottom = 0.02)
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.