quantmod (version 0.3-3)

chartTheme: Create A Chart Theme

Description

Create a chart.theme object for use within chartSeries to manage desired chart colors.

Usage

chartTheme(theme = "black", ...)

Arguments

theme

name of base theme

...

name=value pairs to modify

Value

• A chart.theme object

Details

Used as an argument to the chartSeries family of functions, chartTheme allows for on-the-fly modification of pre-specified chart themes. Users can modify a pre-built theme in-place, or copy the theme to a new variable for use in subsequent charting calls.

Internally a chart.theme object is nothing more than a list of values organized by chart components. The primary purpose of this is to facilitate minor modification on the fly, as well as provide a template for larger changes.

Setting style arguments for TA calls via chartTheme requires the user to pass the styles as name=value pairs with a name containing the TA call in question. See examples for assistance.

Current components that may be modified with appropriate values:

• fg.col

{foreground color} bg.col{background color} grid.col{grid color} border{border color} minor.tick{minor tickmark color} major.tick{major tickmark color} up.col{up bar/candle color} dn.col{down bar/candle color} up.up.col{up after up bar/candle color} up.dn.col{up after down bar/candle color} dn.dn.col{down after down bar/candle color} dn.up.col{down after up bar/candle color} up.border{up bar/candle border color} dn.border{down bar/candle border color} up.up.border{up after up bar/candle border color} up.dn.border{up after down bar/candle border color} dn.dn.border{down after down bar/candle border color} dn.up.border{down after up bar/candle border color}

See Also

chartSeries

Examples

chartTheme()
chartTheme('white')
chartTheme('white',up.col='blue',dn.col='red')

# A TA example
chartTheme(addRSI.col='red')

str(chartTheme())