gvisAreaChart: Google Area Chart with R \Sexpr{googleChartName <-...

In googleVis: R Interface to Google Charts

Google Area Chart with R \Sexpr{googleChartName <- "areachart"} \Sexpr{gvisChartName <- "gvisAreaChart"}

Description

The gvisAreaChart function reads a data.frame and creates text output referring to the Google Visualisation API, which can be included into a web page, or as a stand-alone page.

Usage

gvisAreaChart(data, xvar = "", yvar = "", options = list(), chartid)

Arguments

data	a data.frame to be displayed as an area chart
xvar	name of the character column which contains the category labels for the x-axes.
yvar	a vector of column names of the numerical variables to be plotted. Each column is displayed as a separate line.
options	list of configuration options, see: \Sexpr[results=rd]{gsub("CHARTNAME", googleChartName, readLines(file.path(".", "inst", "mansections", "GoogleChartToolsURLConfigOptions.txt")))} \Sexpr[results=rd]{paste(readLines(file.path(".", "inst", "mansections", "gvisOptions.txt")))}
chartid	character. If missing (default) a random chart id will be generated based on chart type and tempfile

Details

The area chart is rendered within the browser using SVG or VML and displays tips when hovering over points.

Value

\Sexpr[results=rd]{paste(gvisChartName)}

returns list of class \Sexpr[results=rd]{paste(readLines(file.path(".", "inst", "mansections", "gvisOutputStructure.txt")))}

Author(s)

Markus Gesmann [e-mail],

Diego de Castillo [e-mail]

References

Google Chart Tools API: \Sexpr[results=rd]{gsub("CHARTNAME", googleChartName, readLines(file.path(".", "inst", "mansections", "GoogleChartToolsURL.txt")))}

See Also

See also print.gvis, plot.gvis for printing and plotting methods

Examples

## Please note that by default the googleVis plot command
## will open a browser window and requires an internet
## connection to display the visualisation.

df=data.frame(country=c("US", "GB", "BR"), val1=c(1,3,4), val2=c(23,12,32))

## Area chart
Area1 <- gvisAreaChart(df, xvar="country", yvar=c("val1", "val2"))
plot(Area1)

## Stacked chart
Area2 <- gvisAreaChart(df, xvar="country", yvar=c("val1", "val2"),
      options=list(isStacked=TRUE))
plot(Area2)


## Add a customised title
Area3 <- gvisAreaChart(df, xvar="country", yvar=c("val1", "val2"),
             options=list(title="Hello World",
                          titleTextStyle="{color:'red',fontName:'Courier',fontSize:16}"))
plot(Area3)

## Not run: 
## Change y-axis to percentages
Area3 <- gvisAreaChart(df, xvar="country", yvar=c("val1", "val2"),
                       options=list(vAxis="{format:'#,###%'}"))
plot(Area3)

## End(Not run)

googleVis documentation built on May 29, 2024, 9:24 a.m.