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

In googleVis: R Interface to Google Charts

Google Stepped Area Chart with R \Sexpr{googleChartName <- "steppedarechart"} \Sexpr{gvisChartName <- "gvisSteppedAreChart"}

Description

The gvisSteppedAreaChart 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

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

Arguments

data	a data.frame to be displayed as a stepped 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 stepped 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))

## Stepped Area chart
SteppedArea1 <- gvisSteppedAreaChart(df, xvar="country", yvar=c("val1", "val2"))
plot(SteppedArea1)

## Stacked chart
SteppedArea2 <- gvisSteppedAreaChart(df, xvar="country", yvar=c("val1", "val2"),
      options=list(isStacked=TRUE))
plot(SteppedArea2)


## Add a customised title
SteppedArea3 <- gvisSteppedAreaChart(df, xvar="country", yvar=c("val1", "val2"),
             options=list(title="Hello World",
                          titleTextStyle="{color:'red',fontName:'Courier',fontSize:16}"))
plot(SteppedArea3)

## Not run: 
## Change y-axis to percentages
SteppedArea3 <- gvisSteppedAreaChart(df, xvar="country", yvar=c("val1", "val2"),
                       options=list(vAxis="{format:'#,###%'}"))
plot(SteppedArea3)

## End(Not run)

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