googleVis (version 0.7.1)

gvisGauge: Google Gauge with R googleChartName <- "gauge" gvisChartName <- "gvisGauge"

Description

The gvisGauge 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. The actual chart is rendered by the web browser using SVG or VML.

Usage

gvisGauge(data, labelvar = "", numvar = "", options = list(), chartid)

Value

paste(gvisChartName) returns list of class

paste(readLines(file.path(".", "inst", "mansections", "gvisOutputStructure.txt")))

Arguments

data

a data.frame to be displayed as a gauge

labelvar

name of the character column which contains the category labels for the slice labels.

numvar

a vector of column names of the numerical variables of the slice values.

options

list of configuration options, see:

gsub("CHARTNAME", googleChartName, readLines(file.path(".", "inst", "mansections", "GoogleChartToolsURLConfigOptions.txt")))

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

Author

Markus Gesmann ,

Diego de Castillo

References

Google Chart Tools API: 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.

Gauge1 <- gvisGauge(CityPopularity, options=list(min=0, max=800, greenFrom=500,
                    greenTo=800, yellowFrom=300, yellowTo=500,
                    redFrom=0, redTo=300))

plot(Gauge1)