gvisCalendar function

Google Calendar Chart with R googleChartName <- "calendar"

gvisChartName <- "gvisCalendar"

A calendar chart is a visualization used to show activity over the course of a long span of time, such as months or years. They're best used when you want to illustrate how some quantity varies depending on the day of the week, or how it trends over time.

gvisCalendar(data, datevar = "", numvar = "", options = list(), chartid)

Arguments

• data: a data.frame. The data has to have at least two columns, one with date information (datevar) and one numerical variable.

• datevar: column name of data which shows the date dimension. The information has to be of class Date or POSIX* time series.

• numvar: column name of data which shows the values to be displayed against datevar. The information has to be numeric.

• 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.

Returns

paste(gvisChartName) returns list of class

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

Warning

The calendar chart may be undergoing substantial revisions in future Google Charts releases.

Examples

cl1 <- gvisCalendar(Cairo, datevar="Date", numvar="Temp")
plot(cl1)

## Not all months shown? 
## We can change the setting of the width ...

cl2 <- gvisCalendar(Cairo, datevar="Date", numvar="Temp",
                    options=list(width=1000))
plot(cl2)

## ... or the cell size
cl3 <- gvisCalendar(Cairo, datevar="Date", 
                    numvar="Temp", 
                    options=list(calendar="{ cellSize: 10 }"))
plot(cl3)

## Example with many options set
cl4 <- gvisCalendar(Cairo, datevar="Date", numvar="Temp",
                    options=list(
                    title="Daily temperature in Cairo",
                    height=320,
                    calendar="{yearLabel: { fontName: 'Times-Roman',
                               fontSize: 32, color: '#1A8763', bold: true},
                               cellSize: 10,
                               cellColor: { stroke: 'red', strokeOpacity: 0.2 },
                               focusedCellColor: {stroke:'red'}}")
                  )
plot(cl4)

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.

Author(s)

Markus Gesmann markus.gesmann@gmail.com ,

Diego de Castillo decastillo@gmail.com