Apple Motion 1.0.1 Manual do Utilizador descarregar pdf (Página 8)

2.1 Installation

You can install googleVis in the usual way from CRAN, e.g.:

R> install.packages('googleVis')

The installation was successful if the command library(googleVis) gives you

the following message:

R> library(googleVis)

Welcome to googleVis version 0.5.8

Please read the Google API Terms of Use

before you start using the package:

https://developers.google.com/terms/

Note, the plot method of googleVis will by default use

the standard browser to display its output.

See the googleVis package vignettes for more details,

or visit http://github.com/mages/googleVis.

To suppress this message use:

suppressPackageStartupMessages(library(googleVis))

2.2 Using the googleVis package

The individual functions of the googleVis package are documented in the help

pages. Here we will cover only the principles of the package.

As an example we will show how to generate a motion chart as displayed in Figure 1.

It works similarly for the other A PIs. Further examples are covered in the de mos

of the googleVis package.

The design of the visualisation functions is fairly generic. The name of the visuali-

sation function is ’gvis’ + ChartType. So for the Motion Chart we have:

gvisMotionChart(data, idvar='id', timevar='date',

options=list(), chartid)

Here data is the input data.frame and idvar and timevar specify the column

names of the id variable and time variable for the plot, while display options are set

in an optional list, which we discuss in more detail on page 19. The options and

See demo(package="googleVis") for a list of the available demos.

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Apple Motion 1.0.1 Manual do Utilizador Página 8