Apple Motion 1.0.1 Manual do Utilizador descarregar pdf (Página 10)

2.3 Motion Chart Example

Following the documentation of the Google Motion Chart API we need a data

set which has at least four columns: one identifying the variable we would like to

plot, one time variable and at least two n umerical variables, further numerical and

character columns are allowed.

As an example we use the Fruits data set:

R> data(Fruits)

R> Fruits

Fruit Year Location Sales Expenses Profit Date

1 Apples 2008 West 98 78 20 2008-12-31

2 Apples 2009 West 111 79 32 2009-12-31

3 Apples 2010 West 89 76 13 2010-12-31

4 Oranges 2008 East 96 81 15 2008-12-31

5 Bananas 2008 East 85 76 9 2008-12-31

6 Oranges 2009 East 93 80 13 2009-12-31

7 Bananas 2009 East 94 78 16 2009-12-31

8 Oranges 2010 East 98 91 7 2010-12-31

9 Bananas 2010 East 81 71 10 2010-12-31

Here we will use the columns ’Fruit’ and ’Year’ as id and time variable respec-

tively. However we could have used ’Date’ inste ad of ’Year’ as well.

R> M <- gvisMotionChart(Fruits, idvar="Fruit", timevar="Year")

The structural output of gvisMotionChart is a list of lists as described above

R> str(M)

List of 3

$ type : chr "MotionChart"

$ chartid: chr "MotionChartID212d6d31dc7d"

$ html :List of 4

..$ header : chr "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0

..$ chart : Named chr [1:7] "<!-- MotionChart generated in R 3.

.. ..- attr(*, "names")= chr [1:7] "jsHeader" "jsData" "jsDrawCh

..$ caption: chr "<div><span>Data: Fruits • Chart ID: <a h

..$ footer : chr "\n\n<span> \n R Under deve

- attr(*, "class")= chr [1:2] "gvis" "list"

The ﬁrst two items of the list contain information about the chart type used and

the individual chart id:

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Apple Motion 1.0.1 Manual do Utilizador Página 10