Glad you got it working, Marcin.  I should have also pointed you at the
Animation page:
https://developers.google.com/chart/interactive/docs/animation

On Mon, Jan 26, 2015 at 7:36 AM, Marcin Tkaczyk <[email protected]>
wrote:

> Thanks Daniel!
>
> I played around a bit and was able to get a scatter plot version of my
> graph to work using the bubbles in a motion chart.  I've attached a .csv
> with data and the following R code, if anyone is interested in a graph of
> WTI Crude Oil's futures price term structure, evolving in time, from
> 07/01/2014 through 01/14/2015 (Note: after the graph is rendered, I then
> manually change the "%Yield" to be on the y-axis, and "Months" on the
> xAxis...I assume I can do that in the script but haven't checked how quite
> yet :) ).
>
>
> library(googleVis)
> CL <- read.csv("C:/Example/CL_yld_weekly.csv")
> CL$Date <- as.Date(as.character(CL$Date), format="%Y%m%d")
> CL_motion <- gvisMotionChart(CL, idvar="Name", timevar="Date")
> plot(CL_motion)
>
>
>
> I appreciate the advice on draw(), I was actually wondering if that was an
> option!  My next move was to graph a series of Crude Oil Inventory over the
> same period.  That is, I was envisioning a single line chart that adds 1
> data point at a time to give it motion...
>
>
>
> On Sun, Jan 25, 2015 at 7:14 PM, 'Daniel LaLiberte' via Google
> Visualization API <[email protected]> wrote:
>
>> Marcin,
>>
>>
>> The kind of animation you want to do is not built in to the Google Charts
>> capabilities given one data table. The Motion Chart (
>> https://developers.google.com/chart/interactive/docs/gallery/motionchart)
>> is close but it won't animate the line chart.
>>
>> Instead, to animate changes in Google Charts, you need to repeatedly call
>> the draw() method on a single chart, once for each frame, giving it
>> different data each time.    A LineChart would make more sense than a
>> scatter chart but either could work.   See the docs on how to use the
>> LineChart here:
>> https://developers.google.com/chart/interactive/docs/gallery/linechart
>>
>> The structure of the data, where you want a line between points, would be
>> 10 rows (one for each variable), 2 columns, like this for the first frame:
>>
>> var   value
>> 1      4
>> 2      5
>> 3      6
>> ...
>>
>> And for the next frame:
>>
>> var   value
>> 1      4
>> 2      4
>> 3      4
>> ...
>>
>> I hope that gives you some ideas how to proceed.
>>
>>
>>
>> On Sun, Jan 25, 2015 at 10:28 AM, Marcin Tkaczyk <[email protected]
>> > wrote:
>>
>>> Hi,
>>>
>>> I am working with financial data in R and wanted to animate the
>>> progression of a scatter plot, in time, using googleVis. For example, lets
>>> say I have a time series of 10 variables. Thus, for each day in the time
>>> series, I would like to scatter plot 10 data points on the y-axis, with the
>>> x-axis simply being an index from 1 to 10.  In addition, I would like the
>>> y-axis scaling to be fixed in time, so that not only is the shape of the
>>> line reflected, but it will also illustrate any "rising" or "dropping" of
>>> the line's level.
>>>
>>> The following is a simple example with a short time series of 3
>>> variables.
>>>
>>> Date, Var1, Var2, Var3
>>> 01/01, 4, 5, 6
>>> 01/02, 4, 4, 4
>>> 01/03, 3, 3, 3
>>> 01/04, 3, 2, 1
>>>
>>>
>>> In the above simple example, I would expect there to be 4 separate
>>> "frames" in the animation, with the following progression:
>>> Scatter plot #1. upward sloping line, with the first point starting at 4
>>> Scatter plot #2. zero slope line, with all points at 4
>>> Scatter plot #3. zero slope line, with all points at 3 (i.e. if the
>>> y-axis is fixed, the line should appear to "drop")
>>> Scatter plot #4. downward sloping line, with the first point starting at
>>> 3
>>>
>>> The goal is to illustrate the evolution of the shape of a line, in
>>> addition to it's associated level on the y-axis (i.e. in the example above,
>>> the line "drops" from Scatter plot #2 to Scatter plot #3).
>>>
>>> Thank you!
>>> mar
>>>
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>>
>>
>>
>> --
>> Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2>
>>  - 978-394-1058
>> [email protected] <[email protected]>   5CC, Cambridge MA
>> [email protected] <[email protected]> 9 Juniper Ridge
>> Road, Acton MA
>>
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-- 
Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2>  -
978-394-1058
[email protected] <[email protected]>   5CC, Cambridge MA
[email protected] <[email protected]> 9 Juniper Ridge
Road, Acton MA

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