Graphing Real-time multi variable data

[williambel...@gmail.com]

Hey all, I have a large data set with multiple continuous variables for 2 subjects at a time. I would like to be able to make the 2 variables into a single point that moves continuously (in real time through the data set) in the x y plane for each person. Is this something I can do in d3 and if so any direction would be helpful. It is quite the endeavor for me as I am a complete novice.

[williambel...@gmail.com]

I would also like to mention that I have searched online for something similar with no luck... the clothes thing would be something like https://bost.ocks.org/mike/path/

[Guillaume Calmettes]

Hi William,

1- Could you provide the structure of the two sets of data you are interested to animate?

2- Also, are you interested in just getting one point moving in the plane for each iteration or to get a line “growing" on the plane (like a snake)

Guillaume

On Oct 3, 2017, 6:17 PM -0700, williambel...@gmail.com, wrote:

I would also like to mention that I have searched online for something similar with no luck... the clothes thing would be something like https://bost.ocks.org/mike/path/

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[Guillaume Calmettes]

One simple solution would be to create 2 line generators (https://github.com/d3/d3-shape#lines) that get the (k.1, f.1) and (k.2, f.2) as (x, y) input.

So you would get a path generated for the person 1 and a path for the person 2.

You can then update the 2 paths for each iteration.

See this bl.ocks for example: https://bl.ocks.org/gcalmettes/2097c8e3e077bbd1b30dce3dbb93ac58

(Note that if you anticipate to have a huge amount of point, a canvas version might be better: https://bl.ocks.org/gcalmettes/fd80abba670527a9736d69486e557735) 

On Oct 4, 2017, 12:01 AM -0700, williambel...@gmail.com, wrote:

Hey Guillaume,

Thanks for getting back to me!

here is what some of the data looks like:

ID    sec K.1    K.2     f.1        f.2

100   7   NA     3.00   151.0   135.3   

100   8   NA     3.00   210.4   210.8

100   9   4.00   3.00   203.0   209.0

100  10  4.00   3.00   194.4   196.8

100  11  4.00   3.00   201.7   190.1

sec  is second, k.1 and k.2 are continuous(rated per second on a likert scale 1-5) .1 for person 1 and .2 for person 2, and f._ is a frequency that is also per second that i will need to center eventually. I am still cleaning my data so the f. data is currently separate from the k. data but ideally my data will look like above when i am finished cleaning. essentially i would like k. to be my x axis and f. to be y. Also the data set is rather large multiple sessions(ID) with around 100,000 observations

to answer the second part of the question i would actually like 2 lines to be growing in the plane (a line for each person). Thank you much for responding to my inquiry!

William 

[williambel...@gmail.com]

those graphs are incredible, thank you for sending them my way... hopefully i can dig in and work with this