I helped someone else do something similar recently (see this thread<https://groups.google.com/forum/#!msg/google-visualization-api/oaVQYRmTWKg/cBARJyn5MXYJ>). That example is a bit more complicated than what you are asking here (they also wanted to be able to add and remove columns from the chart using CategoryFilter controls), but should give you a good idea of what’s possible.
On Friday, August 17, 2012 1:32:13 PM UTC-4, kasimir wrote: > > Thanks for the reply, > I would like to compare the data on a relative basis (%), similar like two > (or more) stocks can be compared in Google Finance in a specified timeframe > where at t=0 both data-value are 0% and from there on the performance can > be compared. > Here is an example from Google Finance where the stocks of Google (in red) > is compared against Apple (in blue) in a time-frame of 1 month: > > http://www.google.com/finance?chdnp=1&chdd=1&chds=1&chdv=1&chvs=Linear&chdeh=0&chfdeh=0&chdet=1345233600000&chddm=8993&chls=IntervalBasedLine&cmpto=NASDAQ:GOOG&cmptdms=0&q=NASDAQ:AAPL&ntsp=0 > > Now I would like to use my own data and compare that to another dataset or > even compare my data against a stock. > > I'm asking because I have written a piece of software in PHP which tracks > performance data of companies and clients which is then visualized in a > google line chart, but it would be great to compare the data against each > other or against other market relevant data (like stocks or market indexes) > in a relative way. > > Hope I'm not the only one who can use this? :) > > On Thursday, August 16, 2012 11:29:50 PM UTC-4, asgallant wrote: >> >> What you want is most likely possible, but it depends on exactly how you >> want to compare the data. The chart's won't do everything for you in many >> cases, but you should be able to write javascript to format the data >> however you need for a given method of comparison. >> >> On Thursday, August 16, 2012 8:19:54 PM UTC-4, kasimir wrote: >>> >>> I have looked around but couldn't find an answer. >>> >>> I use a line-chart which gets its data from an XML file (updated daily >>> with date and a value per entry) and this works great. >>> Now my question, is there a way two data sources can be compared >>> against each other on a relative basis, kinda like how its done at Google >>> Finance when you compare one stock against an other, where the chart turns >>> relative and compares the performance? >>> >>> Also is there a way that my data source can be compared with the Dow >>> Jones (for example) on a relative basis? >> >> -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-visualization-api/-/bESrK4PR25QJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
