Hi Sergey, Thanks for the clarification!
Kevin On Fri, Apr 3, 2015 at 5:25 AM, 'Sergey Grabkovsky' via Google Visualization API <[email protected]> wrote: > Sorry, I didn't read carefully enough. We don't provide the value, nor do > I think there's any reasonable way to calculate it. There's a stickied post > on this forum where I asked what the ideal API is for getting trendline > data out of the chart. We don't quite have a roadmap for this, but your > opinion might help us determine the right solution. > On Thu, Apr 2, 2015 at 5:53 PM Zhenyu Hu <[email protected]> wrote: > >> Hi Sergey, >> >> Thanks for the feedback! >> R2 is *coefficient of determination* which API indeed support it; >> however,* coefficient of correlation (r)* is a different one. >> >> Below is the link to show the difference between the two >> http://mathbits.com/MathBits/TISection/Statistics2/correlation.htm >> >> Thanks, >> Kevin >> >> On Thu, Apr 2, 2015 at 6:44 AM, 'Sergey Grabkovsky' via Google >> Visualization API <[email protected]> wrote: >> >>> The coefficient of correlation (or the r^2 value) should indeed be >>> supported for all trendlines. You can enable it by setting the trendline >>> option "showR2" to true. >>> >>> On Wed, Apr 1, 2015 at 7:29 PM Zhenyu Hu <[email protected]> >>> wrote: >>> >>>> Dear All, >>>> >>>> I am using Google Chart API to draw a scattered polynomial trend line. >>>> I know the chart provide the R square (coefficient of determination) >>>> which I am using, but I just wonder if it also provide the value of >>>> coefficient of correlation? >>>> I want to get this value to make cross reference. >>>> >>>> PS: I didn't find it from the API document; if they don't support it, >>>> does anybody know if there is a JS plugin to calculate it. >>>> >>>> Thanks a lot, >>>> Kevin >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Google Visualization API" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To post to this group, send email to >>>> [email protected]. >>>> Visit this group at >>>> http://groups.google.com/group/google-visualization-api. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "Google Visualization API" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/google-visualization-api/djzhAAqypJk/unsubscribe >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> >> >>> To post to this group, send email to >>> [email protected]. >>> Visit this group at >>> http://groups.google.com/group/google-visualization-api. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google Visualization API" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to >> [email protected]. >> Visit this group at >> http://groups.google.com/group/google-visualization-api. >> For more options, visit https://groups.google.com/d/optout. >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "Google Visualization API" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/google-visualization-api/djzhAAqypJk/unsubscribe > . > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to > [email protected]. > Visit this group at > http://groups.google.com/group/google-visualization-api. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-visualization-api. For more options, visit https://groups.google.com/d/optout.
