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#1
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Goodness of fit function
Have several hundred thousand records in an Access Database.
Exported select records to Excel. There are thirteen months of values per record, along with a derived Year-To-Date value. Used a weighted formula provided by Management to calculate the Year-To-Date (YTD) value for each record from the other thirteen values. YTD is calculated in part from the thirteen values, BUT other variables are part of the formula also. Is there a statistical function in Excel that displays the probability that one specific value, (in this case Year-toDate) was derived from the group of original (thirteen) values? example: values: 114 228 439 683 798 838 798 252 483 585 373 381 441 and my weighted Year-to-Date is 521. Is there an Excel function that gives me the probability of how well the value 521 fits into the other thirteen values? Like chi-square maybe. Covariance. Or Correlation. I dunno. Trying to prove to management I replicated their formula precisely without having to laboriously re-create their stinkin' formula in Excel with the original data. Original data table is VERY large with many variables affecting the Year-to-Date calculation. For example, if the result of this Excel formula determined there was only a .0001% chance that 521 DID NOT "fit" (maybe not the right word), or could not be derived, from the other thirteen values, Management would be appeased. |
#2
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Goodness of fit function
I'm more of a finance person than a statistics person, but under Excel add-ins is a Statistics Package. It includes some of the following formulas: CHIDIST COVAR CORREL Don't know if they do what you want, but maybe it will give you a starting point of where to look. -- Lotus123 ------------------------------------------------------------------------ Lotus123's Profile: http://www.excelforum.com/member.php...o&userid=28611 View this thread: http://www.excelforum.com/showthread...hreadid=480749 |
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