[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: summing up incrementally
> So what I need to do is add all the previous months of December to the > current month of December: that would just be <xsl:value-of select="sum(preceding-sibling::year/month[@month='December']/@percentage-increase)"/> But it sounds like you want a product, not a sum???? > The first year (1937) increases only 103 percent from the previous year. > > The next year (1938)shows an increase of 102 percent from 1937. But > cumalitively it shows an increase of 105 percent: 103 + 102 = 105. > > The next year (1939) shows an increae of 108 percent. Cumulatively, > this is 113: 103 + 102 + 108 = 113. cumulative interest isn't additive The increase over three years is 1.03 * 1.02 * 1.08 =~ 1.135 or 13.5% so you will need a recursive template as xpath2 doesn't have a product built in (or you could use saxon7's implementation of xpath 2 draft, which does) David -- http://www.dcarlisle.demon.co.uk/matthew XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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