(Adds U.S. data, new analyst comment, FX table, byline, NEW YORK dateline; updates prices) * Rise in U.S. core PCE index, year-on-year, slows * Orders for U.S. durables advance modestly * Dollar/yen on track for weekly loss after BoJ policy tweak By Gertrude Chavez-Dreyfuss and Harry Robertson NEW YORK/LONDON, Dec 23 (Reuters) – The dollar gained against most currencies in choppy trading on Friday, tracking Treasury yields, as U.S. data showing a slowdown in the rise of one measure of inflation is not likely to prevent the Federal Reserve from keeping interest rates higher for longer. The personal consumption expenditures (PCE) price index rose 0.1% last month after climbing 0.4% in October. In the 12 months through November, the PCE index increased 5.5% after advancing 6.1% in October. Excluding the volatile food and energy components, the PCE price index gained 0.2% after increasing 0.3% in October. The so-called core PCE price…
