European Factors to Watch-Earnings in focus after U.S. misses

EDINBURGH, July 25 (Reuters) - Earnings news was set to provide the main focus of trade on Friday, with European stocks seen edging lower after disappointment in U.S. results ahead of a busy day for corporate updates on the continent. Online retailer Amazon fell in out of hours trading on Wall Street after it posted a much larger-than-expected loss in the second quarter, while Caterpillar, the world's largest maker of earth-moving equipment, fell after cutting its outlook for sales. F