Nikkei edges up as strong earnings offset weak industrial output

* Macro funds shift to Japan shares - analyst * Earnings impress investors - analysts By Ayai Tomisawa TOKYO, July 30 (Reuters) - Japan's Nikkei share average edged up to hover at six-month highs in choppy trade on Wednesday morning, as strong corporate earnings led by Honda Motor Co and Tokyo Electron Ltd eclipsed data showing weak industrial output. The Nikkei tacked on 0.2 percent to 15,643.55 in midmorning trade after moving in and out of negative territory. On Tuesday, the