条件：昨天换手率大>=前天换手率50%  今天股价回调幅度<昨天涨幅的50%

选股源码：

xg:ref(vol/capital*100,1)>=ref(vol/capital*100,2)*0.5 and (c-h)/h*100<=ref((c-ref(c,1))/ref(c,1)*100,1)*0.5;

上式是当日最高价回幅计算，
如果"今天股价回调幅度”是相对昨日而言，则用下式试试

xg2:ref(vol/capital*100,1)>=ref(vol/capital*100,2)*0.5 and abs((c-ref(c,1))/ref(c,1)*100)<=abs(ref((c-ref(c,1))/ref(c,1)*100,1)*0.5) and ref(c,1)>ref(c,2) and c<ref(c,1);

或者改成这样

xg2:ref(vol/capital*100,1)>=ref(vol/capital*100,2)*1.5 and abs((c-ref(c,1))/ref(c,1)*100)<=abs(ref((c-ref(c,1))/ref(c,1)*100,1)*0.5) and ref(c,1)>ref(c,2) and c<ref(c,1);