最近n天内如何进行SMA Crossover？

Question

如何在最近n天内进行SMA Crossover？

例如最近10个交易日内20日上方的交叉收盘价

Answer 1

//@version=3
study("My Script")
numBars = input(title="Number of days", type=integer, defval=20, minval=1, maxval=300)

sma = sma(close, numBars)


// the next two string are used in case the chart's resolution differs from daily
securDaily = security(tickerid, 'D', close)
daylyRes = period == 'D' ? close : securDaily


crossed = 0
for i = 0 to numBars
    if crossover(sma[i], daylyRes[i])
        crossed := 1
        break

plot(crossed)

在这种情况下，for循环很有用。