在tradingview上使用安全功能，如何使空白消除？
在tradingview上使用安全功能，如何使空白消除？
提问于 2022-02-24 08:39:01
我试图在15分钟的图表上绘制多个时间框架EMA，这是我的代码。
//@version=5
indicator(title='higher tf', overlay=true)
// 4 hr
show_4h = input(title='Show 4 hour', defval=true, group = "4 HOUR")
show_ema20_4 = input(title='Show 20 EMA of 4 hour', defval=true, group = "4 HOUR")
ema20_4_period = input(title='20 EMA of 4 hour Period', defval=20, group = "4 HOUR")
show_ema50_4 = input(title='Show 50 EMA of 4 hour', defval=true, group = "4 HOUR")
ema50_4_period = input(title='50 EMA of 4 hour Period', defval=50, group = "4 HOUR")
show_ema100_4 = input(title='Show 100 EMA of 4 hour', defval=true, group = "4 HOUR")
ema100_4_period = input(title='100 EMA of 4 hour Period', defval=100, group = "4 HOUR")
show_ema200_4 = input(title='Show 200 EMA of 4 hour', defval=true, group = "4 HOUR")
ema200_4_period = input(title='200 EMA of 4 hour Period', defval=200, group = "4 HOUR")
ema20_4 = request.security(syminfo.tickerid, '360', ta.ema(close, ema20_4_period),lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
ema50_4 = request.security(syminfo.tickerid, '360', ta.ema(close, ema50_4_period),lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
ema100_4 = request.security(syminfo.tickerid, '360', ta.ema(close, ema100_4_period), lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
ema200_4 = request.security(syminfo.tickerid, '360', ta.ema(close, ema200_4_period), lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
plot(show_4h ? show_ema20_4 ? ema20_4 : na : na, title='20 EMA 4 hour')
plot(show_4h ?show_ema50_4?ema50_4: na : na, title="50 EMA 4 hour")
plot(show_4h ?show_ema100_4?ema100_4: na : na, title="100 EMA 4 hour")
plot(show_4h ?show_ema200_4?ema200_4: na : na, title="200 EMA 4 hour")在绘图时，图上有步骤。
然而，当我使用内置指示器并将时间框架更改为4小时时，这条线是完全平滑的。
看上去就是这样。
红线是内置的指示灯，蓝线是我的指示灯.
我怎样才能使这条线平滑？
回答 1
Stack Overflow用户
发布于 2022-02-26 05:16:00
您面临这个问题，因为您使指数移动平均的时间框架值为360，这意味着6 hours，因此，一旦打开任何图表，均方将持续6小时，您应该将其更改为timeframe.period，使其类似于时间框架timeframe.period。
//@version=5
indicator(title='higher tf', overlay=true)
// 4 hr
show_4h = input(title='Show 4 hour', defval=true, group = "4 HOUR")
show_ema20_4 = input(title='Show 20 EMA of 4 hour', defval=true, group = "4 HOUR")
ema20_4_period = input(title='20 EMA of 4 hour Period', defval=20, group = "4 HOUR")
show_ema50_4 = input(title='Show 50 EMA of 4 hour', defval=true, group = "4 HOUR")
ema50_4_period = input(title='50 EMA of 4 hour Period', defval=50, group = "4 HOUR")
show_ema100_4 = input(title='Show 100 EMA of 4 hour', defval=true, group = "4 HOUR")
ema100_4_period = input(title='100 EMA of 4 hour Period', defval=100, group = "4 HOUR")
show_ema200_4 = input(title='Show 200 EMA of 4 hour', defval=true, group = "4 HOUR")
ema200_4_period = input(title='200 EMA of 4 hour Period', defval=200, group = "4 HOUR")
ema20_4 = request.security(syminfo.tickerid, timeframe.period, ta.ema(close, ema20_4_period),lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
ema50_4 = request.security(syminfo.tickerid, timeframe.period, ta.ema(close, ema50_4_period),lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
ema100_4 = request.security(syminfo.tickerid, timeframe.period, ta.ema(close, ema100_4_period), lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
ema200_4 = request.security(syminfo.tickerid, timeframe.period, ta.ema(close, ema200_4_period), lookahead = barmerge.lookahead_on, gaps=barmerge.gaps_on)
plot(show_4h ? show_ema20_4 ? ema20_4 : na : na, title='20 EMA 4 hour')
plot(show_4h ?show_ema50_4?ema50_4: na : na, title="50 EMA 4 hour")
plot(show_4h ?show_ema100_4?ema100_4: na : na, title="100 EMA 4 hour")
plot(show_4h ?show_ema200_4?ema200_4: na : na, title="200 EMA 4 hour")页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/71249201
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