如何扩展移动平均线图？
ma20= sma(close, 20)
plot(ma20, color = color.red)
extend=extend.right->此处不起作用，仅使用line.new((
Plots不能在Pine中扩展。你必须使用线条
我以前也解决过类似的问题，但这可能不是你想要的
不过，它可能会给你一些想法。
//@version=4
study(title="5 Horizontal EMA", shorttitle="5 H. EMA", overlay=true)
len1 = input(10, minval=8, title="Length entry ema")
len2 = input(21, minval=8, title="Length fast ema")
len3 = input(55, minval=8, title="Length medium ema")
len4 = input(100, minval=8, title="Length slow ema")
len5 = input(200, minval=8, title="Length very slow ema")
src = input(close, title="Source")
var bool show_hlines = input(true, "Show horizontal lines", input.bool)
var bool show_emas = not show_hlines
var color_entryema = color.green
var color_fastema = color.orange
var color_mediumema = color.red
var color_slowema = color.white
var color_veryslowema = color.purple
var line_entryema = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_entryema : na, style=line.style_dashed)
var line_fastema = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_fastema : na, style=line.style_dashed)
var line_mediumema = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_mediumema : na, style=line.style_dashed)
var line_slowema = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_slowema : na, style=line.style_dashed)
var line_veryslowema = line.new(x1=na, y1=na, x2=na, y2=na, xloc=xloc.bar_time, extend=extend.right, color=show_hlines ? color_veryslowema : na, style=line.style_dashed)
var label_entryema = label.new(x=na, y=na, text=tostring(len1), xloc=xloc.bar_time, color=show_hlines ? color_entryema : na, textcolor=show_hlines ? color_entryema : na, style=label.style_none)
var label_fastema = label.new(x=na, y=na, text=tostring(len2), xloc=xloc.bar_time, color=show_hlines ? color_fastema : na, textcolor=show_hlines ? color_fastema : na, style=label.style_none)
var label_mediumema = label.new(x=na, y=na, text=tostring(len3), xloc=xloc.bar_time, color=show_hlines ? color_mediumema : na, textcolor=show_hlines ? color_mediumema : na, style=label.style_none)
var label_slowema = label.new(x=na, y=na, text=tostring(len4), xloc=xloc.bar_time, color=show_hlines ? color_slowema : na, textcolor=show_hlines ? color_slowema : na, style=label.style_none)
var label_veryslowema = label.new(x=na, y=na, text=tostring(len5), xloc=xloc.bar_time, color=show_hlines ? color_veryslowema : na, textcolor=show_hlines ? color_veryslowema : na, style=label.style_none)
f_moveLine(_id, _x, _y) =>
line.set_xy1(_id, _x, _y)
line.set_xy2(_id, _x+1, _y)
f_moveLabel(_id, _x, _y) =>
label.set_xy(_id, _x, _y)
entryema = ema(src, len1)
fastema = ema(src, len2)
mediumema = ema(src, len3)
slowema = ema(src, len4)
veryslowema = ema(src, len5)
if (hour==0 and minute==0 and year(time)==year(timenow) and month(time)==month(timenow) and dayofmonth(time)==dayofmonth(timenow))
f_moveLine(line_entryema, time, entryema)
f_moveLine(line_fastema, time, fastema)
f_moveLine(line_mediumema, time, mediumema)
f_moveLine(line_slowema, time, slowema)
f_moveLine(line_veryslowema, time, veryslowema)
f_moveLabel(label_entryema, time, entryema)
f_moveLabel(label_fastema, time, fastema)
f_moveLabel(label_mediumema, time, mediumema)
f_moveLabel(label_slowema, time, slowema)
f_moveLabel(label_veryslowema, time, veryslowema)
plot(entryema, color=show_emas ? color_entryema : na, linewidth=1, title="Entry EMA")
plot(fastema, color=show_emas ? color_fastema : na, linewidth=1, title="Fast EMA")
plot(mediumema, color=show_emas ? color_mediumema : na, linewidth=1, title="Medium EMA")
plot(slowema, color=show_emas ? color_slowema : na, linewidth=1, title="Slow EMA")
plot(veryslowema, color=show_emas ? color_veryslowema : na, linewidth=1, title="Veryslow EMA")
来源：标签水平EMA线(变量(