英文:
Bar crossover wont work on my plotted box
问题
I understand that you want to create a label that is plotted each time a bar crosses the 'boxlowzone' or 'bear_box_low'. You mentioned that you've tried various approaches, but the label doesn't plot. To address this issue, you can try the following code snippet:
// Place this code snippet inside your script, outside of any functions or conditions.
var condition_crossed = false // Initialize a condition variable
if ta.crossover(high, array.get(bear_boxlow, 1)) // Check for crossover condition
condition_crossed := true // Set the condition variable to true
if condition_crossed // Check if the condition variable is true
label.new(bar_index, high, "Label Text", color = color.red, style = label.style_label_down, textcolor = color.white, size = size.small)
This code sets up a condition_crossed variable to track whether the crossover condition has occurred. It checks for the crossover condition between 'high' and the last value in the 'bear_boxlow' array. If the condition is met, it sets condition_crossed to true. Finally, it checks if condition_crossed is true and plots the label accordingly.
Make sure to replace "Label Text" with the desired label text. This code should help you plot the label when the specified condition is met.
英文:
I have coded to create a box when a specific confition is detected, the box is stored in an array and plot on the chart correctly. I have plotted the box to cut off when price crosses the average line and all this plots ok however when i try and plot a label (or any other kind of alert) for when 'high' crosses the box line i cant get the lable to appear. I've tried nesting the label inside the main conditoin 'if', and by itself. I've also tried creating a separat array for box_lows and coding the crossover in general and whilst the code compiles Ok the condition never triggers the label even though i can see on the chart the condition should. I've no idea why this is and would appreacite any help please
I just need to be able to get label to print once current_index high is greater htan box low, it seems so simple and yet just wont plot! I'm sure the error must be something obvious but cannot work it out.
the full code is:-
//@version=5
indicator("My FVG Detector - Tester"
, overlay = true
, max_boxes_count = 500
, max_labels_count = 500
, max_lines_count = 500)
//------------------------------------------------------------------------------
//Settings
//-----------------------------------------------------------------------------{
//Fair Value Gaps
show_fvg = input(true, 'Fair Value Gaps (FVG)'
, inline = 'fvg_css'
, group = 'Fair Value Gaps')
bull_fvg_css = input.color(#2157f3, ''
, inline = 'fvg_css'
, group = 'Fair Value Gaps')
bear_fvg_css = input.color(#ff1100, ''
, inline = 'fvg_css'
, group = 'Fair Value Gaps')
fvg_usewidth = input(true, 'Min Width'
, inline = 'fvg_width'
, group = 'Fair Value Gaps')
fvg_gapwidth = input.float(1.95, ''
, inline = 'fvg_width'
, group = 'Fair Value Gaps')
fvg_method = input.string('ATR', ''
, options = ['Points', '%', 'ATR']
, inline = 'fvg_width'
, group = 'Fair Value Gaps')
fvg_extend = input.int(3, 'Extend FVG'
, minval = 0
, group = 'Fair Value Gaps')
bull_entry = input.int(80, 'Bull Entry Threshold'
, minval = 0
, group = 'Fair Value Gaps')
bull_exit = input.int(80, 'Bull Exit Threshold'
, minval = 0
, group = 'Fair Value Gaps')
adboxcount = input.int (50, "Maximum Imb Displayed", 1, group = "Chart Customization")
//-----------------------------------------------------------------------------}
//Functions
//-----------------------------------------------------------------------------{
n = bar_index
atr = ta.atr(200)
//Detect imbalance and return count over time
imbalance_detection(show, usewidth, method, width, top, btm, condition, wide)=>
var is_width = true
var count = 0
if usewidth
dist = top - btm
bull_wide = top - btm
is_width := switch method
'Points' => dist > width
'%' => dist / btm * 100 > width
'ATR' => dist > atr * width
is_true = show and condition and is_width
count += is_true ? 1 : 0
[is_true, count]
//-----------------------------------------------------------------------------}
//Arrays
//-----------------------------------------------------------------------------{
var box[] imbboxarray = array.new_box()
var line[] bear_avg_line = array.new_line()
var float[] bear_boxlow = array.new_float()
//-----------------------------------------------------------------------------}
//Fair Value Gaps
//-----------------------------------------------------------------------------{
//Bullish
[bull_fvg, bull_fvg_count] = imbalance_detection(
show_fvg
, fvg_usewidth
, fvg_method
, fvg_gapwidth
, low
, high[2]
, low > high[2] and close[1] > high[2]
, high[2] - low)
bull_top = bull_fvg
bull_width = high[2] - low
bull_avg = math.avg(low, high[2])
//Bearish
[bear_fvg, bear_fvg_count] = imbalance_detection(
show_fvg
, fvg_usewidth
, fvg_method
, fvg_gapwidth
, low[2]
, high
, high < low[2] and close[1] < low[2]
, low[2] - high)
bear_top = bear_fvg
bear_width = low[2] - high
bear_avg = math.avg(low[2], high)
bearplot = high > low[1] ? 1 : 0
// Box & Line Calc {
f_choppedoffimb(imbboxarray, bear_avg_line) =>
if array.size(imbboxarray) > 0 and array.size(bear_avg_line) > 0
for i = array.size(imbboxarray) - 1 to 0 by 1
cutbox = array.get(imbboxarray, i)
cutline = array.get(bear_avg_line, i)
boxhighzone = box.get_top(cutbox)
boxlowzone = box.get_bottom(cutbox)
boxrightzone = box.get_right(cutbox)
bear_avg_right = line.get_x2(cutline)
if na or bar_index - 1 == boxrightzone and not (high > boxhighzone)
box.set_right(array.get(imbboxarray, i), bar_index)
line.set_x2(array.get(bear_avg_line, i), bar_index)
// }
// Box Draw {
if bear_top and bear_width > 0
boxhighzone = bear_top and bear_width > 0 ? low[2] : low[0]
boxlowzone = bear_top and bear_width > 0 ? high[0] : high[2]
bear_box_low = low[1]
bear_avg_right = bar_index
imbbox = box.new(bar_index, boxhighzone, bar_index, boxlowzone, bear_fvg_css, border_style = line.style_dashed, bgcolor = color.new(bear_fvg_css, 80))
midline = line.new(bar_index, bear_avg, bear_avg_right, bear_avg, color = color.red, style = line.style_solid)
if array.size(imbboxarray) > adboxcount
box.delete(array.shift(imbboxarray))
line.delete(array.shift(bear_avg_line))
array.push(imbboxarray, imbbox)
array.push(bear_avg_line, midline)
array.push(bear_boxlow, low[1])
if ta.crossover(high, boxlowzone)
label.new(bar_index, bear_avg, "Bear", xloc = xloc.bar_index, color = color.red, style = label.style_arrowdown, textcolor = color.white, size = size.tiny)
f_choppedoffimb(imbboxarray, bear_avg_line)
// }
// Please help creating a label which is plotted each time a bar crosses the 'boxlowzone' or 'bear_box_low'. I've tried every way i can think of and none of them plot. No idea why!
As above, I've tried nesting hte conditoin within the main 'if', calling the box values from arrays, setting the condition bool up globally and then trying to change it within the'if' (which is not allowed) and have now run out of ideas
答案1
得分: 1
Here is the translated code snippet you provided:
ta.crossover() 可能在 "if" 内部不可靠，最好在每次计算时调用它。
在你的脚本中，交叉条件在你期望它为真的时候并不成立，因为 boxlowzone 并未反映出箱子的下边界，而是每个柱子都在变化。
（留下了一些调试代码，你可能也会觉得有用）
请检查以下脚本：
//@version=5
indicator("My FVG Detector - Tester"
, overlay = true
, max_boxes_count = 500
, max_labels_count = 500
, max_lines_count = 500)
//------------------------------------------------------------------------------
//设置
//-----------------------------------------------------------------------------{
//公平价值差距
show_fvg = input(true, '公平价值差距 (FVG)'
, inline = 'fvg_css'
, group = '公平价值差距')
bull_fvg_css = input.color(#2157f3, ''
, inline = 'fvg_css'
, group = '公平价值差距')
bear_fvg_css = input.color(#ff1100, ''
, inline = 'fvg_css'
, group = '公平价值差距')
fvg_usewidth = input(true, '最小宽度'
, inline = 'fvg_width'
, group = '公平价值差距')
fvg_gapwidth = input.float(1.95, ''
, inline = 'fvg_width'
, group = '公平价值差距')
fvg_method = input.string('ATR', ''
, options = ['点数', '%', 'ATR']
, inline = 'fvg_width'
, group = '公平价值差距')
fvg_extend = input.int(3, '扩展 FVG'
, minval = 0
, group = '公平价值差距')
bull_entry = input.int(80, '多头进入阈值'
, minval = 0
, group = '公平价值差距')
bull_exit = input.int(80, '多头退出阈值'
, minval = 0
, group = '公平价值差距')
adboxcount = input.int (50, "最大不平衡显示", 1, group = "图表自定义")
//-----------------------------------------------------------------------------}
//函数
//-----------------------------------------------------------------------------{
n = bar_index
atr = ta.atr(200)
//检测不平衡并返回随时间的计数
imbalance_detection(show, usewidth, method, width, top, btm, condition, wide)=>
var is_width = true
var count = 0
if usewidth
dist = top - btm
bull_wide = top - btm
is_width := switch method
'点数' => dist > width
'%' => dist / btm * 100 > width
'ATR' => dist > atr * width
is_true = show and condition and is_width
count += is_true ? 1 : 0
[is_true, count]
//-----------------------------------------------------------------------------}
//数组
//-----------------------------------------------------------------------------{
var box[] imbboxarray = array.new_box()
var line[] bear_avg_line = array.new_line()
var float[] bear_boxlow = array.new_float()
//-----------------------------------------------------------------------------}
//公平价值差距
//-----------------------------------------------------------------------------{
//多头
[bull_fvg, bull_fvg_count] = imbalance_detection(
show_fvg
, fvg_usewidth
, fvg_method
, fvg_gapwidth
, low
, high[2]
, low > high[2] and close[1] > high[2]
, high[2] - low)
bull_top = bull_fvg
bull_width = high[2] - low
bull_avg = math.avg(low, high[2])
//空头
[bear_fvg, bear_fvg_count] = imbalance_detection(
show_fvg
, fvg_usewidth
, fvg_method
, fvg_gapwidth
, low[2]
, high
, high < low[2] and close[1] < low[2]
, low[2] - high)
bear_top = bear_fvg
bear_width = low[2] - high
bear_avg = math.avg(low[2], high)
bearplot = high > low[1] ? 1 : 0
// Box & Line Calc {
f_choppedoffimb(imbboxarray, bear_avg_line) =>
if array.size(imbboxarray) > 0 and array.size(bear_avg_line) > 0
for i = array.size(imbboxarray) - 1 to 0 by 1
cutbox = array.get(imbboxarray, i)
cutline = array.get(bear_avg_line, i)
boxhighzone = box.get_top(cutbox)
boxlowzone = box.get_bottom(cutbox)
boxrightzone = box.get_right(cutbox)
bear_avg_right = line.get_x2(cutline)
if na or bar_index - 1 == boxrightzone and not (high > boxhighzone)
box.set_right(array.get(imbboxarray, i), bar_index)
line.set_x2(array.get(bear_avg_line, i), bar_index)
// }
var boxhighzone = 0.
var boxlowzone = 0.
boxhighzone := bear_top and bear_width > 0 ? low[2] : boxhighzone
boxlowzone := bear_top and bear_width > 0 ? high[0] : boxlowzone
bear_box_low = low[1]
bear_avg_right = bar_index
var belowBoxhighzone = false
if imbboxarray.size() > 0
belowBoxhighzone := (high > box.get_top(imbboxarray.last())) ? false : belowBoxhighzone
crossoverHighBoxLowZone = ta.crossover(high, boxlowzone) and belowBoxhighzone
if crossoverHighBoxLowZone
label.new(bar_index, bear_avg, "空头", xloc = xloc.bar_index, color = color.red, style = label.style_arrowdown, textcolor = color.white, size = size.tiny)
// Box Draw {
if bear_top and bear_width > 0
imbbox = box.new(bar_index, boxhighzone, bar_index, boxlowzone, bear_fvg_css, border_style = line.style_dashed, bgcolor = color.new(bear_fvg_css, 80))
midline = line.new(bar_index, bear_avg, bear_avg_right, bear_avg, color = color.red, style = line.style_solid)
if array.size(imbbox
<details>
<summary>英文:</summary>
`ta.crossover()` may not work reliably within `if`, better call it on each calculation.
In your script the crossover condition was not true at the times were you expected it to be true, since boxlowzone did not reflect the low border of the box, but was changing every bar.
(Left some debugging code inside, you may find that useful too)
Please check the script below:
//@version=5
indicator("My FVG Detector - Tester"
, overlay = true
, max_boxes_count = 500
, max_labels_count = 500
, max_lines_count = 500)
//------------------------------------------------------------------------------
//Settings
//-----------------------------------------------------------------------------{
//Fair Value Gaps
show_fvg = input(true, 'Fair Value Gaps (FVG)'
, inline = 'fvg_css'
, group = 'Fair Value Gaps')
bull_fvg_css = input.color(#2157f3, ''
, inline = 'fvg_css'
, group = 'Fair Value Gaps')
bear_fvg_css = input.color(#ff1100, ''
, inline = 'fvg_css'
, group = 'Fair Value Gaps')
fvg_usewidth = input(true, 'Min Width'
, inline = 'fvg_width'
, group = 'Fair Value Gaps')
fvg_gapwidth = input.float(1.95, ''
, inline = 'fvg_width'
, group = 'Fair Value Gaps')
fvg_method = input.string('ATR', ''
, options = ['Points', '%', 'ATR']
, inline = 'fvg_width'
, group = 'Fair Value Gaps')
fvg_extend = input.int(3, 'Extend FVG'
, minval = 0
, group = 'Fair Value Gaps')
bull_entry = input.int(80, 'Bull Entry Threshold'
, minval = 0
, group = 'Fair Value Gaps')
bull_exit = input.int(80, 'Bull Exit Threshold'
, minval = 0
, group = 'Fair Value Gaps')
adboxcount = input.int (50, "Maximum Imb Displayed", 1, group = "Chart Customization")
//-----------------------------------------------------------------------------}
//Functions
//-----------------------------------------------------------------------------{
n = bar_index
atr = ta.atr(200)
//Detect imbalance and return count over time
imbalance_detection(show, usewidth, method, width, top, btm, condition, wide)=>
var is_width = true
var count = 0
if usewidth
dist = top - btm
bull_wide = top - btm
is_width := switch method
'Points' => dist > width
'%' => dist / btm * 100 > width
'ATR' => dist > atr * width
is_true = show and condition and is_width
count += is_true ? 1 : 0
[is_true, count]
//-----------------------------------------------------------------------------}
//Arrays
//-----------------------------------------------------------------------------{
var box[] imbboxarray = array.new_box()
var line[] bear_avg_line = array.new_line()
var float[] bear_boxlow = array.new_float()
//-----------------------------------------------------------------------------}
//Fair Value Gaps
//-----------------------------------------------------------------------------{
//Bullish
[bull_fvg, bull_fvg_count] = imbalance_detection(
show_fvg
, fvg_usewidth
, fvg_method
, fvg_gapwidth
, low
, high[2]
, low > high[2] and close[1] > high[2]
, high[2] - low)
bull_top = bull_fvg
bull_width = high[2] - low
bull_avg = math.avg(low, high[2])
//Bearish
[bear_fvg, bear_fvg_count] = imbalance_detection(
show_fvg
, fvg_usewidth
, fvg_method
, fvg_gapwidth
, low[2]
, high
, high < low[2] and close[1] < low[2]
, low[2] - high)
bear_top = bear_fvg
bear_width = low[2] - high
bear_avg = math.avg(low[2], high)
bearplot = high > low[1] ? 1 : 0
// Box & Line Calc {
f_choppedoffimb(imbboxarray, bear_avg_line) =>
if array.size(imbboxarray) > 0 and array.size(bear_avg_line) > 0
for i = array.size(imbboxarray) - 1 to 0 by 1
cutbox = array.get(imbboxarray, i)
cutline = array.get(bear_avg_line, i)
boxhighzone = box.get_top(cutbox)
boxlowzone = box.get_bottom(cutbox)
boxrightzone = box.get_right(cutbox)
bear_avg_right = line.get_x2(cutline)
if na or bar_index - 1 == boxrightzone and not (high > boxhighzone)
box.set_right(array.get(imbboxarray, i), bar_index)
line.set_x2(array.get(bear_avg_line, i), bar_index)
// }
var boxhighzone = 0.
var boxlowzone = 0.
boxhighzone := bear_top and bear_width > 0 ? low[2] : boxhighzone
boxlowzone := bear_top and bear_width > 0 ? high[0] : boxlowzone
bear_box_low = low[1]
bear_avg_right = bar_index
var belowBoxhighzone = false
if imbboxarray.size() > 0
belowBoxhighzone := (high > box.get_top(imbboxarray.last())) ? false : belowBoxhighzone
crossoverHighBoxLowZone = ta.crossover(high, boxlowzone) and belowBoxhighzone
if crossoverHighBoxLowZone
label.new(bar_index, bear_avg, "Bear", xloc = xloc.bar_index, color = color.red, style = label.style_arrowdown, textcolor = color.white, size = size.tiny)
// Box Draw {
if bear_top and bear_width > 0
imbbox = box.new(bar_index, boxhighzone, bar_index, boxlowzone, bear_fvg_css, border_style = line.style_dashed, bgcolor = color.new(bear_fvg_css, 80))
midline = line.new(bar_index, bear_avg, bear_avg_right, bear_avg, color = color.red, style = line.style_solid)
if array.size(imbboxarray) > adboxcount
box.delete(array.shift(imbboxarray))
line.delete(array.shift(bear_avg_line))
array.push(imbboxarray, imbbox)
array.push(bear_avg_line, midline)
array.push(bear_boxlow, low[1])
belowBoxhighzone := true
bgcolor(bear_top and bear_width > 0 ? color.rgb(255, 235, 59, 57) : na)
bgcolor(crossoverHighBoxLowZone ? color.rgb(213, 59, 255, 56) : na)
plotchar(bear_top, "bear_top", "", location = location.top)
plotchar(bear_width, "bear_width", "", location = location.top)
plotchar(boxlowzone, "boxlowzone", "", location = location.top)
plotchar(crossoverHighBoxLowZone, "crossoverHighBoxLowZone", "", location = location.top)
plotchar(array.size(label.all), "label.all.size()", "", location = location.top)
plotchar(array.size(box.all), "box.all.size()", "", location = location.top)
// if bar_index % 20 == 0
// label.new(bar_index, bear_avg, "Bear", xloc = xloc.bar_index, color = color.red, style = label.style_arrowdown, textcolor = color.white, size = size.tiny)
f_choppedoffimb(imbboxarray, bear_avg_line)
// }
</details>
# 答案2
**得分**: 0
以下是翻译好的部分：
"boxhighzone"的值在每根蜡烛上都会改变。
对于`ta.crossover`，它必须是一条固定线。
尝试这样做：
```pinescript
boxHigh = 0.0
boxHigh := bear_top and bear_width > 0 ? low[2] : nz(boxHigh[1])
if ta.crossover(high, boxHigh)
label.new(bar_index, bear_avg, "Bear", xloc = xloc.bar_index, color = color.red, style = label.style_arrowdown, textcolor = color.white, size = size.tiny)
英文:
The value of boxhighzone changes on each candle.
for ta.crossover, it must be a fixed line
Try this:
boxHigh = 0.0
boxHigh := bear_top and bear_width > 0 ? low[2] : nz(boxHigh[1])
if ta.crossover(high, boxHigh)
label.new(bar_index, bear_avg, "Bear", xloc = xloc.bar_index, color = color.red, style = label.style_arrowdown, textcolor = color.white, size = size.tiny)
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