Source: https://fxcodebase.com/code/viewtopic.php?f=17&t=20388
Forum: 17 · Topic 20388 · 15 post(s)
Nikolay.Gekht · Tue Jun 19, 2012 3:24 pm
The indicator is further development of the High/Low Band indicator.
The indicator can show either current or previous price range of the chosen timeframe on the chart.
The new version allows you manage the line parameters (width, style) and put time frame and range width (in pips) labels above or below the range.

Download:
Source:
function Init()
indicator:name("High/Low Bands (Advanced)");
indicator:description("");
indicator:requiredSource(core.Bar);
indicator:type(core.Indicator);
indicator.parameters:addGroup("Calculation");
indicator.parameters:addString("BS", "Bar Size to display High/Low", "", "D1");
indicator.parameters:addBoolean("YTD", "Show yesterday band", "Choose yes to show yesterday band and no to show today band", false);
indicator.parameters:setFlag("BS", core.FLAG_PERIODS);
indicator.parameters:addGroup("Band");
indicator.parameters:addBoolean("Extend", "Extend the band till the end of the bar", "", false);
indicator.parameters:addColor("clrB", "High/Low Band Color", "", core.rgb(192, 192, 192));
indicator.parameters:addInteger("Width", "Line Width", "", 1, 1, 5);
indicator.parameters:addInteger("Style", "Line Style", "", core.LINE_SOLID);
indicator.parameters:setFlag("Style", core.FLAG_LEVEL_STYLE);
indicator.parameters:addInteger("A", "High/Low Band transparency (%)", "", 95, 0, 100);
indicator.parameters:addGroup("Labels");
indicator.parameters:addBoolean("ShowLabelPip", "Show Size Labels", "", false);
indicator.parameters:addBoolean("ShowLabelFrame", "Show Frame Labels", "", false);
indicator.parameters:addColor("LabelC", "Label color", "", core.COLOR_LABEL);
indicator.parameters:addInteger("LabelI", "Label Size", "", 8, 6, 24);
indicator.parameters:addInteger("LabelLoc", "Label Location", "", 1);
indicator.parameters:addIntegerAlternative("LabelLoc", "Above", "", 1);
indicator.parameters:addIntegerAlternative("LabelLoc", "Below", "", 2);
end
local source; -- the source
local hilo_data = nil; -- the high/low data
local H; -- high stream
local L; -- low stream
local BS;
local BSLen;
local dates; -- candle dates
local CLen;
local host;
local offset;
local weekoffset;
local candles; -- stream of the candle's dates
local YTD;
local Extend;
local maxBarsPerBS;
local ShowLabelPip;
local ShowLabelFrame;
local LabelLoc;
local Labels;
local pipSize;
local formatPips;
function Prepare()
source = instance.source;
host = core.host;
host = core.host;
offset = host:execute("getTradingDayOffset");
weekoffset = host:execute("getTradingWeekOffset");
BS = instance.parameters.BS;
YTD = instance.parameters.YTD;
Extend = instance.parameters.Extend;
ShowLabelPip = instance.parameters.ShowLabelPip;
ShowLabelFrame = instance.parameters.ShowLabelFrame;
LabelLoc = instance.parameters.LabelLoc;
local YTDn;
if YTD then
YTDn = "prev";
else
YTDn = "curr";
end
local l1, l2;
local s, e;
s, e = core.getcandle(source:barSize(), core.now(), 0);
l1 = e - s;
s, e = core.getcandle(BS, core.now(), 0);
l2 = e - s;
CLen = l1;
BSLen = l2; -- remember length of the period
assert(l1 <= l2, "The chosen time frame must be the same of longer than the chart time frame");
if Extend then
maxBarsPerBS = math.floor(l2 / l1 + 0.5);
else
maxBarsPerBS = 0;
end
local name = profile:id() .. "(" .. source:name() .. "," .. BS .. "," .. YTDn .. ")";
instance:name(name);
H = instance:addStream("H", core.Line, name .. ".H", "H", instance.parameters.clrB, 0, maxBarsPerBS);
H:setStyle(instance.parameters.Style);
H:setWidth(instance.parameters.Width);
L = instance:addStream("L", core.Line, name .. ".L", "L", instance.parameters.clrB, 0, maxBarsPerBS);
L:setStyle(instance.parameters.Style);
L:setWidth(instance.parameters.Width);
instance:createChannelGroup("HL", "HL", H, L, instance.parameters.clrB, 100 - instance.parameters.A, true);
candles = instance:addInternalStream(0, 0);
hilo_data = core.host:execute("getSyncHistory", source:instrument(), BS, source:isBid(), 10, 100, 101);
if ShowLabelPip or ShowLabelFrame then
pipSize = source:pipSize();
formatPips = "%.1f pips";
local align;
if LabelLoc == 1 then
align = core.V_Top;
else
align = core.V_Bottom;
end
Labels = instance:createTextOutput("Labels", "Lbl", "Arial", instance.parameters.LabelI, core.H_Right, align, instance.parameters.LabelC, 0);
end
end
local loading = false;
-- the function which is called to calculate the period
function Update(period, mode)
-- get date and time of the hi/lo candle in the reference data
local hilo_candle;
hilo_candle = core.getcandle(BS, source:date(period), offset, weekoffset);
-- if data for the specific candle are still loading
-- then do nothing
if loading or hilo_data:size() == 0 then
return ;
end
-- if the period is before the source start
-- the do nothing
if period < source:first() then
return ;
end
local hilo_i = core.findDate(hilo_data, hilo_candle, false);
-- candle is not found
if hilo_i < 0 then
return ;
end
if YTD then
if hilo_i == 0 then
return;
end
hilo_i = hilo_i - 1;
end
H[period] = hilo_data.high[hilo_i];
L[period] = hilo_data.low[hilo_i];
candles[period] = hilo_candle;
if period > 0 and candles[period - 1] ~= candles[period] then
H:setBreak(period, true);
L:setBreak(period, true);
else
H:setBreak(period, false);
L:setBreak(period, false);
end
if source:isAlive() and period > source:first() and period == source:size() - 1 then
-- update all today's data in case today's high low is changed
if candles:hasData(period - 1) and candles[period - 1] == hilo_candle and
((H[period - 1] ~= H[period]) or (L[period - 1] ~= L[period])) then
local i = period - 1;
local h = hilo_data.high[hilo_i];
local l = hilo_data.low[hilo_i];
while i > 0 and candles:hasData(i) and candles[i] == hilo_candle do
H[i] = h;
L[i] = l;
i = i - 1
end
if ShowLabelPip or ShowLabelFrame then
local text;
text = "";
if ShowLabelFrame then
text = text .. BS;
end
if ShowLabelPip then
if ShowLabelFrame then
text = text .. ",";
end
text = text .. string.format(formatPips, (H[i + 1] - L[i + 1]) / pipSize);
end
local loc;
if LabelLoc == 1 then
loc = H[i + 1];
else
loc = L[i + 1];
end
Labels:set(period, loc, text);
end
end
end
if Extend and period == source:size() - 1 then
local i = period + 1;
local b = source:date(period) + CLen;
local h = hilo_data.high[hilo_i];
local l = hilo_data.low[hilo_i];
while i < H:size() and b < hilo_candle + BSLen do
if H:hasData(i) and H[i] == h and L[i] == l then
break;
end
H[i] = h;
L[i] = l;
i = i + 1;
b = b + CLen;
end
end
if (ShowLabelPip or ShowLabelFrame) and (period == 0 or candles[period - 1] ~= hilo_candle) then
local text;
text = "";
if ShowLabelFrame then
text = text .. BS;
end
if ShowLabelPip then
if ShowLabelFrame then
text = text .. ",";
end
text = text .. string.format(formatPips, (H[period] - L[period]) / pipSize);
end
local loc;
if LabelLoc == 1 then
loc = H[period];
else
loc = L[period];
end
Labels:set(period, loc, text);
end
end
-- the function is called when the async operation is finished
function AsyncOperationFinished(cookie)
if cookie == 100 then
loading = false;
instance:updateFrom(0);
elseif cookie == 101 then
loading = true;
end
end
The indicator was revised and updated
nazaar · Thu Aug 23, 2012 10:49 pm
Thanks very much for this indicator. It is really helpful and informative as it set horizontal support and resistance lines automatically for your chosen time frame. The only concern is I cannot use it on my live account as it is the beta version. The beta version is not available for live accounts.
Thanks.
sunshine · Fri Aug 24, 2012 9:53 am
Unfortunately, there is no schedule for the official release yet. Please watch for the updated on the site.
Apprentice · Tue Oct 15, 2013 2:04 am
Bump Up
syncoopate · Tue Jan 28, 2014 1:55 pm
hi, I would like to know if you can enter option flag bid/ask thank you….
xpertizetrading · Wed Jan 29, 2014 10:15 am
Is it possible to code a strategy for this indicator? Much needed.
Entry Order: Break of previous hl1. Stop Loss: Previous hl1 high/low (for short/long trades) Expiratory: Present hl1 close.
Thanks
Apprentice · Thu Jan 30, 2014 4:20 am
Your request is added to the development list.
moomoofx · Fri Apr 11, 2014 6:46 pm
Hi,
The strategy requested has been implemented here: viewtopic.php?f=31&t=60526
Cheers, MooMooFX
fxFox.mb · Tue Apr 15, 2014 2:34 am
Nikolay.Gekht wrote: The indicator is further development of the High/Low Band indicator. …
Hi Nikolay,
I just came across to this HL1 indicator - thanks a lot for this - very useful. Is there a possibility to add a parameter that only the last range / band is displayed?
That would give us the possibility to show i.e.
Kindly Regards fxfox
Apprentice · Tue Apr 15, 2014 11:17 am
Modification could prove to be greater challenge, If I compare it with a new indicator development.
An alternative could be the Higher Time Frame Support Resistance. viewtopic.php?f=17&t=39802&p=65322&hilit=High%2FLow#p65322
fxFox.mb · Wed Apr 16, 2014 5:41 am
Apprentice wrote: … An alternative could be the Higher Time Frame Support Resistance. …
Thank you very much Apprentice,
that’s exaclty what I’ve looked for.
Regards fxFox
Gerard MANVUSSA · Thu May 21, 2015 2:04 am
Hi all,
Thank you for this very interesting indicator.
Could someone be kind enough to do the necessary to enable this program to extend the lines on right to infinity ? (to allow to see the historical High/Low Range since their determination)
Thanks a lot in advance for your action
Have a nice end of week
Apprentice · Fri May 22, 2015 4:00 am
Your request is added to the development list.
Gerard MANVUSSA · Mon Jun 01, 2015 11:51 am
Very good new. I’m looking forward to be able to installing it on my trading platform. Is it possible to have an estimated date of availability ? Thanks a lot
Apprentice · Tue Jul 04, 2017 9:27 am
The indicator was revised and updated.