fxcodebase-backup
Bigger timeframe RSI
Source: https://fxcodebase.com/code/viewtopic.php?f=17&t=942
Forum: 17 · Topic 942 · 9 post(s)
Bigger timeframe RSI
Alexander.Gettinger · Mon May 03, 2010 11:25 pm
This indicator applies the RSI on the data of the same instrument but in bigger timeframe (for example week candles on day chart).
The indicator was revised and updated
Re: Bigger timeframe RSI
simniskis · Tue Oct 19, 2010 5:19 pm
Thanks Alexander, very usefull for me. Do you think it is possible to make the same indicator with Williams%R (instead RSI)? Thanks a lot. Sergio
Re: Bigger timeframe RSI
Alexander.Gettinger · Wed Oct 20, 2010 2:36 am
OK. I shall do this.
Re: Bigger timeframe RSI
Alexander.Gettinger · Thu Oct 21, 2010 3:57 am
Bigger timeframe Williams Percent Range (WPR).
function Init()
indicator:name("Bigger timeframe WPR");
indicator:description("");
indicator:requiredSource(core.Bar);
indicator:type(core.Oscillator);
indicator.parameters:addGroup("Calculation");
indicator.parameters:addString("BS", "Time frame to calculate WPR", "", "D1");
indicator.parameters:setFlag("BS", core.FLAG_PERIODS);
indicator.parameters:addInteger("N", "Number of periods for WPR", "", 14, 1, 200);
indicator.parameters:addGroup("Display");
indicator.parameters:addColor("WPRclr", "Color of WPR", "Color of WPR", core.rgb(0, 255, 0));
end
local source; -- the source
local bf_data = nil; -- the high/low data
local N;
local BS;
local bf_length; -- length of the bigger frame in seconds
local dates; -- candle dates
local host;
local WPRout;
local day_offset;
local week_offset;
local extent;
local WPR;
function Prepare()
source = instance.source;
host = core.host;
day_offset = host:execute("getTradingDayOffset");
week_offset = host:execute("getTradingWeekOffset");
BS = instance.parameters.BS;
N = instance.parameters.N;
extent = N*2;
local s, e, s1, e1;
s, e = core.getcandle(source:barSize(), core.now(), 0, 0);
s1, e1 = core.getcandle(BS, core.now(), 0, 0);
assert ((e - s) <= (e1 - s1), "The chosen time frame must be bigger than the chart time frame!");
bf_length = math.floor((e1 - s1) * 86400 + 0.5);
local name = profile:id() .. "(" .. source:name() .. "," .. BS .. "," .. N .. ")";
instance:name(name);
WPRout = instance:addStream("WPRout", core.Line, name .. ".WPR", "WPR", instance.parameters.WPRclr, 0);
WPRout:addLevel(-20);
WPRout:addLevel(-80);
end
local loading = false;
local loadingFrom, loadingTo;
local pday = nil;
-- 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 bf_candle;
bf_candle = core.getcandle(BS, source:date(period), day_offset, week_offset);
-- if data for the specific candle are still loading
-- then do nothing
if loading and bf_candle >= loadingFrom and (loadingTo == 0 or bf_candle <= loadingTo) then
return ;
end
-- if the period is before the source start
-- the do nothing
if period < source:first() then
return ;
end
-- if data is not loaded yet at all
-- load the data
if bf_data == nil then
-- there is no data at all, load initial data
local to, t;
local from;
if (source:isAlive()) then
-- if the source is subscribed for updates
-- then subscribe the current collection as well
to = 0;
else
-- else load up to the last currently available date
t, to = core.getcandle(BS, source:date(period), day_offset, week_offset);
end
from = core.getcandle(BS, source:date(source:first()), day_offset, week_offset);
WPRout:setBookmark(1, period);
-- shift so the bigger frame data is able to provide us with the stoch data at the first period
from = math.floor(from * 86400 - (bf_length * extent) + 0.5) / 86400;
local nontrading, nontradingend;
nontrading, nontradingend = core.isnontrading(from, day_offset);
if nontrading then
-- if it is non-trading, shift for two days to skip the non-trading periods
from = math.floor((from - 2) * 86400 - (bf_length * extent) + 0.5) / 86400;
end
loading = true;
loadingFrom = from;
loadingTo = to;
bf_data = host:execute("getHistory", 1, source:instrument(), BS, loadingFrom, to, source:isBid());
WPR = core.indicators:create("WILLIAMSPERCENTRANGE", bf_data, N);
return ;
end
-- check whether the requested candle is before
-- the reference collection start
if (bf_candle < bf_data:date(0)) then
WPRout:setBookmark(1, period);
if loading then
return ;
end
-- shift so the bigger frame data is able to provide us with the stoch data at the first period
from = math.floor(bf_candle * 86400 - (bf_length * extent) + 0.5) / 86400;
local nontrading, nontradingend;
nontrading, nontradingend = core.isnontrading(from, day_offset);
if nontrading then
-- if it is non-trading, shift for two days to skip the non-trading periods
from = math.floor((from - 2) * 86400 - (bf_length * extent) + 0.5) / 86400;
end
loading = true;
loadingFrom = from;
loadingTo = bf_data:date(0);
host:execute("extendHistory", 1, bf_data, loadingFrom, loadingTo);
return ;
end
-- check whether the requested candle is after
-- the reference collection end
if (not(source:isAlive()) and bf_candle > bf_data:date(bf_data:size() - 1)) then
WPRout:setBookmark(1, period);
if loading then
return ;
end
loading = true;
loadingFrom = bf_data:date(bf_data:size() - 1);
loadingTo = bf_candle;
host:execute("extendHistory", 1, bf_data, loadingFrom, loadingTo);
return ;
end
WPR:update(mode);
local p;
p = findDateFast(bf_data, bf_candle, true);
if p == -1 then
return ;
end
if WPR:getStream(0):hasData(p) then
WPRout[period] = WPR:getStream(0)[p];
end
end
-- the function is called when the async operation is finished
function AsyncOperationFinished(cookie)
local period;
pday = nil;
period = WPRout:getBookmark(1);
if (period < 0) then
period = 0;
end
loading = false;
instance:updateFrom(period);
end
function findDateFast(stream, date, precise)
local datesec = nil;
local periodsec = nil;
local min, max, mid;
datesec = math.floor(date * 86400 + 0.5)
min = 0;
max = stream:size() - 1;
while true do
mid = math.floor((min + max) / 2);
periodsec = math.floor(stream:date(mid) * 86400 + 0.5);
if datesec == periodsec then
return mid;
elseif datesec > periodsec then
min = mid + 1;
else
max = mid - 1;
end
if min > max then
if precise then
return -1;
else
return min - 1;
end
end
end
end
For this indicator must be installed Williams Percent Range (WPR) indicator (viewtopic.php?f=17&t=898&p=1640).
Re: Bigger timeframe RSI
simniskis · Thu Oct 21, 2010 7:41 am
You answer my question very fast !!! Thank you very much.
Re: Bigger timeframe RSI
Apprentice · Wed Dec 01, 2010 1:50 pm
BF RSI Update. Bug Fix.
Re: Bigger timeframe RSI
Pride80 · Thu Dec 19, 2013 2:55 pm
Thank you Alexander, great job.
Could i have a version of this indicator that allows me to zoom the RSI so that i have a range between 30 to 70 (for example) displayed? I dislike the default range from 0 to 100, cause i don’t see properly the zone that i care more about, the 40-60 one.
Thank you very much
Re: Bigger timeframe RSI
Apprentice · Sat Dec 21, 2013 7:28 am
Try Updated Version.
FYI. We have ceased to provide support for Bigger time frame Indicators. As TS now supports this functionality.
Re: Bigger timeframe RSI
Apprentice · Sun Aug 06, 2017 7:19 am
The indicator was revised and updated.