Percent change within a specific time period

[tqqq]

I was trying this script, but does not work, anyone can help to modidy ?

=============================================
input startDate = 20210719;
input endDate = 20210725;
input percentThreshold = 3.0;
def targetPeriod = DaysFromDate(startDate) >= 0 and DaysTillDate(endDate) >= 0;
rec trackHighest = if targetPeriod and !targetPeriod[1] then high else if targetPeriod and high > trackHighest[1] then high else trackHighest[1];
rec trackStartPrice = if targetPeriod and !targetPeriod[1] then close else trackStartPrice[1];
def percentChange = 100 * (trackHighest / trackStartPrice - 1);
plot scan = percentChange > percentThreshold;

============================(the source is https://www.hahn-tech.com/ans/percent-change-within-a-specific-time-period/)

 

[halcyonguy]

I was trying this script, but does not work, anyone can help to modidy ?

=============================================
input startDate = 20210719;
input endDate = 20210725;
input percentThreshold = 3.0;
def targetPeriod = DaysFromDate(startDate) >= 0 and DaysTillDate(endDate) >= 0;
rec trackHighest = if targetPeriod and !targetPeriod[1] then high else if targetPeriod and high > trackHighest[1] then high else trackHighest[1];
rec trackStartPrice = if targetPeriod and !targetPeriod[1] then close else trackStartPrice[1];
def percentChange = 100 * (trackHighest / trackStartPrice - 1);
plot scan = percentChange > percentThreshold;

============================(the source is https://www.hahn-tech.com/ans/percent-change-within-a-specific-time-period/)

edit your post
saying it doesn't work, is useless to others.

where are you trying to use this? scan , chart, column ?
what did you expect? what did you see?

the dates are 4 years ago, so if you dont change them, you wont see anything
this is a scan. it plots a 1 or 0 , yes or no, for a scan
the condition isn't going to happen alot on every stock. you have to TRY and change things.

i made it a lower chart study and set chart to hour
with GILD i found a signal on 7/25 and thereafter.
once this triggers, it stays triggered... so not the best formulas for a scan

so, to those reading, don't say 'it don't work'
if you want strangers to help you, take the time to explain the situation.


lower study to experiment with, with changed dates

declare lower;

input startDate = 20240719;
input endDate = 20240725;
input percentThreshold = 3.0;
def targetPeriod = DaysFromDate(startDate) >= 0 and DaysTillDate(endDate) >= 0;
rec trackHighest = if targetPeriod and !targetPeriod[1] then high else if targetPeriod and high > trackHighest[1] then high else trackHighest[1];
rec trackStartPrice = if targetPeriod and !targetPeriod[1] then close else trackStartPrice[1];
def percentChange = 100 * (trackHighest / trackStartPrice - 1);
plot scan = percentChange > percentThreshold;
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[tqqq]

Sorry I misunderstood the %change, it is today's %change. I try to use for scan, how to show the period change in scan result. Appreciate your help.