Scan: Breakout of previous day high

[sbtosrc]

Hi,

I'm writing a scan script to identify stocks from WL that brokeout previous day high, but the script doesn't execute showing message: "Secondary period not allowed: Day."

input price = close;

# Previous day's high
def previousHigh = high(period = AggregationPeriod.DAY)[1];

# Condition: Current price is above previous day's high
plot scan = price > previousHigh;


i tried changing period to DAILY or DAY but no luck

 

[halcyonguy]

Hi,

I'm writing a scan script to identify stocks from WL that brokeout previous day high, but the script doesn't execute showing message: "Secondary period not allowed: Day."

input price = close;

# Previous day's high
def previousHigh = high(period = AggregationPeriod.DAY)[1];

# Condition: Current price is above previous day's high
plot scan = price > previousHigh;


i tried changing period to DAILY or DAY but no luck

this is a watchlist study

if data from 1 time period is to be compared to a different period ( 2 different days) , then 2nd aggregation isn't needed.

this reads the high and low from yesterday and compares those levels to the current price.
if price is > prev hi , then green
if price is < prev lo , then red

# zprevdhilo
#higher_prev_day

#https://usethinkscript.com/threads/scan-breakout-of-previous-day-high.18071/
# column
def na = double.nan;
def bn = barnumber();
def big = 99999;

def d = getday();
def isprevday = (d + 1) == getlastday();

def prevdayhi = if bn == 1 then 0
 else if isprevday then max(prevdayhi[1], high)
 else prevdayhi[1];

def prevdaylo = if bn == 1 then big
 else if isprevday then min(prevdaylo[1], low)
 else prevdaylo[1];

plot z1 = if d != getlastday() then na
 else if high > prevdayhi then 1
 else if low < prevdaylo then -1
 else 0;

AssignBackgroundColor(if high > prevdayhi then color.green else if low < prevdaylo then color.red else color.gray);
#

watchlist time was 5 minutes, after hours off

 

[Trader Sam]

this is a watchlist study

if data from 1 time period is to be compared to a different period ( 2 different days) , then 2nd aggregation isn't needed.

this reads the high and low from yesterday and compares those levels to the current price.
if price is > prev hi , then green
if price is < prev lo , then red

# zprevdhilo
#higher_prev_day

#https://usethinkscript.com/threads/scan-breakout-of-previous-day-high.18071/
# column
def na = double.nan;
def bn = barnumber();
def big = 99999;

def d = getday();
def isprevday = (d + 1) == getlastday();

def prevdayhi = if bn == 1 then 0
 else if isprevday then max(prevdayhi[1], high)
 else prevdayhi[1];

def prevdaylo = if bn == 1 then big
 else if isprevday then min(prevdaylo[1], low)
 else prevdaylo[1];

plot z1 = if d != getlastday() then na
 else if high > prevdayhi then 1
 else if low < prevdaylo then -1
 else 0;

AssignBackgroundColor(if high > prevdayhi then color.green else if low < prevdaylo then color.red else color.gray);
#

watchlist time was 5 minutes, after hours off

There might be a chance that the statement "def isprevday = (d + 1) == getlastday();" may not work as intended if it is a weekend or holiday.