Fold exceed historical data

[Ivan Felipe]

Hi, can anybody help me with this ?

In the code:

fold i = 0 to 200 with res1 = 0 while res1 <= high do ...whatever;

this doesn´t work - and stop execution of the script - when there is not enouth historical data (less than 200 bars in this case ) and it shows an error messsage like this:
" Study requires at least 265 bars to be computed but only 155 are available..."

Any idea how to solve this trouble or, at least, how to find the amount of historical available data (155 in this case) to handle a solution-

Thanks a lot... (Please excuse my english)

 

[rad14733]

@Ivan Felipe You failed to mention the timeframe of your Chart, in Days and Minutes for example, but this could be the issue... You need to have enough candles/bars visible on your Chart in order for the Study to parse them... Increase the amount of historical lookback and you should have better results...

 

[halcyonguy]

Hi, can anybody help me with this ?

In the code:

fold i = 0 to 200 with res1 = 0 while res1 <= high do ...whatever;

this doesn´t work - and stop execution of the script - when there is not enouth historical data (less than 200 bars in this case ) and it shows an error messsage like this:
" Study requires at least 265 bars to be computed but only 155 are available..."

Any idea how to solve this trouble or, at least, how to find the amount of historical available data (155 in this case) to handle a solution-

Thanks a lot... (Please excuse my english)

next time provide a real study , not a partial code line.
we have no idea what you really tried.

i'm guessing you should be using getvalue(high,i) , not high, otherwise , the fold is useless.
i threw something together and it works... so not sure what you were doing?

if there is no data before the first bar, then the plot starts with 1.
if there is data, then it starts with a higher number.

i tried with and without this,
and !isnan(getvalue(close,i))
and it was the same,
so it appears , the fold stops if there is no data to read.


go here and get a few symbols for testing
https://www.iposcoop.com/last-100-ipos/

test symbol - CRWV hour

#https://www.iposcoop.com/last-100-ipos/

declare lower;

def na = double.nan;
def bn = barnumber();

input qty = 200;
def a = fold i = 0 to qty
 with k = 0
 while k <= getvalue(high,i)
# while k <= getvalue(high,i) and !isnan(getvalue(close,i))
 do k+1;


#plot z0 = 0;
plot z = if !isnan(close) then a else na;