How to detect a certain percentage of change from the high/low of a study?

[Mr_Wheeler]

I was wondering if you could detect percentage change from a high/low point of a study's trend? Let's say there's a 10 percent drop from the top or a 10 percent bounce from a low. It would be nice to send an alert. In fact I found a Jim Cramer Sound board Sfx collection.

 

[halcyonguy]

I was wondering if you could detect percentage change from a high/low point of a study's trend? Let's say there's a 10 percent drop from the top or a 10 percent bounce from a low. It would be nice to send an alert. In fact I found a Jim Cramer Sound board Sfx collection.

the question is too vague.
what defines a trend?
how often to look for peaks and valleys(pivots)? a day, week, the whole chart?

once a peak is found, the high of that candle could be saved , until the next peak comes along and that new peak high is saved.

here is somethung to compare to peaks
untested

def peak = ... true/false formula

def peakhigh = if peak then high else peakhigh[1];
def diff = close - peakhigh;
def diffper =  round(100*diff/peakhigh,1);
input per = 10;
def dostuff = absvalue(diffper) > per;
addlabel(dostuff, "big move", color.cyan);
#

 

[Musk335im3]

the question is too vague.
what defines a trend?
how often to look for peaks and valleys(pivots)? a day, week, the whole chart?

once a peak is found, the high of that candle could be saved , until the next peak comes along and that new peak high is saved.

here is somethung to compare to peaks
untested

def peak = ... true/false formula

def peakhigh = if peak then high else peakhigh[1];
def diff = close - peakhigh;
def diffper =  round(100*diff/peakhigh,1);
input per = 10;
def dostuff = absvalue(diffper) > per;
addlabel(dostuff, "big move", color.cyan);
#

Hi @halcyonguy

I was trying to make a label of similar sort when I saw this post. Tried it but did not work.

Basically my aim was:
1. Daily aggregation of current price which is down from a previous peak
2. Find the highest peak from the past 50 days.
3. Calculate the percentage difference between the two; label.

Tried the code above, but it seems the 1st/2nd lines are broken. Tried fixing them but failed.

Thanks in advanced.