Find the most recent bar with a certain quality

temtam

New member
I'm basically trying to ask ThinkScript "What is the most recent bar where THIS condition was true?"

Probably simple solution but I can't seem to figure it out.
 
Solution
I'm not super familiar with the getValue function. It is always returning 1 in this case, is it because of the first argument? In the examples I've seen, the first argument is usually something like "close" or "high", e.g a value for that bar.

Using @halcyonguy 's code above, the following has a 'cond' example to help identify the highestall barnumber and high based upon the 'cond'.

Ruby:
def bn = BarNumber();
def cond = if close crosses above Average(close, 9) then bn else cond[1];

# this finds the highest barnumber , from a set of bars that have cond
def last_cond_bn = HighestAll(cond);

# read data from that bar, for example the high
def last_cond_hi = GetValue(high, (bn - last_cond_bn));

AddLabel(1, last_cond_bn...
you can use highestall( ) to find the biggest barnumber for the bar that the condition is true. you can put an if-then in a highestall( )

Code:
def bn = barnumber();
def cond = .....
# this finds the biggest barnumber , from a set of bars that have cond == 1
def last_cond_bn = highestAll( if cond == 1 then bn else 0);
#
#  this is true on the last bar that cond is true
def islast_cond = (last_cond_bn == bn);
#
# read data from that bar
#  i think this works...
def data = getvalue(cond, (bn - last_cond_bn) );
#
 

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you can use highestall( ) to find the biggest barnumber for the bar that the condition is true. you can put an if-then in a highestall( )

Code:
def bn = barnumber();
def cond = .....
# this finds the biggest barnumber , from a set of bars that have cond == 1
def last_cond_bn = highestAll( if cond == 1 then bn else 0);
#
#  this is true on the last bar that cond is true
def islast_cond = (last_cond_bn == bn);
#
# read data from that bar
#  i think this works...
def data = getvalue(cond, (bn - last_cond_bn) );
#

I'm not super familiar with the getValue function. It is always returning 1 in this case, is it because of the first argument? In the examples I've seen, the first argument is usually something like "close" or "high", e.g a value for that bar.
 
I'm not super familiar with the getValue function. It is always returning 1 in this case, is it because of the first argument? In the examples I've seen, the first argument is usually something like "close" or "high", e.g a value for that bar.

Using @halcyonguy 's code above, the following has a 'cond' example to help identify the highestall barnumber and high based upon the 'cond'.

Ruby:
def bn = BarNumber();
def cond = if close crosses above Average(close, 9) then bn else cond[1];

# this finds the highest barnumber , from a set of bars that have cond
def last_cond_bn = HighestAll(cond);

# read data from that bar, for example the high
def last_cond_hi = GetValue(high, (bn - last_cond_bn));

AddLabel(1, last_cond_bn + " " + last_cond_hi, Color.WHITE);
#
 
Solution
I tired to decode the guidance above to solve my similar problem but failed. I use the code below to find a low (MACDValleyPrice ), but also need to find out which bar has that low.

Ruby:
def MACDValleyPrice = If(!IsNaN(MACDValley[0]), Lowest(low[-1], maxLookback4Price + 1), Double.NaN);

AddChartBubble(MACDValleyPrice && !lowerWindow, MACDValleyPrice, "bar " + barnumber() + "   low" + MACDValleyPrice, Color.PINK, no);

I tired to copy the code above. I made
Ruby:
 Lowest(low[-1], maxLookback4Price + 1)
my cond

Ruby:
# this finds the highest barnumber , from a set of bars that have cond
def last_cond_bn = HighestAll(cond);

but don't get a barnumber for the local low value

I get the correct low but don't know how to get the barnumber for the low. I could fold back until i find it, but that seems like a lot of work for something TOS already found
yXofCjC.png

example image
 
Last edited by a moderator:
@Cre8able The barnumber logic is in the post above yours. It appears as a label but the same logic can be used in your bubble.
As you have only shown snippets of your code and not a complete script, it is not possible for anyone to assist further.

Please give back to the community, by coming back and give us an update
 
Last edited:
thanks. I was looking at he wrong version above. One gives a bar number and the other gives a price. I was using the wrong one
thanks
Cre8able,

would it be possible to share the complete version of the code you got to work for finding bar that met a specific condition?

regards,
 

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