Easy Green Candle Color Watchlist

MBF

Active member
2019 Donor
Hi all,
i am frustrated with this script. What am I doing wrong here? I've changed GreenBar and Candle1 soo many times I've confused myself. Its so simple, why is it not working?

def GreenBar = (open > close);
def candle1 = If (yes, GreenBar(), Double.NaN);
plot candle1 = if (yes)is true then 1 else 0;

AssignBackgroundColor(if candle1 == 1 then Color.GREEN else Color.GRAY);
 
Solution
Hi all,
i am frustrated with this script. What am I doing wrong here? I've changed GreenBar and Candle1 soo many times I've confused myself. Its so simple, why is it not working?

def GreenBar = (open > close);
def candle1 = If (yes, GreenBar(), Double.NaN);
plot candle1 = if (yes)is true then 1 else 0;

AssignBackgroundColor(if candle1 == 1 then Color.GREEN else Color.GRAY);

short answer , everything
you are trying to define a boolean variable, greenbar, but then trying to define 2 more variables, with the same value, that aren't needed?


1. this is wrong
def GreenBar = (open > close);

should be
def GreenBar = (close > open);
this will be true or false, 1 or 0.


2. def candle1 = If (yes, GreenBar(), Double.NaN)...
Hi all,
i am frustrated with this script. What am I doing wrong here? I've changed GreenBar and Candle1 soo many times I've confused myself. Its so simple, why is it not working?

def GreenBar = (open > close);
def candle1 = If (yes, GreenBar(), Double.NaN);
plot candle1 = if (yes)is true then 1 else 0;

AssignBackgroundColor(if candle1 == 1 then Color.GREEN else Color.GRAY);

short answer , everything
you are trying to define a boolean variable, greenbar, but then trying to define 2 more variables, with the same value, that aren't needed?


1. this is wrong
def GreenBar = (open > close);

should be
def GreenBar = (close > open);
this will be true or false, 1 or 0.


2. def candle1 = If (yes, GreenBar(), Double.NaN);
greenbar() doesn't exist, there is no function with that name.
it is pointless to set the condition of a if-then to yes,
might as well write
def candle1 = greenbar;

maybe you meant this
def candle1 = if greenbar then 1 else double.nan;


3. plot candle1 = if (yes)is true then 1 else 0;
duplicate variable name. already used candle1 in previous code line.
it is pointless to set the condition to yes,
why are you plotting a boolean value? just to show something in the column

correct line
plot candle2 = if candle1 then 1 else 0;


4. AssignBackgroundColor(if candle1 == 1 then Color.GREEN else Color.GRAY);
this works. although the == 1 isn't really nessesary

------------------------

candle1 and candle2 are basically the same as greenbar, so might as well remove them and just use greenbar.

i think it is better to stick with 1 and 0 during signal formulas, and wait to use double.nan in plot formulas.
sometimes those double.nan values can cascade through the formulas and cause unwanted results.

this is how i would write it

Code:
# column study
plot GreenBar = (close > open);
AssignBackgroundColor(if greenbar then Color.GREEN else Color.GRAY);

----------------------------------

if i wanted to look for green and red bars,....

Code:
def GreenBar = (close > open);
def redBar = (close < open);
AssignBackgroundColor(if greenbar then Color.GREEN else if redbar then color.red else Color.GRAY);
 
Last edited:
Solution

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short answer , everything
you are trying to define a boolean variable, greenbar, but then trying to define 2 more variables, with the same value, that aren't needed?


1. this is wrong
def GreenBar = (open > close);

should be
def GreenBar = (close > open);
this will be true or false, 1 or 0.


2. def candle1 = If (yes, GreenBar(), Double.NaN);
greenbar() doesn't exist, there is no function with that name.
it is pointless to set the condition of a if-then to yes,
might as well write
def candle1 = greenbar;

maybe you meant this
def candle1 = if greenbar then 1 else double.nan;


3. plot candle1 = if (yes)is true then 1 else 0;
duplicate variable name. already used candle1 in previous code line.
it is pointless to set the condition to yes,
why are you plotting a boolean value? just to show something in the column

correct line
plot candle2 = if candle1 then 1 else 0;


4. AssignBackgroundColor(if candle1 == 1 then Color.GREEN else Color.GRAY);
this works. although the == 1 isn't really nessesary

------------------------

candle1 and candle2 are basically the same as greenbar, so might as well remove them and just use greenbar.

i think it is better to stick with 1 and 0 during signal formulas, and wait to use double.nan in plot formulas.
sometimes those double.nan values can cascade through the formulas and cause unwanted results.

this is how i would write it

Code:
# column study
plot GreenBar = (close > open);
AssignBackgroundColor(if greenbar then Color.GREEN else Color.GRAY);

----------------------------------

if i wanted to look for green and red bars,....

Code:
def GreenBar = (close > open);
def redBar = (close < open);
AssignBackgroundColor(if greenbar then Color.GREEN else if redbar then color.red else Color.GRAY);
Interesting. The GreenBar I was using is an easy bar I created in the candlestick wizard, so I thought I could use that one. Ah yes, I see what I did wrong with the open and close.
So the Plot cannot be the same as the definition? Can Plot be anything I want to name it?
I cannot code. I am trying but I basically come here, look for similar codes and try to piece them together to get what I need. Most of the time this works. This was why I iwas so frustrated with this easy one. Thank you so much @halcyonguy! Now I know what happened and can use this correctly in the future.
 
Interesting. The GreenBar I was using is an easy bar I created in the candlestick wizard, so I thought I could use that one. Ah yes, I see what I did wrong with the open and close.
So the Plot cannot be the same as the definition? Can Plot be anything I want to name it?
I cannot code. I am trying but I basically come here, look for similar codes and try to piece them together to get what I need. Most of the time this works. This was why I iwas so frustrated with this easy one. Thank you so much @halcyonguy! Now I know what happened and can use this correctly in the future.

def and plot assign a number to a variable.
all variables have to be unique.
a variable can be named almost anything, with letters and numbers and underline.
has to start with a letter.
some people use multiple , capitalized words i like to separate words with _ , def gap_change_percent = ...

unfortunetely the wizard can create convoluted code. keep reading through posts to see how others do things.
 
def and plot assign a number to a variable.
all variables have to be unique.
a variable can be named almost anything, with letters and numbers and underline.
has to start with a letter.
some people use multiple , capitalized words i like to separate words with _ , def gap_change_percent = ...

unfortunetely the wizard can create convoluted code. keep reading through posts to see how others do things.
@halcyonguy why thank you very much for the explanation. I was in the Discord Stat room and I went to the indicator rabbit hole section and I saw a name. Thought it looked familiar. Lo, it was you!
 
@halcyonguy
So about this easy watchlist Day BO column. I am trying to only show it as green after 8AM in the morning.
Right now it is green from Friday's BO. I am more than confused about this function and have looked in here for a script that may well help but found none. Can anyone help with some (just a little)elaboration on this function?
Here is the code.
def BO = close crosses above high[1];
plot HBO = if close crosses above high[1] then 1 else 0;
AssignBackgroundColor (if HBO then color.green else color.black);
 

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