I'm trying to build a ema script in trading view but struggling with how to finish up the code. I'm essentially trying to code this, but not sure how to nest this in an if statement:
(tl <= em1 and tc > ema2) and ((tc<ema3) or (tc<em4) or (tc<em5))
How can I put a nested if statement for this? Goal is to use the if statement to tie in the rest of the code
// EMA trap
m1=8
m2=3.1
m3=3.2
m4=3.4
tl=low
tc=close
em1 = ema(tl,m1)
em2 = ema(tc,m1)
em3 = ema(tc,m2)
em4 = ema(tc,m3)
em5 = ema(tc,m4)```
You can't use float periods for ema(), so replaced them with integers.
This plots an arrow on the chart when your condition is true:
//#version=4
study("", "", true)
// EMA trap
m1=8
m2=3
m3=4
m4=5
tl=low
tc=close
em1 = ema(tl,m1)
em2 = ema(tc,m1)
em3 = ema(tc,m2)
em4 = ema(tc,m3)
em5 = ema(tc,m4)
cond = tl <= em1 and tc > em2 and (tc < em3 or tc < em4 or tc < em5)
plotchar(cond, "cond", "▼", location.top)
Related
I have the data below
create table #data (Post_Code varchar(10), Internal_Code varchar(10))
insert into #data values
('AB10','hb3'),('AB10','hb25'),('AB12','dd1'),('AB15','hb6'),('AB16','aa4'),('AB16','hb7'),
('AB16','aa2'),('AB16','ab9'),('AB18','rr6'),('AB18','rr9'),('AB18','hb10'),('AB20','rr15'),
('AB20','td2'),('AB21','hb8'),('AB21','cc4'),('AB21','cc4'),('AB24','td5'),('AB9','yy3'),
('RM2','CC1'),('RM6','hb6'),('RM7','cc2'),('SA24','rr1'),('SA24','hb5'),('SA24','rr2'),
('SA24','cc34'),('SE15','rr9'),('SE15','rr5'),('SE25','rr10'),('SE25','hb11'),('SE25','rr8'),
('SE25','rr1'),('LA15','rr2')
select * from #data
drop table #data
What I want to achieve is if the same post code area have “hb” or “rr” in the same post code I want to return 1 else 0
The “hb” or “rr” internal_code must be in the same post_code if they in different post code. It should be 0
I wrote this DAX
Result = IF(left(Data[Internal_Code],2)="hb" || left(Data[Internal_Code],2)="rr",1,0)
it is not returning the correct result
current output
expected output
I think your expected result is incorrect as SA24 should also be 1. You should definitely do a calculation like this in PQ but if you need to do it in DAX in a calculated column, then use the following code which works.
Result =
VAR post_code = Data[Post_code]
RETURN
VAR hb = CALCULATE (COUNTROWS(Data),'Data'[Post_code] = post_code && left(Data[Internal_Code],2) = "hb" )
VAR rr = CALCULATE (COUNTROWS(Data),'Data'[Post_code] = post_code && left(Data[Internal_Code],2) = "rr" )
RETURN IF(hb>0 && rr > 0,1)
I do not know how to code and I am trying to learn Pinescript but it really makes no sense to me so i googled how to set a backtest range and used some code someone else wrote but it doesn't seem to be actually testing the area i would like, it tests the entirety of the chart. I'd like to test from 1/1/2018 to present. I'm trying to do this for multiple strategies so I can better tailor them to the current market. here is wat I have for one of them and if you are willing to help with the others I would very much appreciate it!!! feel free to DM me.
//#version=5
strategy("Bollinger Bands BACKTEST", overlay=true)
source = close
length = input.int(20, minval=1)
mult = input.float(2.0, minval=0.001, maxval=50)
basis = ta.sma(source, length)
dev = mult * ta.stdev(source, length)
upper = basis + dev
lower = basis - dev
buyEntry = ta.crossover(source, lower)
sellEntry = ta.crossunder(source, upper)
if (ta.crossover(source, lower))
strategy.entry("BBandLE", strategy.long, stop=lower, oca_name="BollingerBands", oca_type=strategy.oca.cancel, comment="BBandLE")
else
strategy.cancel(id="BBandLE")
if (ta.crossunder(source, upper))
strategy.entry("BBandSE", strategy.short, stop=upper, oca_name="BollingerBands", oca_type=strategy.oca.cancel, comment="BBandSE")
else
strategy.cancel(id="BBandSE")
//plot(strategy.equity, title="equity", color=color.red, linewidth=2, style=plot.style_areabr)
// === INPUT BACKTEST RANGE ===
fromMonth = input.int(defval = 1, title = "From Month", minval = 1, maxval = 12)
fromDay = input.int(defval = 1, title = "From Day", minval = 1, maxval = 31)
fromYear = input.int(defval = 2018, title = "From Year", minval = 1970)
I would like to do a nested if statement within powerbi, I need to have multiple if statements in one column with some returning - value depending on the if statement.
I have tried to below however theyre all coming back as false.
Calculated value = if('TableName'[ColumnName1] = "exp1" && 'TableName'[columnName2] = "exp2", 'TableName'[value]|| if('TableName'[ColumnName1] = "exp1" && 'TableName'[ColumnName2] = "exp3", - 'TableName'[value],""))
In the first if you don't have any output to the false result. I Add an extra empty value in your calculated value as below only to exemplify what you need to add:
Calculated value = if('TableName'[ColumnName1] = "exp1" && 'TableName'[columnName2] = "exp2", 'TableName'[value]|| if('TableName'[ColumnName1] = "exp1" && 'TableName'[ColumnName2] = "exp3", - 'TableName'[value],""),"")
Check the example and tell something about this, please
I have the following problem:
I want to use a while not loop under a true-false condition. I define the condition and tell the loop what to do while the condition is True and False respectively. However, in the line 'converge = False, j = 1' (please see code below), I get the message 'int' object is not iterable. Can you help please? I don't know what the problem here is as I am fairly new to python.
Condition that the model run should stop at steady state (when the slope does not change anymore)
Final_pools_2 = [pools_2[-1,:]]
converge = False, j = 1
while not converge:
parset_2[-6:] = Final_pools_2
j = j+1
fluxes_2,pools_2 = f2py.dalec(fluxes_2,pools_2,drivers,-10.,deltat,removal,fires,parset_2,1)
Final_pools_2.append(pools_2[-1,:])
test = 1-np.abs(Final_pools_2[-1]/parset_2[-6:])
if test > 0.001:
converge = True
Final_pools_2 = np.array(Final_pools_2)
Thanks for your help :)
You cant inialise two variables of different types on one line.
Change it to:
converge = False
j = 1
I am trying to calculate the average disorder in ID trees. My code is below:
Republican_yes = yes.count('Republican')
Democrat_yes = yes.count('Democrat')
Republican_no = no.count('Republican')
Democrat_no = no.count('Democrat')
Indep_yes = yes.count('Independent')
Indep_no = no.count('Independent')
disorder_yes= Republican_yes/len(yes)*(math.log(float(Republican_yes)/len(yes),2))+ Democrat_yes/len(yes)*(math.log(float(Democrat_yes)/len(yes),2))+Indep_yes/len(yes)*(math.log(float(Indep_yes)/len(yes),2))
disorder_no= Republican_no/len(no)*(math.log(float(Republican_no)/len(no),2))+Democrat_no/len(no)*(math.log(float(Democrat_no)/len(no),2))+Indep_no/len(no)*(math.log(float(Indep_no)/len(no),2))
avgdisorder = -len(yes)/(len(yes)+len(no))*disorder_yes - len(no)/(len(yes)+len(no))*disorder_no
return avgdisorder
why do I keep getting math domain error?
Check if the lengths are 0 or not, else you will get MathError.
if len(yes):
disorder_yes= Republican_yes/len(yes)*(math.log(float(Republican_yes)/len(yes),2))+ Democrat_yes/len(yes)*(math.log(float(Democrat_yes)/len(yes),2))+Indep_yes/len(yes)*(math.log(float(Indep_yes)/len(yes),2))
if len(no):
disorder_no= Republican_no/len(no)*(math.log(float(Republican_no)/len(no),2))+Democrat_no/len(no)*(math.log(float(Democrat_no)/len(no),2))+Indep_no/len(no)*(math.log(float(Indep_no)/len(no),2))
if len(yes) or len(no):
avgdisorder = -len(yes)/(len(yes)+len(no))*disorder_yes - len(no)/(len(yes)+len(no))*disorder_no
If you want, you can always add the else clause for all 3 if statements as per your requirement.