What's wrong with this code: Value never assigned to?

[epete]

def FlattenIT = No;
if (GetQuantity() != 0) then {FlattenIT = Yes;} else {}

I get errors
Already assigned: FlattenIT at 137:31
Value never assigned to FlattenIT at 137:31

and this code

def FlattenIT = "";
if (GetQuantity() != 0) then {FlattenIT = "FlattenIT";} else {}

Gets me an incompatible parameter.

 

[cos251]

I think you need to remove the assignment to FlattenIT

Here is the example from the Learning Center

input price = close;
input long_average = yes;
plot Avg;
if long_average {
Avg = Average(price, 26);
} else {
Avg = ExpAverage(price, 12);
}

 

[epete]

In the second example I'm just trying to define a string and based on a condition set the value of that string to something. Maybe I just don't get how variables work in ThinkScript?

def TriggerLabel = "";
if (Yes) then {TriggerLabel = "FlattenIT";} else {}

Errors -
Incompatible parameter: "" at 136:5
Expected double at 136:5

 

[cos251]

You can't assign the variable, in the first line of your example above - it should be
def = TriggerLabel;
then your if statement.

The else clause also has to assign the variable if the "if" statement is not "true" Similar to the "plot Avg;" example in post 2.

 

[epete]

Nope that gave me an error too.

 

[generic]

@epete Your else statement in the original code was not defined and you already set FlattenIT as No. TriggerLabel can't be equal to a string and again the else statement is nothing.

def FlattenIT;
if (GetQuantity() != 0) then {FlattenIT = Yes;} else {FlattenIT = No;}

##OR

def FlattenIT = if GetQuantity() != 0 then yes else no;

 

[epete]

Ok, got it. Still trying to wrap my head around all the limitations of ThinkScript. Much appreciate the responses everyone.