Let us assume that we have defined the following parameter
Now, user can select a value for Data_Selekcja parameter, for example '2018-01-01'. Is there a way of getting the previous value from the list? Previous value would be '2017-07-01' in this case. I need the previous value of this parameter in a calculated field. The current value in a calculated field is given by [Parameters].[Data_Selekcja], but what about the previous value from the list.
Related
I need access previous row value which is calculated one not from Database. I have used previous function like this. Getting error.
Previous(Code.Calculate_EndInv(RowNumber("DateRange"),Previous(Fields!endinv.Value),Fields!reqqty.Value,Fields!mycalcval.Value))
I am new to tableau.
Just recently, I have encountered a problem regarding getting a string value from the previous row
I tried using Previous_Value function but it does not work. :<
Image of the error
Instead of previous value which could be tricky when dealing with partitions, you may use the LookUp function
Returns the value of the expression in a target row, specified as a relative offset from the current row. Use FIRST() +n and LAST() -n as part of your offset definition for a target relative to the first/last rows in the partition. If offset is omitted, the row to compare to can be set on the field menu. This function returns NULL if the target row cannot be determined.
You can create a calculated field Order ID Lookup - 1:
LOOKUP(max([Order ID]),-1)
Remember that Lookup requires an aggregate value as first argoment (in my example you can use either min, max, etc...) followed by the offset you need (in this example it's 1 for previous record).
Once you have your previous value, you can create another calculated field Check:
if max([Order ID]) = [Order ID Lookup - 1]
then '='
else '!='
end
Since Lookup needs an aggregate function, you should "wrap" your Order ID with an aggregation function as well in order to compare those 2 values.
Here's the final result:
I need to create a Dimension (calculated field) that depends on a filter.
My dataset has four columns: ID (Int), Variable Name (String), Value (Int) and Client ID (String). For each client ID there will be a value for each type of variable.
There are 6 types of Variable Name, and for each row there is unique ID.
I'm using a filter by Variable Name so there is one, and only one variable type available at the same time.
In order to display it in a stacked bar chart by that dimension, I have created this calculation field (In reality if has six IFs, but I'll use just one to illustrated it):
IF ATTR([1 (ML_Output)].[Variable Name])= "Interest Rate" THEN [Interest Rate] END
That way, when the filter is in "Monthly Interest Rate", the ATTR function should show the only type of variable available in the Variable Name field, which would be "Monthly Interest Rate". The problem is that it shows the "Cannot mix aggregate and non-aggregate arguments with this function" error.
I've been trying to solve this with many tutorials, but none of them work for one reason of another.
Any ideas?
EDIT:
PS: The original calculation that was doing what I wanted used a Parameter. However, since parameters won't update automatically when the dataset changes, I can't use it anymore. The original calculation was:
IF [Parameter 1]="Interest Rate" THEN [Interest Rate] END
I need the calculated field as a dimension. So, if I aggregated the result of the calculation, then it would be a measure, and that can't be used to create a stacked bar.
I am creating a subscription for a report and want to use the default value for a query based parameter that is time sensitive. My question is, when is the default value set for the parameter? At the moment the subscription is created or executed?
The query based default value is calculated at execution time.
How the default value for parameter is get calculated at execution time? Are you using the cascading parameter?
When you check the subscription setting page, the default value for parameter is the same as the default you set for that parameter in SSDT, and the cascading parameter value will be changed corresponding to the first default parameter value.
In my database, users are complaining that to input data in from a value list, even though they are inputting the same, or next, value in subsequent records they have to scroll down to where the last value was in the list.
Is there a method for filemaker to remember the last value chosen in a value list and display the drop down for the value list starting (in the middle) from there?
Sure, just set the field to the desired value before displaying the value list. Then it will start with that value selected.