Find max value and related records too - powerbi

I have following table.
I want to find out Distributors and assign code for max date transactions.
so answer will be like this.

MAXDateByDistribuitor :=
VAR CurrentDate = SELECTEDVALUE('Table'[Date of Transaction])
VAR LastDateByDist =
LASTDATE(
CALCULATETABLE(
VALUES('Table'[Date of Transaction]),
ALLEXCEPT('Table','Table'[Distribuitors])))
RETURN
//Filters on this visual
//Show items when the value:
//MAXDateByDistribuitor is 1 | Apply filter
IF(CurrentDate=LastDateByDist,1,0)
Note that when using a single table, the functions will only return values present in that table. It would be advisable to add at least one calendar and one dimension to identify the distributors.

Related

Power BI DAX How to add column to a calculated table that summarizes another

I Have a TestTable that summarizes a table Receipts on the Month column and adds a column that counts the number of times (occurence) that each month appears in the Receipts Table.
TestTable = SUMMARIZE(Receipts, Receipts[Month], "TotalReceiptsIssuedInThisMonth", SUM(Receipts[Receipts Issued]), "OccurenceOfMonth", COUNT(Receipts[Month]))
I want to add two columns to this TestTable which will tell me the following:
Sum the TotalReceiptsIssuedInThisMonth of the TestTable and show the
value in each row
For each Month (row), divide the, TotalReceiptsIssuedInThisMonth by the SumOfTotalReceiptsIssued
I know I can click "New Column" and use these formulas:
AvgPercentageReceiptsIssuedInThisMonth = TestTable[TotalReceiptsIssuedInThisMonth]/TestTable[TotalReceiptsIssued]
TotalReceiptsIssued = SUM(TestTable[TotalReceiptsIssuedInThisMonth])
However, I need to integrate those two columns directly into the original TestTable formula to make it all happen in one step for use as a variable in the original Receipts table (otherwise I end up with circular logic if I try using relationships).
I've tried the following:
TestTable = SUMMARIZE(PPTs, PPTs[Month], "TotalReceiptsIssuedInThisMonth", SUM(PPTs[PPTs Issued]), "OccurenceOfMonth", COUNT(PPTs[Month]), "TotalReceiptsIssued", SUM(TestTable[TotalReceiptsIssuedInThisMonth]), "AvgPercentageReceiptsIssuedInThisMonth", TestTable[TotalReceiptsIssuedInThisMonth]/TestTable[TotalReceiptsIssued])
but this returns an error saying "A single value for column 'TotalReceiptsIssuedInThisMonth' in table 'TestTable" cannot be determined. This can happen when a measure formula refers to a column that contains many values without specifying an aggregation such as min, max, count, or sum to get a single result." and I've tried:
TestTable =
VAR first = SUMMARIZE(Receipts, Receipts[Month], "TotalReceiptsIssuedInThisMonth", SUM(Receipts[Receipts Issued]), "OccurenceOfMonth", COUNT(Receipts[Month]))
VAR second = SUM(TestTable[TotalReceiptsIssuedInThisMonth])
VAR third = first[TotalReceiptsIssuedInThisMonth]/second
RETURN
third
But this returns an error saying "The variable'first' cannot be used in current context because a base table is expected."
So my question is, how do I go about combining these three steps into one DAX formula?
I would do something like this. I prefer ADDCOLLUMN(SUMMARIZE()...), because it helps to avoid a miscontexting. As you need a var table, then you need the CALCULATE in ADDCOLUMNS, as it adds the row context.
VAR TestTable =
ADDCOLUMNS(
SUMMARIZE(
Receipts
,Receipts[Month]
)
,"TotalReceiptsIssuedInThisMonth",CALCULATE(SUM(Receipts[Receipts Issued]))
,"OccurenceOfMonth", CALCULATE(COUNT(Receipts[Month]))
,"TotalReceiptsIssued ",SUM(Receipts[Receipts Issued])
)
RETURN
ADDCOLUMNS(
TestTable
,"AvgPercentageReceiptsIssuedInThisMonth"
,DIVIDE([TotalReceiptsIssuedInThisMonth],[TotalReceiptsIssued])
)
Check out More regarding the use of DAX to create a table
https://www.advancelearnlinux.com/how_to_create-table-in-microsoft-power-bi-using-dax-function/

Table with filtered rows

How can I filter in the table only the lines where the values of "Conversion Time"> "Upper Limit Express Conv"
Since "Upper Limit Express Express" is a variable that is adjusted with Date slicer
This way it worked
Filter Column =
VAR Conversion Time = SELECTEDVALUE(Autentique[Conversion Time])
Return
IF(SELECTEDVALUE(Conversion Time)>[Limite Superior Conversão];"A";"B")
You could use a filter column to do this:
Filter Column =
VAR UpperLimit = [Upper Limit Express Conv]
RETURN IF([Conversion Time]>UpperLimit,1,0)
Once the column is created you can simply use it in the filter pane and filter for either 1 or 0 depending on your needs. Hope this helps.
Edit:
Since the column [Conversion Time] is also not readily available, you can try passing that into a variable:
Filter Column =
VAR UpperLimit = [Upper Limit Express Conv]
VAR ConvTime = DATEDIFF([Activities.Novo],[Signed_At],DAY)
RETURN IF(ConvTime>UpperLimit,1,0)

How to select the last value of the day with DAX in Power BI

I am new to power BI and stuck with an issue. I have my model as follows:
Date Dimension
Measurement Fact
The date column in Date Dimension is link to measuredate in Measurement Fact
Below is a sample data:
NB: In edit query, I have changed the type of measuredate to Date only.
I have tried the measure below but it doesn't work the way I want. It will sum all the values of the day but what I want is the last value of the day:
day_fuel_consumption =
CALCULATE (
SUM ( measurement[measurementvalue] ),
FILTER (
measurement,
measurement[metername] = "C-FUEL"
&& measurement[measuredate] = MAX ( measurement[measuredate] )
)
)
My Goal is to get 29242, i.e the last value of the day. Remember that measuredate is a Date field and not Datetime (I changed to Date field so that my Year and Month filter can work correctly). I have changed the type in edit query.
Changing your measure to use a variable could be the solution:
DFC =
var maxDate = MAX(measurement[measuredate])
return
CALCULATE(
SUM(measurement[measurementvalue]),
measurement[measuredate] = maxDate
)
However, you should keep the datetime format for measureDate. If you don't want to see the time stamp just change the format I power bi. Otherwise power bi will see two values with max date and sum them, instead of taking the last one.
Well, if you want to avoid creating a measure, you could drag the fields you are filtering over to the visual filters pane. Click your visual, and scroll a tiny bit and you will see the section I am referring to. From there, just drag the field you are trying to filter In this case, your value. Then select "Top N". It will allow you to select a top (number) or bottom (number) based on another field. Strange enough, it does allow you to do top value by top value. It doesn't make sense when you say it out loud, but it works all the same.
This will show you the top values for whatever value field you are trying to use. As an added bonus, you can show how little or how many you want, on the fly.
As far as DAX goes, I'm afraid I am a little DAX illiterate compared to some other folks that may be able to help you.
I had to create two separate measures as shown below for this to work as I wanted:
max_measurement_id_cf = CALCULATE(MAX(measurement[measurementid]), FILTER(measurement, measurement[metername] = "C-FUEL"))
DFC =
var max_id_cf = [max_measurement_id_cf]
return
CALCULATE(SUM(measurement[measurementvalue]), measurement[measurementid] = max_id_cf)

How to calculate conflicting meeting using data from Exchange server in PowerBI

I am trying to get data insights of my calendar through visualizations in PowerBI. I am able to get almost all data from my outlook calendar using in-house API in PowerBI. I intend to find how many conflicting meetings I have per week, but I couldn't find any flag column for that. I'm trying to use time slicers to generate a what-if parameter to calculate a flag, but it doesn't work. Is there any way I can track conflicting meetings?
The data I have relative to meetings is as below -
You could add a Calculated Column to the dataset, with a formula like this:
Conflicting =
VAR StartDate = 'Calendar'[Start]
VAR EndDate = 'Calendar'[End]
VAR IDCurrent= 'Calendar'[Id]
RETURN
IF (
COUNTROWS(
FILTER (
ALL('Calendar');
'Calendar'[Start] < EndDate &&
'Calendar'[End] > StartDate &&
'Calendar'[Id] <> IDCurrent
)
) > 0; TRUE(); FALSE())
This formula checkes if there are different rows within the same date range.
You can adjust the date comparions based on your needs. I've got the logic from this post and removed the equal signs, to prevent contiguous items marked as overlapping.
The Id column is the Unique Identifier (like a unique, primairy key) automaticly provided by Exchange Online. The filter on Id <> IDCurrent makes sure you're not mark the current row as overlapping, e.g. it searches for all rows exept the current one.:
Result:
Edit: The formula above results in a true/false value. You can easily remove the if statement, to count the conflicting appointements, but remember that the value will be counted twice (or more); for each conflicting appointment.

Need to help build a control column that finds a bug with DAX

Power BI Desktop, DAX
I need to help build a control column that finds a bug.
I have three columns: "SN" - serien nr. Data type: text, "MTH" Type data: Whole Number and "Date" Data type: Date.
Each SN has x Mth. Every Mth has just one date.
For each SN, it is true that it can not have more Mth at an earlier date.
Example:
I solved it only by counting the help tables in Query Editor, which took a lot of performance.
I was able to achieve this using the following calculated column:
Control =
VAR BugSN = Bug[SN]
VAR BugMth = Bug[Mth]
VAR BugDate = Bug[Date]
RETURN CALCULATE(
MAX(Bug[Date]),
ALL(Bug), Bug[SN] = BugSN, Bug[Mth] = BugMth
) = BugDate
What this says is that if the date in that row is the max for that SN and Mth combination, then TRUE otherwise FALSE.
(I named the table Bug, but you'll need to replace that with whatever your table name is.)