Hi everyone, I have a chart which I need that the x value (Axis) changes by changing the slicer value (this slicer is the yellow one that has all the Dims (x values)) and it comes from DimList table. For example, at the moment the chart is totalfreight by custid, but I need if I check the empid from the yellow slicer the chart value changed to totalfreight by empid. This happens for all of the slicer values.
But I don't like bridge table or any method that has a bad effect on performance because the FactTable has a billion rows and I modeled it in SSAS, tabular model and has a live connection. Thanks in advance.
I assume you're referring to the approach that uses a bridge table described in this article. I agree that you may face some performance problems given the amount of data in your model.
First of all, you should try to see if there's some other Power BI frontend functionality that you can use directly in the report, without changing your data model. Perhaps you can use Power BI bookmarks, links or maybe a custom visual?
If not, there's another approach you can use in the data model, that does not rely on bridge tables. Disclaimer: I haven't tested this - there could be other performance issues involved.
Construct a new dimension table with all the members from your individual dimensions. Ie. create a union of all EmpIDs, CustIDs, etc. Make sure you indicate the type of ID in a separate column. The table should look like this:
DimensionId MemberId
categoryid 1
categoryid 2
categoryid 3
custid 1
custid 2
custid 3
...
Let's name this table 'All Dimensions'. The table should not have any relationships to other tables (this is similar to the Parameter Table pattern.
Change your measures to apply a virtual relationship whenever something is selected on the 'All Dimensions' table, to properly filter the fact table:
SUM('factSale'[Freight])
would become:
SWITCH(
SELECTEDVALUE('All Dimensions'[DimensionId]),
"categoryid", CALCULATE(SUM('factSale'[Freight]),
KEEPFILTERS(TREATAS(VALUES('All Dimensions'[MemberId]), 'factSale'[CategoryId])),
"custid", CALCULATE(SUM('factSale'[Freight]),
KEEPFILTERS(TREATAS(VALUES('All Dimensions'[MemberId]), 'factSale'[CustId])),
"empid", CALCULATE(SUM('factSale'[Freight]),
KEEPFILTERS(TREATAS(VALUES('All Dimensions'[MemberId]), 'factSale'[EmpId])),
// ... etc. for all dimensions ...
, // Fallback, when nothing is selected on 'All Dimensions'
IF(NOT ISFILTERED('All Dimensions'[MemberId]),
SUM('factSale'[Freight])
)
)
Put the [DimensionId] column into a slicer and use the [MemberId] column as the axis on your bar chart. Note that the chart will not show anything unless exactly one item has been filtered on the [DimensionId] slicer.
Explanation: The SWITCH statement determines if any selection has been made on the [DimensionId] column of the 'All Dimensions' table. In that case, a filter is applied to the fact table, depending on which dimension has been selected, using the TREATAS function. We're using KEEPFILTERS to make sure that any existing filters made directly on the individual dimensions are kept as-is.
In case no selection has been made on the [DimensionId] column, we want to fall back to the standard measure SUM('factSale'[Freight]) but since we don't want to repeat this measure for all items on the [MemberId] column, we use IF(NOT ISFILTERED( ... to make sure that we return only a blank value, if [MemberId] is currently used on the chart axis.
Related
Can someone please help me get a fix for this please.
I want to let people make only two selection at a time, no more no less from the given options. The intention is to get data on matrix dynamic column based on these two selections.
Thanks
Avi
You did not make clear what the purpose of this exercise is and how the result should look like ("get data on matrix dynamic column"), but you could
Create 2 single selection slicers based on copies of your category column
Make sure they are not related to the rest of your data model
Get the selected rows via the SELECTEDVALUE() function
You may have to consider the case where both selections are the same.
This would be a feature of a slicer visual, but I don't know of any built-in or custom slicer visual that does this.
As a workaround you can show a warning and instruction to select two items, eg a big Card visual with red text and a transparent background in front of your other visuals displaying a measure like:
AreTwoCategoriesSelected =
IF (
DISTINCTCOUNT ( DimProductCategory[ProductCategoryName] ) <> 2,
"Select 2 Categories for this report",
""
)
Which might look like
and
You can't easily use the trick where you have the measure conditionally return BLANK because most evaluations of the measure will have a filter context with just one of the selected values.
I'm pretty new to Power BI. I'm unsure how to approach this.
I have one visualization that displays the ten most frequently bought products in a time frame that is set by a slicer. In another visualization, I display how those products have been selling over the past few years (this time frame is not determined by the slicer). I want to display only the ten products that come from the first visualization, not the ten most common over the time frame in the second visualization.
How can I accomplish this? The approach I have in mind (and I'm open to others) is to create a true/false column that changes with the first visualization. "True" would be for products that are frequently bought as determined by the first visualization in the slicer-determined time range, and the second visualization would only look at values with a "true" in that column. How can I create a column (or table, maybe?) that changes depending on a visualization?
Clarification: most of the pages will say Top10 ... Actually, the measure used was a simple Top5 that includes products with the same number of orders than the 5th product. Therefore, to avoid dealing with larger images, 7 products will be seen but it is a Top5 ranking. The idea is you can replace it with your custom TopN measure.
What I understood:
The simplification of your model plus the disconnected help table would be:
I have one visualization that displays the ten most frequently bought
products in a time frame that is set by a slicer.
The Date slicer belongs to the Dates table in the Data model.
The table viz represents the number of rows in the sales table in the
current context (for each product within the Date range).
The table viz is sorted according to the [#Rows] measure in descending
order.
The table viz only presents the TopN products even without the presence
of the [#Rows] measure due to the presence of the [TopOrders]
measure within Filters on this visual. [TopOrders] is 1.
On the second page you create:
A slicer with the Dates[Date] column (the same one used on the
previous page).
A matrix with Products[ProductName] on the rows, HDates[Year] on
the columns, and a measure on values.
From the View tab, you select the Sync Slicers option.
Inside the Sync Slicers pane:
In the Sync column, check the boxes related to the necessary pages.
In the Display column uncheck the box that contains the over
years report.
So far all we have done is pass the time frame context from page 1 to page 2.
Since the TopN context depends on the time frame context, we can now use the [TopOrders] measure as a Filters on this visual in the matrix. Again, [TopOrders] is 1.
Why do the numbers differ between rows and not between columns?
Also, in this example, the Sales table only has information up to 12/31/2020 but the visualization shows an additional year and the Sales[Amount] values for each order is $1 so that [#Orders] and [SalesAmount] are the same for easy comparison.
HDates is not related to the model and for each combination of HDates[Year]-Products[ProductName], the [SalesAmount] measure is using the information coming from the previously hidden slicer and the respective Products[ProductName] because the information coming from HDates[Year] has no effect yet.
In order to complete this exercise, it only remains to modify the [SalesAmount] measure in such a way that it removes the filter on the time frame (Dates[Date]) and it recognizes HDates[Year] as Dates[Year].
SalesAmount :=
CALCULATE(
SUM(Sales[Amount]),
ALL(Dates),
TREATAS(VALUES(HDates[Year]),Dates[Year])
)
And this is the final result.
I hope it works for someone or the idea can be improved.
Imagine that I have a column with the following values: [A1,A2,A3,A4,T1,T2,T3]
Now, I have a slicer with the mentioned column, but I need that the the "Ts" (T1,T2 and T3) are always selected / filtered and when I choose a specific "A" (A1) for example, dosn't filter the "T".
For example:
If I select with the slicer "A1" the filter in the page should include: [A1,T1,T2,T3]
If I select "A2": [A2,T1,T2,T3]
So If I select an "A" it have to select the specific "A" and all the "Ts".
How can I do that? With filters? relationships?
Thanks
Short answer: we need a parameter table.
This because we might be able to write a measure that internally sets the filter according to our specification, but the Power BI visual would intercept the slicer setting first and would show only the selected rows or columns (for a matrix visual).
Assuming we have the table
this measure ignores any selection from the slicer, computing the total of the whole column, but the matrix visual will only show the row selected with the slicer
TotalV = SUMX(ALL(T), T[V] )
To solve this we can build a parameter table with the combination we want when selecting the F parameter, for instance like the following Parameter table
The column P is to be used in the slicer, while the column F is used to set up a bi-directional relationship with the original T table
Now we create the relationship
We create the measure
SumV = SUM(T[V])
setting the slicer over 'P' and a matrix with 'T[F]' on the rows and the measure '[SumV]' as value we obtain the desired behavior
Additional considerations:
the Parameter table can be generated manually or using a DAX
calculated table
to build a better model we might create a dimension for F
the bidirectional relationship in this configuration doesn't make
the model ambiguous, but we must pay attention when adding tables
and relationships to the model
I have a table visualisation that shows the populations of countries and a toggle switch that flips between 'sold' and 'unsold'. (This works with a measure that checks is a country is present in a sales table and assigns a 1 or 0 which is then used as a filter on the table visualisation).
Various slicers in the dashboard are used to filter the data model and retain the details of sales. When 'unsold' is selected therefore, the relevant countries are already filtered out of the countries data table and it is not possible to display them with their populations.
At the moment the workaround is to use a duplicate countries table that only has a one way filter, so that the rows remain regardless of filtering. This means that other slicers which interact with the rest of the data model don't filter the table visualisation as desired.
I am sure this must be possible using some combination of CALCULATE(), FILTER() and ALL() but I haven't managed to achieve this.
N.B. I can force the unsold countries to appear in a table visualisation using a constant measure (with formula: measure_name = 0) in a column .
Apologies if this is not very well explained, any help much appreciated.
Thanks for reading,
S
Image attached to (hopefully!) explain problem better.
Real scenario is more complicated hence not screenshotting from PBI.
I have two tables as indicated below. The first is a list of dates, the second a list of contracts with their contract start and end dates. The tables are not related since there are two date realtionships. I need to give a summary of how many contracts started and ended on each day. This works fine using a calcualted column, however, when I try and slice on Type or Contract customer, the results in the Date table's calculated columns do not apply, even though ALLSELECTED is applied. How can I get the slicers to filter the rows returned to the to calculated column so that the number of contracts are calculated accordingly.
Calculated column:
StartedContracts = COUNTROWS(FILTER(ALLSELECTED(Contracts), Contracts[StartDate] = DateData[Date]))
Reproduction PBIX here
To get this displaying correctly, an easy way is to go ahead and set up the relationships between the tables. You'll have an active relationship and an inactive relationship, something like this with an active relationship to [StartDate] and an inactive relationship to [EndDate]:
Having done this, defining the measures is simplicity itself!
StartedContracts = COUNTROWS(Contracts)
EndedContracts = CALCULATE(COUNTROWS(Contracts), USERELATIONSHIP(Contracts[EndDate], DateData[Date])
Since the active relationship is to the Contracts[StartDate] column, you don't need to specify any additional filters for StartedContracts.
When calculating EndedContracts you just need to add USERELATIONSHIP() to the CALCULATE() function to tell it to use the inactive relationship which was previously defined to the Contracts[EndDate] column.
Slicers on other columns work as expected.