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Filipp Frequent Visitor

## Difference from previous period in matrix

Hey guys,

I have a table with 5 columns:
RPT_DATE - reporting date
POS_TYPE - position type
CNUM - customer number
BSAACID - account number
OVP_CCY - position amount

The table consists of the data as of 2 dates. I want to make a matrix with RPT_DATE in columns and be able to view the absolute difference between 2 dates on every level. So basically I want this difference to be shown like a total column, ie I want only 3 columns in this table - data as of date 1, data as of date 2, difference. I put RPT_DATE as a column, POS_TYPE, CNUM, BSAACID as rows and the following formula in values field:

test_pos = if(min(D1[RPT_DATE])=max(D1[RPT_DATE]);CALCULATE(sum(D1[OVP_CCY]);FILTER(D1;D1[RPT_DATE]=MAX(D1[RPT_DATE])));CALCULATE(sum(D1[OVP_CCY]);FILTER(D1;D1[RPT_DATE]=MAX(D1[RPT_DATE])))-CALCULATE(sum(D1[OVP_CCY]);FILTER(D1;D1[RPT_DATE]=MIN(D1[RPT_DATE]))))

It works pretty good except cases when the data as of the date 2 are missing. In this cases if function returs True and I get positive difference instead of negative: I believe there are easier ways to achieve my goal, please suggest what can be done.

2 ACCEPTED SOLUTIONS

Accepted Solutions
v-jiascu-msft Super Contributor

## Re: Difference from previous period in matrix

Hi @Filipp,

The reason is that one value of the date is missed in the source data. Then the MIN and MAX return the same value. You can try this formula.

```test_pos 2 =
VAR maxDate =
CALCULATE ( MAX ( 'D1'[RPT_DATE] ); ALL ( D1 ) )
VAR minDate =
CALCULATE ( MIN ( 'D1'[RPT_DATE] ); ALL ( d1 ) )
RETURN
IF (
HASONEFILTER ( D1[RPT_DATE] );
SUM ( D1[OVP_CCY] );
CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = maxDate ) )
- CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = minDate ) )
)``` Best Regards!

Dale

Community Support Team _ Dale
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Filipp Frequent Visitor

## Re: Difference from previous period in matrix

@

@v-jiascu-msft wrote:

Hi @Filipp,

The reason is that one value of the date is missed in the source data. Then the MIN and MAX return the same value. You can try this formula.

```test_pos 2 =
VAR maxDate =
CALCULATE ( MAX ( 'D1'[RPT_DATE] ); ALL ( D1 ) )
VAR minDate =
CALCULATE ( MIN ( 'D1'[RPT_DATE] ); ALL ( d1 ) )
RETURN
IF (
HASONEFILTER ( D1[RPT_DATE] );
SUM ( D1[OVP_CCY] );
CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = maxDate ) )
- CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = minDate ) )
)``` Best Regards!

Dale

@v-jiascu-msft, Hi Dale! Thank you very much, it works perfectly!!!

2 REPLIES 2
v-jiascu-msft Super Contributor

## Re: Difference from previous period in matrix

Hi @Filipp,

The reason is that one value of the date is missed in the source data. Then the MIN and MAX return the same value. You can try this formula.

```test_pos 2 =
VAR maxDate =
CALCULATE ( MAX ( 'D1'[RPT_DATE] ); ALL ( D1 ) )
VAR minDate =
CALCULATE ( MIN ( 'D1'[RPT_DATE] ); ALL ( d1 ) )
RETURN
IF (
HASONEFILTER ( D1[RPT_DATE] );
SUM ( D1[OVP_CCY] );
CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = maxDate ) )
- CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = minDate ) )
)``` Best Regards!

Dale

Community Support Team _ Dale
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Filipp Frequent Visitor

## Re: Difference from previous period in matrix

@

@v-jiascu-msft wrote:

Hi @Filipp,

The reason is that one value of the date is missed in the source data. Then the MIN and MAX return the same value. You can try this formula.

```test_pos 2 =
VAR maxDate =
CALCULATE ( MAX ( 'D1'[RPT_DATE] ); ALL ( D1 ) )
VAR minDate =
CALCULATE ( MIN ( 'D1'[RPT_DATE] ); ALL ( d1 ) )
RETURN
IF (
HASONEFILTER ( D1[RPT_DATE] );
SUM ( D1[OVP_CCY] );
CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = maxDate ) )
- CALCULATE ( SUM ( D1[OVP_CCY] ); FILTER ( D1; D1[RPT_DATE] = minDate ) )
)``` Best Regards!

Dale

@v-jiascu-msft, Hi Dale! Thank you very much, it works perfectly!!!

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