First Middle Last Dates

[awal2018]

I am working for a hotel company, and we have a list of Guest ID's and their Stay dates, I want to determine which stays were a first, middle or last day.

ID Stay Date Frist Middle Last

2	1/1/2018	First Day
2	1/2/2018	MIddle Day
2	1/3/2018	Last Day

\

Any tips?

[Salonic · Accepted solution]

Try with this formula :

Status = 
IF( ISBLANK(DateAdd(Guests[Dates];-1;DAY));"First Day";
	IF ( ISBLANK(DateAdd(Guests[Dates];1;DAY) ) ; "Last Day" ; "Middle Day" ) )

[Vvelarde]

@awal2018

if the guest stay 5 days the middle are days 2,3,4?

Regards

Victor

[awal2018]

yes

[Salonic]

Hello,

I created this table :

Created this column :

Status = 
IF( Guests[Dates]=CALCULATE ( MINX( Guests; Guests[Dates]) ; ALLEXCEPT ( Guests ; Guests[Guests] ) );"First Day";
	IF( Guests[Dates]=CALCULATE ( MAXX( Guests; Guests[Dates]) ; ALLEXCEPT ( Guests ; Guests[Guests] ) ); "Last Day"
	;"Middle Day" ))

The result :

I hope this will help

[awal2018]

All of those days you provided should actually be listed as first days becuase the previous day they did not stay with us. 

if the guest stays with us on the 1st, 2nd and 3rd the 1st should be a first day the 2nd a Middle and the 3rd day a last.

Then if the same guest stays with us on the 5th-6th the 5th should be a new first day then the 6th a last day.

Does that make sense?

[Salonic · Accepted solution]

Try with this formula :

Status = 
IF( ISBLANK(DateAdd(Guests[Dates];-1;DAY));"First Day";
	IF ( ISBLANK(DateAdd(Guests[Dates];1;DAY) ) ; "Last Day" ; "Middle Day" ) )

[awal2018]

Amazing thank you!

[Vvelarde]

@awal2018 @Salonic

Hi, there is a issue in the formula when you have contiguous dates in different GuestID.

[awal2018]

you are right 😞 . I saw this when I applied to my larger dataset, any way to work around?

[Vvelarde · Accepted solution]

@awal2018

Hi, try with this calculated column:

Day =
VAR StayDate = Table1[StayDate] - 1
VAR StayDate_plus1 = Table1[StayDate] + 1
RETURN
    IF (
        COUNTROWS (
            FILTER (
                Table1;
                Table1[StayDate] = StayDate
                    && Table1[GuesID] = EARLIER ( Table1[GuesID] )
            )
        )
            < 1;
        "First";
        IF (
            COUNTROWS (
                FILTER (
                    Table1;
                    Table1[StayDate] = StayDate_plus1
                        && Table1[GuesID] = EARLIER ( Table1[GuesID] )
                )
            )
                < 1;
            "Last";
            "Middle"
        )
    )

Regards

Victor

[awal2018]

Amazing! 

Any way to do this in DAX without a calucated column. I understand if not. Thanks so much for your help! lifesaver!

[awal2018]

can you post your sample results? my syntax is different than what this sample is

[Salonic]

Here is a file :

https://1drv.ms/u/s!AhxEamX-j2-mgmnycwmjdnbhB6GT