DAX Formula Help

[Anonymous]

Hi 

I am new to DAX and I would like to know how I can fix this

I have the following sample dataset 

ID	X	Y	Length
1	0.321	False	100
1	0.375	False	150
1	0.425	False	200
1	0.257	TRUE	275
1	0.309	False	300
1	0.2948	False	125
1	0.2806	TRUE	95
2	0.2664	False	225
2	0.2522	False	205
2	0.238	False	210
2	0.2238	False	215
2	0.2096	False	219
2	0.1954	False	224
3	0.1812	TRUE	229
3	0.167	False	234
3	0.1528	False	239
3	0.1386	False	243
3	0.1244	False	248
4	0.1102	True	253
4	0.096	True	258
4	0.0818	True	262
4	0.0676	False	267
4	0.0534	False	272
4	0.0392	False	277

 and I would like to know how to create the following grid using DAX

ID	X	Length
1	0.309	370
2	0.2664	-
3	0.1244	229
4	0.0392	773

Mainly what I would like to do to make a grid that has for each ID, the predominant X (X that has the biggest length) and if there are any "True" values in the Y column report the summation length of those True records otherwise report a blank.

[Zubair_Muhammad · Accepted solution]

@Anonymous 

You can use these MEASURES

Predominant X =
CALCULATE (
    MAX ( Table1[X] ),
    FILTER ( table1, Table1[Length] = MAX ( Table1[Length] ) )
)

Length_ = CALCULATE(sum(Table1[Length]),Table1[Y]=true)

[Anonymous]

Thanks Zubair for your help, it is really appreciated 🙂