Colum Header time period matrix

thanks for you reply. 

I wrote the sytex as below

var pw= 'Date'[Date]+-1*if(WEEKDAY('Date'[Date])<7,WEEKDAY('Date'[Date]),WEEKDAY('Date'[Date])-7)

VAR PWNAME='Date'[Date]+-1*if(WEEKDAY('Date'[Date])<7,WEEKDAY('Date'[Date]),WEEKDAY('Date'[Date])-7),"MM/DD")

var transin=[Start date] & " to "& [ End date]

VAR TRANSINNAME=[Week Start date] & " to "& [Week End date],"mm/dd"

var cw='Date'[Week Start date(Sat-Fri)]+6

var cwname='Date'[Week Start date(Sat-Fri)]+6,"mm/dd

var result=
pw,"prior week"& "(" & pwname & ")",
cw,"current week" & "(" & cwname & ")",
transin, "transin" & "(" transinname & ")"
)

return result

but it is showing me the -"switch function  does not support comparing value of types true/ false with value of type Data , Consider using the value or format function to convert one of the values.

what i am doing wrong? will you please help me?