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juju Member
Member

Daypart calculations for new column

 

I am looking to create a new column in my dataset that classifies time between 9am and 5pm into one bucket ( say "business hours")  and 5pm to 8 am as "after hours". I have a [TIME] column on which this is based.

 

I am totally new to PowerBI and getting myself confused between the difference between when the DAX language is needed and when the M language is needed. I am doing this on the PowerBI desktop.  Strange - I cant find any discussion about daypart manipulations ( maybe didnt look enough).

 

My query to create the column:

 

if ( [Time] >= "9:00:00 AM" and [Time] <= "5:00:00 PM" ) 
then "Business hours" 
else "After hours"

 

Getting "error" values in the new column created. Tried many iterations without success.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Super User
Super User

Re: Daypart calculations for new column

here is something i tried, i created hour column using DAX , hope it is helpful

hour1.PNG

 

Dax Expression

 

Hours = if(sample2[Time1] >= time(9,0,0) && sample2[Time1] <= time(17,0,0), "Business", "After")



Did I answer your question? Mark my post as a solution!

Proud to be a Datanaut!

www.perytus.com
(MVP Data Platform)


juju Member
Member

Re: Daypart calculations for new column

The solution by parry2k works if you are using DAX to create the formula for the new column ( directly from the Report tab). But when trying to addd a new "custom column" from the query editor, looks like the M language is used there instead ( confusing!!). Here is the M langauge that worked for me there :

 

 

if [Time] >= Time.FromText("09:00:00") and [Time] <= Time.FromText("17:00:00") 
then "Business Hours"
else "After Hours"

 

The comparable DAX formula from the Report tab is:

 

 

if ([Time] >= time(9,0,0) && [Time] <= time(17,0,0) ) 
, "Business hours" 
, "After hours")

 

6 REPLIES 6
Highlighted
Super User
Super User

Re: Daypart calculations for new column

I think following will work, may be some syntax issue but just to give you an idea, add a column and create following DAX:

 

if (Table[Time] >= time(9,0,0) && Table[Time] <= time(17,0,0) ) 
, "Business hours" 
, "After hours")



Did I answer your question? Mark my post as a solution!

Proud to be a Datanaut!

www.perytus.com
(MVP Data Platform)


Super User
Super User

Re: Daypart calculations for new column

here is something i tried, i created hour column using DAX , hope it is helpful

hour1.PNG

 

Dax Expression

 

Hours = if(sample2[Time1] >= time(9,0,0) && sample2[Time1] <= time(17,0,0), "Business", "After")



Did I answer your question? Mark my post as a solution!

Proud to be a Datanaut!

www.perytus.com
(MVP Data Platform)


juju Member
Member

Re: Daypart calculations for new column

Strange: I am using this ( modified from your code above) still not working. Getting a "token literal expected" error in the editor:

 

I have only one table so didint use the qualified table reference name. the error is on the "&&" part.

 

if([Time] >= time(9,0,0) && [Time] <= time(17,0,0), "Business", "After")

 

FYI I am doing this from the query editor screen and clicking on "custom column" under "add column" tab on the ribbon.
juju Member
Member

Re: Daypart calculations for new column

If i change it to below, the syntax error goes away but now new error : "Expression Error " The name 'time' wasnt recognized. Make sure its spelled correctly "!!

 

Notice "time' in lowercaps:

 

if [Time] >= time(9,0,0) and [Time] <= time(5,0,0) then "9am-5pm" else "6pm-8am"
juju Member
Member

Re: Daypart calculations for new column

This worked for me only when I created the formula from the "Report " tab using the Dax editor there like you did in your exmaple. The same formula throws errors when doing so from the query editor ( via "edit queries" on ribbon)

juju Member
Member

Re: Daypart calculations for new column

The solution by parry2k works if you are using DAX to create the formula for the new column ( directly from the Report tab). But when trying to addd a new "custom column" from the query editor, looks like the M language is used there instead ( confusing!!). Here is the M langauge that worked for me there :

 

 

if [Time] >= Time.FromText("09:00:00") and [Time] <= Time.FromText("17:00:00") 
then "Business Hours"
else "After Hours"

 

The comparable DAX formula from the Report tab is:

 

 

if ([Time] >= time(9,0,0) && [Time] <= time(17,0,0) ) 
, "Business hours" 
, "After hours")