Powershell - group array objects by properties and sum - powershell

Question

I am working on getting some data out of CSV file with a script and have no idea to solve the most important part - I have an array with few hundred lines, there are about 50 Ids in those lines, and each Id has a few different services attached to it. Each line has a price attached.
I want to group lines by ID and Service and I want each of those groups in some sort of variable so I can sum the prices. I filter out unique IDs and Services earlier in a script because they are different all the time.
Some example data:
$data = #(
[pscustomobject]#{Id='1';Service='Service1';Propertyx=1;Price='5'}
[pscustomobject]#{Id='1';Service='Service2';Propertyx=1;Price='4'}
[pscustomobject]#{Id='2';Service='Service1';Propertyx=1;Price='17'}
[pscustomobject]#{Id='3';Service='Service1';Propertyx=1;Price='3'}
[pscustomobject]#{Id='2';Service='Service2';Propertyx=1;Price='11'}
[pscustomobject]#{Id='4';Service='Service1';Propertyx=1;Price='7'}
[pscustomobject]#{Id='2';Service='Service3';Propertyx=1;Price='5'}
[pscustomobject]#{Id='3';Service='Service2';Propertyx=1;Price='4'}
[pscustomobject]#{Id='4';Service='Service2';Propertyx=1;Price='12'}
[pscustomobject]#{Id='1';Service='Service3';Propertyx=1;Price='8'})
$ident = $data.Id | select -unique | sort
$Serv = $data.Service | select -unique | sort
All help will be appreciated!

Answer 1

Use Group-Object to group objects by common values across one or more properties.
For example, to calculate the sum per Id, do:
$data |Group-Object Id |ForEach-Object {
[pscustomobject]#{
Id = $_.Name
Sum = $_.Group |Measure-Object Price -Sum |ForEach-Object Sum
}
}
Which should yield output like:
Id Sum
-- ---
1 17
2 33
3 7
4 19