Powershell - counting the number of times words from a list are in a csv column - zero value important - powershell

Question

I am trying to count the number of times a list of words are in a csv column where a zero value is important.
This code only returns a value if the word is in the csv column and I also want a 0 if the word is not in the column
Import-Csv C:\Users\Work_PC\Documents\TAT\July\Stock.csv -Header Animal | where {$_.Animal -in $searchTerms} | Group-Object Animal -NoElement
Examples stock.csv
Animal,Someothervalue,anothervalue,
Cow,1,2,
Sheep,1,3
Pig,1,4
Cow,1,2,
Sheep,1,3
Pig,1,4
Cow,1,2,
Cow,1,2,
Sheep,1,3
Pig,1,4
Cow,1,2,
example $searchterms
Cow
Sheep
Pig
Horse
Donkey
Using the above code returns this value
Count Name
----- ----
5 Cow
3 Sheep
3 Pig
I would like it to return
Count Name
----- ----
5 Cow
3 Sheep
3 Pig
0 Horse
0 Donkey
Thanks

Answer 1

Group-Object will not list items it is unaware of.
Personally I would use the list of search terms to create objects and assign values, this also allows for additional data to be considered if required:
$SearchTerms = "Cow","Sheep","Pig","Horse","Donkey"
$GrpObjResults = Import-Csv C:\Users\Work_PC\Documents\TAT\July\Stock.csv -Header Animal | where {$_.Animal -in $searchTerms} | Group-Object Animal -NoElement
$ObjProps = #{
Name = [String]
Count = [int]
}
$Results = #()
Foreach($Term in $SearchTerms){
$ListEntry = New-Object -TypeName PSObject -Property $ObjProps
$ListEntry.Name = $Term
$ListEntry.Count = ($GrpObjResults | Where {$_.Name -eq $Term}).Count
$Results += $ListEntry
}
$Results
This will give the desired output of:
Count Name
----- ----
5 Cow
3 Sheep
3 Pig
0 Horse
0 Donkey

Answer 2

It looks from your example, the CSV file already has headers, so you could simply iterate the search terms and do a Select-Object to get what you seek:
$searchTerms = 'Cow','Sheep','Pig','Horse','Donkey'
$csv = Import-Csv 'C:\Users\Work_PC\Documents\TAT\July\Stock.csv'
foreach ($term in $searchTerms) {
'' | Select-Object #{Name = 'Count'; Expression = {($csv | Where-Object {$_.Animal -eq $term}).Count}},
#{Name = 'Name'; Expression = {$term}}
}
Output:
Count Name
----- ----
5 Cow
3 Sheep
3 Pig
0 Horse
0 Donkey