CODEWITHSUNDEEP
arrayspowershelladditionpowershell-2.0
Oday Sawaqed
Oday Sawaqed

Reputation: 113

Powershell adding values together

Here is my code:

clear-host

function isNumeric ($x) {
try {
    0 + $x | Out-Null
    return $true
} catch {
    return $false
}
}

function output-file ($ave, $high, $low, $date)
{
write-output "Programer: Oday Sawaqed"
write-output "Class: CIS 124"
write-output "PowerShell Assignmnent"
write-output ""
Write-output ""
write-output " Current Date                    Average               Highest                        Lowest"
write-output " $date                $ave                   $high                 $low "
}


$array = @()
$hold
$n = 1

do {
$hold = read-host "number $n"
if (isNumeric $hold -eq $true){
if (999 -ne $hold) {
$array += $hold
$n = $n + 1
}
else
{
clear-host
write-host "Thank you."
write-host "The numbers you entered are:" $array
write-host "Please select a file name to save the output:"
$fileName = Read-host

$date = get-date -format "dddd, MMMM d, yyyy"
$array = $array | Sort-Object 
$ave = 
$high = $array | Select-Object -last 1
$low = $array | Select-Object -first 1

output-file $ave $high $low $date | Out-File c:\$fileName.txt
}
}
else {
write-host "Please enter a numeric value"
}
}
while (999 -ne $hold)

Now the code works perfectly, i just can't figure out how to add up the values in my array to calculate the average. can someone please help me or give me a hint! i know that i need to add the values together and then divide be $n, i just don't know how to add the values.

Upvotes: 11

Views: 32739

Answers (2)

JPBlanc
JPBlanc

Reputation: 72660

To compute average you can use Measure-Object Cmdlet:

($array | Measure-Object -Average).average

Upvotes: 29

user847990
user847990

Reputation:

One way I found to do the addition would be something like this:


$sum = $array -join '+'
Invoke-Expression $sum

Your output of $sum is simply going to add the "+" and then invoke-expression will actually do the math for you. So your output would look something like:


$sum
1+2+3+4+5+6+7+8+9
Invoke-Expression $sum
45

Upvotes: 3

Related Questions