Data commit

Task/Text-processing-1/PowerShell/text-processing-1.psh

@@ -0,0 +1,54 @@
+$file = '.\readings.txt'
+$lines = Get-Content $file # $args[0]
+$valid = $true
+$startDate = $currStart = $endDate = ''
+$startHour = $endHour = $currHour = $max = $currMax = $total = $readings = 0
+$task = @()
+foreach ($var in $lines) {
+    $date, $rest = [regex]::Split($var,'\s+')
+    $reject = $accept = $sum = $cnt = 0
+    while ($rest) {
+        $cnt += 1
+        [Double]$val, [Double]$flag, $rest = $rest
+        if (0 -lt $flag) {
+            $currMax = 0
+            $sum += $val
+            $accept += 1
+        } else {
+            if (0 -eq $currMax) {
+                $currStart = $date
+                $currHour = $cnt
+            }
+            $currMax += 1
+            $reject += 1
+            if ($max -lt $currMax) {
+                $startDate, $endDate = $currStart, $date
+                $startHour, $endHour = $currHour, $cnt
+                $max = $currMax
+            }
+        }
+    }
+    $readings += $accept
+    $total += $sum
+    $average = if (0 -lt $accept) {$sum/$accept} else {0}
+    $task += [PSCustomObject]@{
+        'Line' = $date
+        'Reject' = $reject
+        'Accept' = $accept
+        'Sum' = $sum.ToString("N")
+        'Average' = $average.ToString("N3")
+    }
+    $valid = 0 -eq $reject
+}
+$task  | Select -Last 3
+$average = $total/$readings
+"File(s)  = $file"
+"Total    = {0}" -f $total.ToString("N")
+"Readings = $readings"
+"Average  = {0}" -f $average.ToString("N3")
+""
+"Maximum run(s) of $max consecutive false readings."
+if (0 -lt $max) {
+    "Consecutive false readings starts at line starting with date $startDate at hour {0:0#}:00." -f $startHour
+    "Consecutive false readings ends at line starting with date $endDate at hour {0:0#}:00." -f $endHour
+}