Examples/Charts/ChartAndTrendlines.ps1

# Creates a worksheet, addes a chart and then a Linear trendline

$xlfile = "$env:TEMP\trendLine.xlsx"
Remove-Item $xlfile -ErrorAction SilentlyContinue

$data = ConvertFrom-Csv @"
Region,Item,TotalSold
West,screws,60
South,lemon,48
South,apple,71
East,screwdriver,70
East,kiwi,32
West,screwdriver,1
South,melon,21
East,apple,79
South,apple,68
South,avocado,73
"@


$cd = New-ExcelChartDefinition -XRange Region -YRange TotalSold -ChartType ColumnClustered -ChartTrendLine Linear
$data | Export-Excel $xlfile -ExcelChartDefinition $cd -AutoNameRange -Show