ArrayFormula a Filter in a Join (Google Spreadsheets)
问题 I've done a lengthy search and couldn't find what I'm looking for. Maybe someone out there can kindly help? I have this formula in my Google Spreadsheet (I will explain what it does below): =Join(" ",FILTER(Sheet1!B:B;Sheet1!A:A=A1)) In Sheet 1 is a table: Column A is first names (e.g. 'James') and Column B is some comment (e.g. 'Headache'). James (or anyone else) may have multiple rows with different comments in each one (e.g James has 2 rows, one saying 'Headache' and another saying 'Knee