Hey everyone,
I have been given approx. 20,000 rows worth of data, in 3 columns, all of them dates (being in Australia, in dd/mm/yy format) to work with in Excel 2002.
For one of the columns, I have to benchmark it against 2 other dates which I have entered myself and formatted properly as dates.
Problem 1 is when I try and find the latest of these 3 dates (1 given, 2 inputted by me). I have tried
=MAX(I10,$L$1,$B10), where I10 = 1/3/2002 (given), $L$1 = 29/12/1998 (inputted and formatted properly by me), and $B10 = 12/12/1991 (also inputted by me)
but it KEEPS returning 29/12/1998!!! (This is laughable, I opened the dialog box for this formula, and it has them all stored as numbers, and 1/3/2002 is the biggest, yet the answer is still 29/12/1998)
Thinking that this is probably because the given dates haven't been formatted properly as dates, I've used the datevalue function to put them into a recognisable form, with some success. However...
For one of the columns of given data, if a certain event occurred (usually death), it has a date attached to it, but if it didn't occur, no date is attached. However applying datevalue to these empty cells produces a #VALUE! error.
What to do? Can I force Excel to recognise the given data as a proper date, ruling out the need for this date function business and so max works properly? Or if I have to apply date function to everything, how do I get it to return a meaningful value (say, zero), if it encounters an empty cell?
Hope I've expressed myself clearly, and any help would be greatly appreciated,
Regards,
Dimitri Ulyinov,
Sydney, Australia
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