Is there any way to include functions in conditions?
i.e: SUMIF(A1:A10, >=DATE(2011,C8,01), B1:B10)

The only way I can make that kind of condition work is by entering it as a string, which is not useful if I want to copy the formula to other cells (cannot keep the reference to other cells inside the condition).

Thanks

I agree this is an iWorks question but I've copied your post to the Help section because most Members look there to assist others.

Tim

Ok, I'll take a stab at it. I haven't tested this, because I'm feeling too lazy to create the spreadsheet needed, but here is how I created the formula shown in the attachment.

- Choose the cell for the formula by double tapping, and going into formula mode in the cell editor.

- Tap functions, navigate to SUMIF, tap it. You get the function and three sets of variables; test-value, condition, sum-values

- test-values is already highlighted. If not tap on it to highlight, then tap on the first test-value cell and use the handles to expand the selection. (undo is your friend)

- Tap on condition to select it.

- Choose the less-than-or equal-to condition from the keypad to the left of the number pad. You'll find the extra symbols by tapping on bar below the pad.

- Now tap funcion, navigate to the DATE function and select it.

- Tap each of the new variables in the DATE function and either type in the values or select the cell that holds them.

- Tap the sum-values and tap the first cell then drag the handles to select the cell range. (again, undo is your friend).

Yes, before I did exactly as you described but I get a syntax error. Even without the DATE function and just entering a date (not in string format), I get the same sytax error. The only way I can make it work is with a string as a condition.

Is what you posted working for you?

Well, like I said, I did not set up enough of a spreadsheet to test how the formula works, but I can enter it without a syntax error.

When you created the fornula did you use >= as you typed it, or the actual condition, which is the the > with a bar under it?