The example of subtracting numbersįor subtracting numbers, you may directly write the numbers with minus sign in the desired cell. See the following section for using the minus operator in different examples. In that case, the cells containing negative values will be subtracted. For example:įor subtracting numbers in cell ranges, you may use the SUM function. Instead, you may accomplish the task of subtracting numbers or a cell’s value from the other by using the minus arithmetic operator (-). Thanks in advance for any help you can offer.There is no Excel SUBTRACTION function. 'I also think I may need something to make this write or end properly. I'm not sure the best way to go about that. 'I need to point the value of X to be the next value in column C that is just one row higher than the next value in Column D that's >= 0:06:00 minutes. 'Cell G2 has the 6 minute value in it (i did it this way since it's set as a time value) although I could also add a 00:06:00 if that would work.ĪctiveCell.Offset(0, 1).Value = X - ActiveCell.Offset(0, -1).Value 'I basically want this to mean search down row D (Difference of time column) for values that are greater than 6 minutesĭuration = Cells(Rows.Count, "D").End(xlUp).Row I developed the following draft macro, but I'm new to VBA and can't get the pieces to fit together. I've worked from several examples including this one on copying based on other cell values, this one that sums certain rows if conditions are met, and possibly the closest, this one that adds and subtracts values based on values in other cells. Photo # Date Time Difference of time Duration of visit
I put #hash-marks# around the Difference of Time values that are greater than 6 minutes for ease of reading. Here is an example, where I want to subtract the value in with ** two stars ** from the value several records higher with * one star *. I'm trying to create a macro that will calculate the duration of time in which animals are present in front of the camera.
We make the assumption that if the animals are not present for 6 minutes, we consider it a new occurrence of animals and new data point. I'm trying to calculate the duration of presence of animals that are photographed by an motion-sensitive camera every few seconds as long as there is activity in front of the camera.
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