Hi everyone,
Hope you can help me. I have attached a small example illustrating my problem. I am trying to calculate the standard deviation from the data in the value column. However, I want to discriminate between the samples (three different sample no. and also I want to deine which date I want to include. For an example I would like to calculate the standard deviation for samples with sample number: 1461101 between 5 - 8 august. I have managed to calculate the standard deviation discriminating between sample number using an array formula, but I havent managed to "include" date range in my formula. Hope you can help.
sincerely
Thomas
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