if you know that there are clearly wrong values ... eliminate them ...
if indeed you have millions of values ... what harm can it do?
by the way ... if you have millions in your sample ... what kind of a sample is it to have SOOOOO many?
At 12:05 PM 2/18/03 -0800, saisat wrote:
Hello all,I have a large quantity of data for which i have the mean and Standard deviation. But in this data, quite of few of the values are really inaccurate. How can I get the "accurate" mean of the above sample data. For example if I have 100, 100, 100, 500 as the sample data the mean is 200. But in my case 500 is obviously an erroneous value for the data. The actual mean should be close to 100. How can I get this value bearing in mind that my sample in quite large (in millions) and i need to somehow "remove" these inaccuracies Thanks Sat . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
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