Discussion Re: Running mean. in Excel
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2774379#M114918
<P>That allows us to enter the same formula into the entire range. But arguably, that might be overkill. A simpler approach:<BR /><BR />B3: =AVERAGE(A$3:A3)<BR />B102: =AVERAGE(A3:A102)<BR /><BR />Copy B3 into B4:B101 (that is, the first 99 cells). A3 (without "$") changes to A4, A5, etc as we copy down the column. A$3 remains unchanged. Thus, the range is effectively A3:A3, A3:A4, A3:A5, etc as we copy down the column.<BR /><BR />Copy B102 into B103:B1000 (that is, the rest of the column). A3:A102 changes to A4:A103, A5:A104, etc as we copy down the column.</P>Wed, 22 Sep 2021 14:37:57 GMTJoe User2021-09-22T14:37:57ZRunning mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2766845#M114592
<P>I am using a running mean of 100 in noisy data. Can I fill in the mean for the first 99 obs with part means. I can do this one row at a time but can I get excel to do it automatically?</P>Mon, 20 Sep 2021 12:14:17 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2766845#M114592Lillioja2021-09-20T12:14:17ZRe: Running mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2767231#M114609
<P>You've had quite a few views and no replies.</P><P> </P><P>Could I suggest that you revise your question so that we, uh, can figure out what you "mean." "Mean" in this sense having to do with <U><STRONG>meaning</STRONG></U>.</P><P> </P><P>It's not really clear--although it no doubt is in your mind--what you mean by your description of "running mean." So a fuller explanation of what you're doing and what you're wanting to achieve by doing that.....would help you get some help.</P>Mon, 20 Sep 2021 13:47:30 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2767231#M114609mathetes2021-09-20T13:47:30ZRe: Running mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2769751#M114717
<P><LI-USER uid="425987"></LI-USER> </P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Lillioja_0-1632213358224.png" style="width: 400px;"><img src="https://techcommunity.microsoft.com/t5/image/serverpage/image-id/311756i1C8426368F92F0C5/image-size/medium?v=v2&px=400" role="button" title="Lillioja_0-1632213358224.png" alt="Lillioja_0-1632213358224.png" /></span></P><P>Raw data blue, running mean in red (moving <SPAN>average) period of 10 done by excel.</SPAN></P><DIV class=""> </DIV><DIV class=""> </DIV><P> </P><DIV class=""> </DIV><P> </P><DIV class=""> </DIV><P> </P><P> </P>Tue, 21 Sep 2021 08:46:32 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2769751#M114717Lillioja2021-09-21T08:46:32ZRe: Running mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2769753#M114718
Gets smoother still with a period of 100 but then there is a gap between 0 and 100. I can fill this in by hand but I thought there might be a short cut.Tue, 21 Sep 2021 08:48:39 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2769753#M114718Lillioja2021-09-21T08:48:39ZRe: Running mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2770456#M114747
<P>If the data is in A3:A1000, you can "work up" to a 100-unit moving average by entering the following formula in B3 and copying down the column:</P><P> </P><P>=AVERAGE(INDEX(A:A, MAX(ROW(A$3),ROW()-99)):A3)</P><P> </P><P>I use ROW(A$3) instead of simply 3 so that the number is adjust automagically if we move the data later.</P>Tue, 21 Sep 2021 14:19:21 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2770456#M114747Joe User2021-09-21T14:19:21ZRe: Running mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2774282#M114913
I need to learn some more commands to use in excel, but I see where you are going, thanks.Wed, 22 Sep 2021 14:17:14 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2774282#M114913Lillioja2021-09-22T14:17:14ZRe: Running mean.
https://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2774379#M114918
<P>That allows us to enter the same formula into the entire range. But arguably, that might be overkill. A simpler approach:<BR /><BR />B3: =AVERAGE(A$3:A3)<BR />B102: =AVERAGE(A3:A102)<BR /><BR />Copy B3 into B4:B101 (that is, the first 99 cells). A3 (without "$") changes to A4, A5, etc as we copy down the column. A$3 remains unchanged. Thus, the range is effectively A3:A3, A3:A4, A3:A5, etc as we copy down the column.<BR /><BR />Copy B102 into B103:B1000 (that is, the rest of the column). A3:A102 changes to A4:A103, A5:A104, etc as we copy down the column.</P>Wed, 22 Sep 2021 14:37:57 GMThttps://techcommunity.microsoft.com/t5/excel/running-mean/m-p/2774379#M114918Joe User2021-09-22T14:37:57Z