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Article #28400Getting means and standard deviations out of CricketGraph
From: Roy Smith
Date: Sun, 22 May 1988 20:36
Date: Sun, 22 May 1988 20:36
29 lines
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1611 bytes
Does anybody know how to get mean and standard deviation from
CrickGraph? You can do Z-scores which CricketGraph defines as (X - Mean) /
Standard_Deviation; it obviously calculates the mean and s.d. but the damn
program won't let you see them!
What I really want to do is this: I've got some data sets with
several observations of Y for each X. I'd like to take the data in the
first 4 columns below and generate (as opposed to calculating myself and
entering) the last 2 columns, then do a line plot of X vs. Yavg using sd-Y
for Y error bars.
X Y1 Y2 Y3 Yavg sd-Y
1 10 10 12 10.67 1.155
2 20 25 22 22.33 2.517
3 31 32 30 31.00 1.000
A similarly useful thing to do would be to get the range of the Ys
and use that for the error bars. Should I break down and admit that this
is out of CricketGraph's league and get a real spreadsheet? Another useful
thing would be to have non-symmetric error bars (as in "IBM closed at 14-1/2
with a high of 14-7/8 and a low of 14-3/8"). Any way to make CricketGraph
do that?
--
Roy Smith, System Administrator
Public Health Research Institute
455 First Avenue, New York, NY 10016
{allegra,philabs,cmcl2,rutgers}!phri!roy -or- phri!roy@uunet.uu.net
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arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!oliveb!pyramid!prls!philabs!phri!royShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!oliveb!pyramid!prls!philabs!phri!roy From: roy@phri.UUCP (Roy Smith) Newsgroups: comp.sys.mac Subject: Getting means and standard deviations out of CricketGraph Message-ID: <3280@phri.UUCP> Date: 22 May 88 20:36:05 GMT Organization: Public Health Research Institute, NYC, NY Lines: 29