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From | Nick Cox <njcoxstata@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: exponential extrapolation |
Date | Tue, 1 Mar 2011 08:27:26 +0000 |
This looks more as if you have an exponential decline, not an exponential distribution. As with your previous questions, fit an appropriate model using one or more of -regress- after transformation, -glm- with log link, or -nl-. Then use -predict-. Nick On Tue, Mar 1, 2011 at 7:00 AM, ipianah nic <ipianahnic@gmail.com> wrote: > my data set exhibits an exponential distribution.how can I > extrapolate my data set as in the case below where i have genomes and > csf..help please > > genomes csf > 1 2045 > 2 1793 > 3 1715 > 4 1665 > 5 1637 > 6 1613 > 7 1596 > 8 1579 > 9 1566 > 10 1554 > 11 1539 > 12 1527 > 13 1516 > 14 1511 > 15 1497 > 16 1486 > 17 1480 > 18 > 19 > 20 > 21 > 22 > 23 > 24 > 25 > 26 > 27 > 28 > 29 > 30 > 31 > 32 > 33 > 34 > 35 > 36 > 37 > 38 > 39 > 40 > 41 > 42 > 43 > 44 > 45 > 46 > 47 > 48 > 49 > 50 > 51 > 52 > 53 > 54 > 55 > 56 > 57 > 58 > 59 > 60 > 61 > 62 > 63 > 64 > 65 > 66 > 67 > 68 > 69 > 70 > 71 > 72 > 73 > 74 > 75 > 76 > 77 > 78 > 79 > 80 > 81 > 82 > 83 > 84 > 85 > 86 > 87 > 88 > 89 > 90 > 91 > 92 > 93 > 94 > 95 > 96 * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/