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Full Discussion: A strange formula
Top Forums Shell Programming and Scripting A strange formula Post 302868115 by ipatah on Saturday 26th of October 2013 01:26:44 AM
Old 10-26-2013
A strange formula
Dear Masters,

Kindly need your helps for this issue..

I face a formula as a picture...

the input file is
Code:
    A DEPT        Vp           Vs            rho         VPperVS
 ------------------------ ------------ ------------ ------------
          700     151.9218     121.9269        2.223     3.623484
        700.5      155.016     125.0216        2.223     3.541452
          701      152.842     122.8473        2.223     3.581353
        701.5     154.3924      124.398        2.223     3.535076
          702     149.1104      119.116        2.223     3.649647
        702.5     140.8567      110.862        2.223     3.852324
          703     150.7773     120.7838        2.223     3.588501
        703.5     155.8877     125.8932        2.223     3.460893
          704     152.3356     122.3411        2.223      3.53136
        704.5     152.1419     122.1472        2.223     3.525742
          705     150.4891     120.4947        2.223     3.554218
        705.5      149.818     119.8241        2.223     3.558841
          706     162.8467     132.8524        2.223     3.263778
        706.5      152.063     122.0691        2.223     3.484347
          707     151.6896     121.6949        2.223     3.481663
        707.5     152.2395      122.245        2.223     3.458166
          708     151.4207     121.4262        2.223     3.465988
        708.5     151.9085     121.9141        2.223     3.444127
          709     150.7998      120.805        2.223     3.458545
        709.5      149.849     119.8546        2.223     3.469783
          710     148.9318     118.9373        2.223     3.485225
        710.5     146.2235     116.2287        2.223     3.603258
          711     144.8946     114.9012        2.223     3.701914
        711.5     130.9615      100.967        2.223     4.160463
          712     144.8977     114.9019        2.223      3.83023
        712.5     147.7456     117.7512        2.223     3.817976
          713     149.1007     119.1062        2.223     3.851385
        713.5     146.1146     116.1187        2.223      4.00504
          714     150.8179     120.8235        2.223     3.949459
        714.5     151.3544     121.3601        2.223     4.010254
          715     157.7299      127.733        2.223     3.918912
        715.5     136.3569     106.3686        2.223     4.469709
          716     172.2356      142.241        2.223     3.486321
        716.5     156.1267     126.1329        2.223     3.790136
          717     149.2792     119.2854        2.223     3.906321
        717.5     150.6867     120.6925        2.223     3.814899
          718     150.4559     120.4617        2.223      3.76809
        718.5     149.0493     119.0548        2.223     3.750639
          719     149.2419     119.2475        2.223     3.694633
        719.5     150.9317     120.9373        2.223     3.604242
          720     150.6643     120.6699        2.223     3.561953
        720.5     150.0267     120.0323        2.223     3.519127

the goal is we will get a new column (include angle information) from the highest correlation between VsperVs column and calculated output.
for this, in my logic is

1. run formula (describe in attached picture) for every angle (from -90 to 90)
2. correlate between formula output from step number one with VpperVs column
3. get the highest similarity
4. output the formula column (include angle information) which has the highest similarity

This issue is very hard for me, please kindly need your help..

Thanks and regards,
Ipatah
A strange formula-formulajpg
 

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