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Re^2: standard deviation accuracy question

by tlm (Prior)
on Jul 22, 2005 at 15:56 UTC ( [id://477268]=note: print w/replies, xml ) Need Help??

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  1. or download this
    condition1 50.73
    condition2 44.34
    condition3 52.05
    condition4 56.39
    
  2. or download this
    use strict;
    use warnings;
    ...
    condition2 360.5 318.5 356 316.5 330 296.5 444 474 416.5 355 320 401.5
    + 363.5 332 363 324 388 312 344 372 347.5 338
    condition3 372 354 358 311 336.5 297 485 461 407.5 365 342 428 494 343
    +.5 372 324 379.5 345 389 384 363 346
    condition4 324 305.5 364 320 327.5 288.5 432.5 434 447 369 315 397.5 5
    +15 339 405 330 396 319 345 381.5 340 317
    
  3. or download this
    use List::Util 'sum';
    
    ...
      my $n = @$data;
      return sqrt( ( $sum2 - (( $sum*$sum )/$n) )/($n-1) );
    }
    

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