Table 1

Illustration of the consecutive sampling procedure
Rank
 Probe set
 Sample Y1
 Sample Y2
 Y2-Y1
 (Y2+Y1)/2
 Sample Mean
 SD (Y2-Y1)
 SD(Y1)+ SD(Y2)

...
 ...
 ...
 ...
 ...


251
 J03040_at
 628
 614
 -14
 621
 614.4
 71.1
 71.8
252
 M26880_at
 657
 583
 -74
 620


253
 HG384-HT384_at
 577
 662
 86
 619


254
 X04654_s_at
 633
 604
 -29
 619


255
 J04046_s_at
 554
 680
 126
 617


256
 X69908_rna1_at
 593
 640
 47
 617


257
 D85758_at
 672
 555
 -117
 614


258
 L12168_at
 633
 592
 -41
 612


259
 HG1614-HT1614_at
 590
 633
 43
 611


260
 X71428_at
 571
 649
 77
 610


261
 S75463_at
 602
 615
 13
 608


262
 X69910_at
 579
 630
 50
 604


263
 X57346_at
 597
 610
 13
 603
 590.1
 136.2
 137.0
264
 U01691_s_at
 576
 630
 54
 603


265
 X17620_at
 605
 594
 -11
 600


266
 U10323_at
 562
 617
 56
 590


267
 AJ001421_at
 413
 766
 354
 589


268
 X62654_rna1_at
 576
 602
 26
 589


269
 D64142_at
 666
 510
 -156
 588


270
 D21063_at
 562
 613
 51
 588


271
 X16560_at
 588
 580
 -8
 584


272
 D26600_at
 580
 586
 6
 583


273
 M19267_s_at
 599
 566
 -33
 583


274
 J02621_s_at
 688
 475
 -213
 582


...
 ...
 ...
 ...
 ...
 ...


Rank shows the rank from the highest mean expression. The columns "Sample Y1 and Y2" give the expression values, Y2 - Y1 is the expressions difference and (Y2+Y1)/2 the mean expression of the probe sets Y1 and Y2. Sample Mean is the mean expression of the sample, "D(Y2-Y1)" is the standard deviation obtained from the difference of expressions and SD(Y1)+SD(Y2) is the sum of the standard deviations calculated from the values Y1 and Y2, respectively. The first 250 probe pairs are excluded to keep variation of the mean expression within the sample small.

Novak et al. Biology Direct 2006 1:27   doi:10.1186/1745-6150-1-27