In the median filter experiment, due to the watermark capture failure, W of the proposed method is superior to Li's [27] model for diverse masks.
If the knockdown does not occur, theoretically the expected median of experiment (1) will be calculated as; m 1 expected)=m 2/δ which symbolically means (R test/G control)/(G test/G control)=R test/G test.
At the end of the experiment, median LP ratio (interquartile range) obtained from the intracerebral, intravenous, and intra-arterial microdialysis catheters were 846 (24309990), 309 (103–488), and 27 (21 31), respectively.
Resulting data was normalized to internal standard and fresh weight, and each metabolic-feature was normalized to the median within each experiment and genotype, and log10 transformed prior to statistical analysis.
If more than one spectrum was obtained for a peptide in a single LC-MS/MS experiment, median peptide ratio value from all spectra was used.
In a first normalization step, we center the median of each experiment to zero and perform a quantile normalization (Bolstad et al., 2003) separately for the ABI3 ChIP-chip experiments and the input chromatin control experiments.
To tease out genes important for in vivo fitness, we examined genes, that when disrupted, resulted in mutants with an output to input ratios less than 0.1 × average median of that experiment, reasoning that these genes would represent priority candidates for future targeted investigation.
To examine the mass spectrometer and batch effects, we calculated the multivariate median for all experiments and the L1-distance of each experiment from the multivariate median.
At the time of the experiments, median tumour weight for MDA-MB-231 tumours was 131 mg, generally ranging between 90 mg (lower quartile) and 338 mg (upper quartile).
The thresholded values were log-transformed and then centered by the median of all experiments.
