scoreThr function

Determine numerically a threshold for the ranking score

Given a log 10 transformed of the sorted ranking score values (dscore), this function determines numerically a threshold (inflection point) for significance of sequencing value level. User should specify the lower and the upper bounds of the slope region containing the inflection point.

scoreThr(dscore, deb, fin)

Arguments

• dscore: transformed score values obtained using the function rankReads()
• deb: integer for lower bound of the slope region containing the inflection point. User should perfom a plot to determine this value
• fin: integer for upper bound of the slope region containing the inflection point. User should perfom a plot to determine this value

Returns

This function returns two values: pos'' and thr'' which are the index or the number of genes with significant values and the score (-log10(score)) threshold

Author(s)

Doulaye Dembele doulaye@igbmc.fr

References

Dembele D, manuscript under preparation

Examples

#    data(fdata);