Comparison of prediction accuracy among different RNA extractions and different cell compartments. (a) Prediction accuracy of PolyA+ and PolyA- RNA for all genes measured with the CAGE and RNA-Seq techniques. This shows that PolyA+ RNA are better predicted than PolyA- RNA (P-value of paired Wilcoxon test between PolyA+ and PolyA-). (b) Prediction accuracy of PolyA+ and PolyA- RNA from different cell compartments for all genes measured with the RNA-Seq technique (P-value of paired Wilcoxon test between cytosol and nuclues). (c) Prediction accuracy of total RNA in different nuclear sub-compartments, measured by CAGE or RNA-Seq.