paths_to_go_ancestor: Create path results table with highest significant GO...

Description Usage Arguments Details Value Examples

View source: R/utils.R

Description

Create table of results with the comparison of the paths together with the GO functional annotation and the highest significant GO ancestor (HSGOA).

Usage

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paths_to_go_ancestor(pathways, comp_paths, comp_go, pval = 0.05)

Arguments

pathways

Pathways object

comp_paths

Wilcoxon comparison of the matrix of pathways values as returned by do_wilcoxon.

comp_go

Wilcoxon comparison of the matrix of GO values as returned by do_wilcoxon.

pval

P-value cut-off. Default values is set to 0.05.

Details

The table returns in each row: the name of a pathway and its Wilcoxon comparison information (direction, adjusted p-value), the GO term to which the path is related (not necessarily unique), the Wilcoxon comparison informationfor this GO (direction, adjusted p-value), the HSGOA of this GO and its Wilcoxon comparison information (direction, adjusted p-value).

The HSGOA is computed as the GO term with minimum level from all the significant (with respect to value pval) ancestors of a GO. The level of a GO term is computed as the number of nodes in the shortest path from this GO term to the term "GO:0008150". The ancestors of a node are defined as all the nodes from which a path can be defined from the ancestor to the node.

Value

Table of comparisons with Highest common ancestors

Examples

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data(comp)
data(go_vals)
data(brca_design)
data(path_vals)
sample_group <- brca_design[colnames(path_vals),"group"]
comp_go <- do_wilcoxon(go_vals, sample_group, g1 = "Tumor", g2 = "Normal")
## Not run: pathways <- load_pathways(species = "hsa", pathways_list =
c("hsa03320", "hsa04012"))
table <- paths_to_go_ancestor(pathways, comp, comp_go)
## End(Not run)

hipathia documentation built on Nov. 8, 2020, 7:52 p.m.