filter_nonzero: Vectorized filter function in the spirit of k over a

In krisrs1128/phyloseqExtend: Extend Phyloseq to Rich Data Types

Description

We want to keep only those rows / cols that have many values above some threshold.

Usage

filter_nonzero(X, a = 20, q = 0.9)

Arguments

X	A matrix whose rows want to filter.
a	The threshold expression value.
q	A quantile for the number of samples above the threshold, determining which samples we keep. So, only samples with many samples above a will be returned.

Value

ix The indices for the rows to keep.

krisrs1128/phyloseqExtend documentation built on May 20, 2019, 1:31 p.m.