subsetRows: Subset rows from a dataframe by various criteria

In brightchan/cjbmisc:

Description

A group of functions to subset rows from a dataframe

• topvar: subset top p

• topvar2: subset rows with at least thres variance.

• topvar3: subset top n rows by variance.

• NOTE: for topvars, rows with zero sum are automatically removed

• subset_nonzero: subset rows with at least p

• subset_nonzero2: subset rows with at least n non-zero numbers

• subset_rowname: Subset one dataframe according to another, by rownames. Return df has same order as the reference df

Usage

topvar(df, p, v = cv)

topvar2(df, thres, v = cv)

topvar3(df, n, v = cv)

subset_nonzero(df, p)

subset_nonzero2(df, n)

subset_rowname(x, y, order = T)

Arguments

df	numeric dataframe
p	percentage, 0-100
v	method to calculate the variance (cv, mad, mean,etc)
thres	a threshold of variance for the cutoff
n	integer

Value

dataframe

brightchan/cjbmisc documentation built on Nov. 5, 2021, 4:12 p.m.