robustscale: Robust Estimation of Median (center) and MAD (scale)

In pickgene: Adaptive Gene Picking for Microarray Expression Data Analysis

Description

Smoothing spline estimate of median and mean absolute deviation (MAD).

Usage

robustscale(y, x, nslice=400, corcenter=TRUE, decrease=TRUE)

Arguments

y	response
x	predictor
nslice	number of slices (should be "large")
corcenter	correct for center
decrease	force MAD to decrease with x

Details

This divides data into roughly many nslice slices and computes median and mean absolute deviation (mad) for each slice. These are then smoothed using smooth.spline.

Value

Data frame containing significant genes with the following information:

center	estimate of center median
scale	MAD estimate of scale
x	ordered x values for plotting
y	y sorted by x

Author(s)

Yi Lin

See Also

mad, smooth.spline

Examples

## Not run: 
robustscale(y,x)

## End(Not run)

pickgene documentation built on Nov. 8, 2020, 6:50 p.m.