seismicRoll-package {seismicRoll}

Fast Rolling Statistics for Seismology

Description

This package implements fast versions of 'roll'-ing functions primarily for use in seismology. It is intended for use with the IRISSeismic and IRISMustangMetrics packages originally developed for the IRIS DMC, and now EarthScope Consortium (https://www.earthscope.org). One advantage of the seismicRoll package is that all returned values are of the same dimension as the incoming data with NAs where the rolling function could not be calculated.

Details

Currently exported functions include:

• findOutliers – outlier detection wrapper

• roll_hampel – outlier detection

• roll_mean – rolling mean

• roll_median – rolling median (for outlier replacement)

• roll_sd – rolling standard deviation

• roll_stalta – first break picker

• roll_range – rolling difference of max/min values

History

version 1.1.5

• fixed issue with package documentation, to meet CRAN requirements

• updated documentation for IRIS and UNAVCO merger to Earthscope, fixed urls

version 1.1.4

• bug fix for roll_range when NA values present

version 1.1.3

• minor changes to how the code compiles

• add roll_range function

version 1.1.2 – bug fix

• findOutliers() exits if the roll_hampel() return vector consists entirely of NA values.

version 1.1.0 – findOutliers update and bug fix

• findOutliers() function default argument values changed. Now thresholdMin=10, selectivity=NA, and fixedThreshold=TRUE.

• Bug fix in roll_hampel() handling NA values.

version 1.0.3 – findOutliers update

• Added fixedThreshold argument to findOutliers() function.

version 1.0.0 – initial release