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# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General
# Public License along with this library; if not, write to the
# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
################################################################################
# FUNCTION: DESCRIPTION:
# rowStats Computes sample statistics by row
# rowSums Computes sums of values in each row
# rowMeans Computes means of values in each row
# rowSds Computes standard deviation of each row
# rowVars Computes sample variance by row
# rowSkewness Computes sample skewness by row
# rowKurtosis Computes sample kurtosis by row
# rowMaxs Computes maximum values in each row
# rowMins Computes minimum values in each row
# rowProds Computes product of values in each row
# rowQuantiles Computes product of values in each row
# FUNCTION: NO LONGER USED:
# rowAvgs Computes sample mean by row
# rowStdevs Computes sample variance by row
################################################################################
rowStats <-
function(x, FUN, ...)
{
# A function implemented by Diethelm Wuertz
# Description:
# Computes sample statistics by row
# FUNCTION:
# Statistics:
apply(na.omit(as.matrix(x), ...), 1, FUN, ...)
}
# ------------------------------------------------------------------------------
# rowSums()
# is part of R's base package
# ------------------------------------------------------------------------------
# rowMeans <-
# is part of R's base package
# ------------------------------------------------------------------------------
rowSds <- function(x, ...) { rowStats(x, "sd", ...) }
rowVars <- function(x, ...) { rowStats(x, "var", ...) }
rowSkewness <- function(x, ...) { rowStats(x, "skewness", ...) }
rowKurtosis <- function(x, ...) { rowStats(x, "kurtosis", ...) }
rowMaxs <- function(x, ...) { rowStats(x, "max", ...) }
rowMins <- function(x, ...) { rowStats(x, "min", ...) }
rowProds <- function(x, ...) { rowStats(x, "prod", ...) }
# ------------------------------------------------------------------------------
rowQuantiles <-
function(x, prob = 0.05, ...)
{
# A function implemented by Diethelm Wuertz
# FUNCTION:
# Row Quantiles:
stopifnot(length(prob) == 1)
rowStats(x, "quantile", probs = prob, ...)
}
################################################################################
rowAvgs <- function(x, ...) rowMeans(x, ...)
rowStdevs <- rowSds
################################################################################
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