[Eventstudies-commits] r188 - pkg/man
noreply at r-forge.r-project.org
noreply at r-forge.r-project.org
Sun Mar 16 12:14:18 CET 2014
Author: chiraganand
Date: 2014-03-16 12:14:17 +0100 (Sun, 16 Mar 2014)
New Revision: 188
Modified:
pkg/man/lmAMM.Rd
Log:
Added classes to arguments, modified some text.
Modified: pkg/man/lmAMM.Rd
===================================================================
--- pkg/man/lmAMM.Rd 2014-03-16 10:24:29 UTC (rev 187)
+++ pkg/man/lmAMM.Rd 2014-03-16 11:14:17 UTC (rev 188)
@@ -3,47 +3,49 @@
\title{Augmented market model (AMM) estimation}
-\description{This function relates firm returns to the regressors using the linear model (market index movements, currency fluctuations etc.).
-It computes firm exposure for all the regressors in columns of X and subsequently estimates AMM residuals by purging out variation
-from regressand.
-}
+\description{This function relates firm returns to the regressors using
+ the linear model (market index movements, currency fluctuations etc.).
+ It computes firm exposure for all the regressors in columns of X and
+ subsequently estimates AMM residuals by purging out variation from
+ the regressand.}
\usage{
lmAMM(firm.returns, X, nlags = NA, verbose = FALSE)
}
\arguments{
- \item{firm.returns}{A time series object of firm returns for AMM estimation}
- \item{X}{A time series of explanatory variables obtained from
- the makeX function. The first variable is always the
- stock market index. Other variables could be
- such as currency or bond returns, or other variables as
- desired by the user.
- }
+ \item{firm.returns}{a \pkg{zoo} time series object of firm returns for
+ AMM estimation.}
- \item{nlags}{Number of lags of explanatory variables. When unspecified
- the best lag using the AIC is used.
- }
+ \item{X}{a time series of explanatory variables obtained from the
+ makeX function. The first variable is always the stock market
+ index. Other variables could be such as currency or bond returns, or
+ other variables as desired by the user.}
- \item{verbose}{Default is FALSE. When set to TRUE, the function
- prints detailed results while running this function.
- }
-}
+ \item{nlags}{an \sQuote{integer} with the number of lags of
+ explanatory variables. When unspecified, the best lag using the AIC
+ is used.}
+ \item{verbose}{a \sQuote{logical}. Print function details. When set to
+ \sQuote{TRUE}, the function prints detailed results while
+ running. Default is \sQuote{FALSE}.} }
-\value{ The function returns the exposures, HAC adjusted standard
- errors, the number of lags used, and the residuals from the fitted
- model.
-\item{exposures}{This contains the exposure estimates for the firm
-j}
+\value{The function returns a \sQuote{list} containing exposures, HAC
+ adjusted standard errors, number of lags used, and residuals from the
+ fitted model.
-\item{s.exposures}{This contains the HAC adjusted standard error
-of the exposures estimated for the firm firm.returns.}
+ \item{exposures}{a \sQuote{numeric} containing exposure estimates for
+ the firm j.}
-\item{nlags}{Specifies the lag length provided by the user}
+ %% FIXME: "for the firm firm.returns" doesn't make sense. Is it "for
+ %% the firm with returns 'firm.returns'?
+ \item{s.exposures}{a \sQuote{numeric} containing the HAC adjusted
+ standard error of the exposures estimated for the firm
+ firm.returns.}
+ \item{nlags}{shows the lag length provided by user.}
}
\author{Ajay Shah, Vimal Balasubramaniam}
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