covmat: Covariance Matrix Estimation

#' @name missingdata
#' @title Symbol Data
#' @description Contains returns for 7 symbols ie BABA, TWTR, LNKD, YHOO, GE, 
#'              LAZ, V starting from 2007-04-01 to 2015-07-02. Data maybe updated
#'              using the getSymbolData script in the inst folder
#' @docType data
#' @source Yahoo finance
#' @usage missingdata
NULL

#' @name factor.data
#' @title Factor Data
#' @description Contains 8 factors. 5 Fama-French factors. 1 Momentum factor. 
#'              1 Liquidity factor, 1 Volatility factor.
#' @docType data
#' @source Ken.French Website, Lubos Pastor website, Yahoo finance
#' @usage factor.data
NULL

#' @name dow30data
#' @title Symbol Data
#' @description Contains returns for 30 symbols found in Dow Jones 30
#'              starting from 2014-04-01 to 2015-07-23. Data maybe updated
#'              using the getSymbolData script in the inst folder
#' @docType data
#' @source Yahoo finance
#' @usage dow30data
NULL

#' @name etfdata
#' @title Symbol Data
#' @description Contains returns for 9 etf symbols XLE, XLY, XLP, XLF, XLV,XLI,
#'              XLB, XLK,XLU starting from 2008-01-01 to 2010-12-31. Data maybe 
#'              updated using the getSymbolData script in the inst folder
#' @docType data
#' @source Yahoo finance
#' @usage etfdata
NULL

#' @name rmtdata
#' @title Simulated data for Spiked Covarianve Model
#' @description Contains large data for 500 observations and 100 variables based
#'                on standard normal independent random variables. It has 15
#'                spikes. The number of spikes can be correctly detected using
#'                the fitting procedure as described in the code.
#' @docType data
#' @usage rmtdata
NULL