tsinteger: Time series of counts analysis

#'
#'sexoffences
#'
#'The data set is obtained from the crime data section of the forecasting principles
#'site (http://www.forecastingprinciples.com). This data series represents the counting
#'o sex offences reported in the 21st police car beat in Pittsburgh, during one
#'month. The data consist of 144 observations, starting in January 1990 and ending
#'in December 2001.
#'
#'@name sexoffences
#'
#'@references
#'
#'Ristic, M. M., Bakouch, H. S. and Nastic, A. S. (2009). A new geometric first-order integer valued
#'autoregressive (NGINAR(1)) process. Journal of Statistical Planning and Inference 139, 2218 – 2226.
#'
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