trim

Returns string w/o leading or trailing whitespace

Utilities to estimate parameters of stochastic process and modeling survival trajectories
             and time-to-event outcomes observed from longitudinal studies. 
             Miscellaneous function for data preparation is also provided.
             For more information, see: "Stochastic model for analysis of longitudinal data on aging 
             and mortality" by Yashin A. et al, 2007, Mathematical Biosciences, 208(2), 538-551 
	     <DOI:10.1016/j.mbs.2006.11.006>.

trim: Returns string w/o leading or trailing whitespace

Description

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