adult.coxph: Create data with age and IFBFat to model survival
In khuggler/TediousEcology: Data Formatting for Various Analyses in Ecology

Create data with age and IFBFat to model survival

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adult.coxph(data, uni, UAIDcol, startcol, mortcol, yearstart, yearend,
  seasons, winterstart, winterend, cause, plot, title, grossweightcol,
  maxthickcol, bcscol, seasoncol)

`data`	database with age column in it
`uni`	vector of unique ids in which survival should be calculated
`UAIDcol`	column where aids live
`startcol`	name of column where capture date lives
`mortcol`	name of column where mortality date lives
`yearstart`	path to study area polygon (where you want to define availability)
`yearend`	path to where predicted RF map should be written
`seasons`	duh
`winterstart`	duh
`winterend`	duh
`cause`	duh
`plot`	duh
`title`	duh
`grossweightcol`	name of column where gross weight is stored
`maxthickcol`	name of column where max thickness is stored
`bcscol`	name of column where bcs is stored
`seasoncol`	name of column where season (Fall/Spring) is located