NAME: mvn_qlook_vcheck PURPOSE: CHecks to see if data exists for a list of variables. Also will return the overall time range: CALLING SEQUENCE: vlist_ok = mvn_qlook_vcheck(varlist, tr = tr, ok_vars=ok_vars) INPUT: vlist = a list of TPLOT variables, can be anything that can be resolved by TNAMES, scalar or vector, wildcards, etc... OUTPUT: vlist_ok = A cleaned list KEYWORDS: tr = the time range of all of the variables ok_vars = subscripts of the good variables in the input list. blankp = if set, add a blank panel for missing variables HISTORY: jmm, jimm@ssl.berkeley.edu, 21-May-2013 $LastChangedBy: jimm $ $LastChangedDate: 2014-03-26 14:17:04 -0700 (Wed, 26 Mar 2014) $ $LastChangedRevision: 14676 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/quicklook/mvn_qlook_vcheck.pro $