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Divider Lines with TableHeadings?

• To: mathgroup at smc.vnet.net
• Subject: [mg83040] Divider Lines with TableHeadings?
• From: AES <siegman at stanford.edu>
• Date: Thu, 8 Nov 2007 06:12:23 -0500 (EST)
• Organization: Stanford University

I don't like the divider line that is inserted under the column labels 
if you Print or display a table using the TableHeadings option.  It 
crowds down too tightly on the first row of tabular data, at least for 
my visual taste.

I also don't find any documentation of where this line comes from, at 
least in a quick search of the Help system.

But a little experimentation shows that if you use

   TableForm[ Prepend[ myTable, { } ], 
      TableHeadings -> {None, {myColumnLabels}} ]

the horizontal divider line disappears -- and you get a single blank 
line between the column headings and the tabular data, which generally 
looks pretty good.