For the HathiTrust catalog's 6,046,746 bibs and looking at only the lengths
of the subfields $a and $b in 245s, I get an average length of  62.0


On Wed, Oct 16, 2013 at 3:24 PM, Kyle Banerjee <[log in to unmask]>wrote:

> 245 not including $c, indicators, or delimiters, |h (which occurs before
> |b), |n, |p, with trailing slash preceding |c stripped for about 9 million
> records for Orbis Cascade collections is 70.1
>
> kyle
>
>
> On Wed, Oct 16, 2013 at 12:00 PM, Karen Coyle <[log in to unmask]> wrote:
>
> > Thanks, Roy (and others!)
> >
> > It looks like the 245 is including the $c - dang! I should have been more
> > specific. I'm mainly interested in the title, which is $a $b -- I'm
> looking
> > at the gains and losses of bytes should one implement FRBR. As a hedge,
> > could I ask what've you got for the 240? that may be closer to reality.
> >
> > kc
> >
> >
> > On 10/16/13 10:57 AM, Roy Tennant wrote:
> >
> >> I don't even have to fire it up. That's a statistic that we generate
> >> quarterly (albeit via Hadoop). Here you go:
> >>
> >> 100 - 30.3
> >> 245 - 103.1
> >> 600 - 41
> >> 610 - 48.8
> >> 611 - 61.4
> >> 630 - 40.8
> >> 648 - 23.8
> >> 650 - 35.1
> >> 651 - 39.6
> >> 653 - 33.3
> >> 654 - 38.1
> >> 655 - 22.5
> >> 656 - 30.6
> >> 657 - 27.4
> >> 658 - 30.7
> >> 662 - 41.7
> >>
> >> Roy
> >>
> >>
> >> On Wed, Oct 16, 2013 at 10:38 AM, Sean Hannan <[log in to unmask]> wrote:
> >>
> >>  That sounds like a request for Roy to fire up the ole OCLC Hadoop.
> >>>
> >>> -Sean
> >>>
> >>>
> >>>
> >>> On 10/16/13 1:06 PM, "Karen Coyle" <[log in to unmask]> wrote:
> >>>
> >>>  Anybody have data for the average length of specific MARC fields in
> some
> >>>> reasonably representative database? I mainly need 100, 245, 6xx.
> >>>>
> >>>> Thanks,
> >>>> kc
> >>>>
> >>>> --
> >>>> Karen Coyle
> >>>> [log in to unmask] http://kcoyle.net
> >>>> m: 1-510-435-8234
> >>>> skype: kcoylenet
> >>>>
> >>>
> > --
> > Karen Coyle
> > [log in to unmask] http://kcoyle.net
> > m: 1-510-435-8234
> > skype: kcoylenet
> >
>



-- 
Bill Dueber
Library Systems Programmer
University of Michigan Library