[Norman Hovda (991209.1600)]
From [ Marc Abrams (991209.1725) )
Rick, Could you please respond to Bruce Nevin's post (991209.1024
EST)] and the points he raises about your spreadsheet model and the
complexity of what is trying to be described.and discussed?
Yes and yes.
Is this the same file as I d/l'd weeks ago called:
If not what's different? They sure look like dupes.
Your readme file says it only works in Excel 2 and 5. It seems to
function in 97? Or is there a problem I don't "see" here?
from your read me file you state:
"... Systems at the first (lowest) level control intensities; systems
at the second level control sensations (linear combinations of
intensities) and... "
Ok to here and then you say,
"systems at the their level control logical relationships between
Third level? Hmmm... Yet you seem to have skipped over
configuration et.al. jumping to relationship? Help!
And you continue... "A detailed description of what you see in the
spreadsheet can be found in a paper called "Spreadsheet analysis
of a hierarchical control model of behavior" by R. Marken which
was published in "Behavior Research Methods, Instruments &
Computers", 22, 349 - 359, 1990 and is reprinted in "Mind
Readings" by R. Marken which is available from New View
Publications, P.O Box 3021, Chapel Hill, NC 27515-3021"
How "detailed"? Specific examples of raw data from real life
situations plugged into your hierctrl.xls spreadsheet, etc?
How much it cost and what's the quickest way to order? Phone?
In your student example you state:
"For example, change the reference value in cell F7 to a constant,
like 50. This control system, at level two of the hierarchy model,
is now _commited_ to keeping the perception it is controlling
at 50; and you will see that the system will be able to do
this successfully; the perceptual variable (in cell F8) is
brought to and maintained at 50, protected from disturbance.
The system keeps its commitment."
Worked like a charm.
You go on to say, "But you will also find that some of the level
three systems (the ones in rows 3 through 5) can no longer keep
the perceptual variables they control (the values in row 4) matching
the references for these perceptions (the values in row 5)."
For my Excel 97 the values in row 4 don't seem to change at all
with the constant of 50. Average error goes up and the values
flicker a bit but I'm not seeing what you describe. Could my
using Excel 97 be part of the problem?