Usage
BD>option all
BD>option all+
BD>show (all )
BD>show (all+ )
When the all and all+ options are used with the
OPTION: command, they are used to enable or disable quickly all
adjustment output options. When used with the SHOW: command,
they display all available output for the current adjustment. The
pathsum option is treated somewhat differently in that it is
excluded from the list of options for these purposes.
The bcd and bcd+ options are used to control the
appearance of directions as well as corresponding variance quantities
for the comparison of beliefs offered by the COMPARE: command.
BD>option datawarn+
BD>option -datawarn
The datawarn and datawarn+ options are used to output
details of data inconsistencies, if any, as they arise during
adjustments. Suppose that the data quantities
The echo option can used to echo all [B/D] commands to the
screen. Its main use is to keep track of the commands being obeyed
during a macro. For the WINDOWS version, it
also displays the memory available at the commencement of the
current command.
The eig and eig+ options are used to output the
eigenstructure determined using an EIGEN: command. The
eigenvalues are obtained by using the option eig , and both
eigenvalues and eigenvectors are obtained by using the option
eig +.
The eigadd option is used in conjunction with the
ADJUST: , SCAN: , EIGEN: and INVERT:
commands. It has two roles. Firstly, it determines whether diagnostic
aid is displayed in the case of the detection of negative eigenvalues.
For most purposes we require a matrix
It is the case that [B/D] needs to make judgements
about the ranks of several matrices (assumed non-negative definite). The
nature of the routines here is that very small eigenvalues can represent
inaccurately determined eigenvalues which should equal zero. Thus, we
take any eigenvalue smaller than a given threshhold to be equal to zero.
The threshhold used is a small fraction of the euclidian norm of the
subject matrix. The second function of the eigadd option is to
report the value of the threshhold and display all eigenvalues smaller
than it in the case where [B/D] judges the rank of the matrix to be
smaller than its dimension.
BD>option influence
BD>option -influence
The influence option permits the interactive construction of
influence diagrams during adjustments being performed with the
ADJUST: command.
Note that the overwrite control can be used to superimpose
successive influence diagrams from a sequence of adjustments, and the
overshade control can then be used to control the type of
shading resulting from partial adjustments.
BD>option pcdiag
BD>option -pcdiag
The pcdiag option is used only as a switch to determine whether
or not the partial correlation diagram is produced when the
PCDIAG: command is issued.
The scorr option is used as a switch to determine whether a
correlation matrix is produced for the data carriers supplied as
the arguments to a SUMMARY: command. See also the scov
option, which yields sample covariances.
The scov option is used as a switch to determine whether a
covariance matrix is produced for the data carriers supplied as
the arguments to a SUMMARY: command. See also the scorr
option, which yields sample correlations.
The warn option is used to switch on or off the display of
warning messages. Error messages are always displayed.
switches on all standard
adjustment-output options except the pathsum option.
switches on all of the standard and extended
adjustment output options except the pathsum option.
displays all standard
output for the current adjustment.
displays all standard and extended
output for the current adjustment.
Usage
Usage switch on the output of
details of data inconsistencies, if any, together with linear
combinations.
switch off the output of
details of data inconsistencies.
for an adjustment
are observed to be 
. These data are inconsistent with the beliefs
specified beforehand if, for any linear combination 
,
we have 
and 
. If
the datawarn+ option is switched on, both the values of
and the linear combination 
are reported.
Otherwise only the value of the discrepancy from zero is reported. Such
discrepancies usually cause errors, but instead a warning can be
reported if the datawarn control is used.
Usage
Usage
Usage 
to be non-negative
definite. When the eigensystem determination algorithm within [B/D]
detects negative eigenvalues beyond a certain threshhold, and when this
option is enabled, a matrix 
is displayed such that the matrix
is non-negative definite.
Usage enable interactive output of
influence diagrams during adjustments.
disable interactive output of
influence diagrams during adjustments.
Usage enable interactive output of
partial correlation diagrams.
disable interactive output of
partial correlation diagrams.
Usage
Usage
Usage