STAR*NET V6 - Circe

General Options
Chapter 4 Options
The General options dialog includes “preference” type settings that are very general in
nature that you will seldom need to change during the life of a job.
Option Group: Adjustment Solution
Convergence Limit – When the change in the sum of the squares of the standardized
residuals from one iteration to the next is less than the Convergence Limit, the
adjustment has converged, and iterations stop. This means that all coordinates have
been adjusted into their “best-fit” positions, and are not changing. A setting of 0.01
normally gives coordinates unchanged to four places. A smaller value may make
your coordinates unchanged to an extra decimal place, but may also cause extra
iterations. Just because your adjustment converges does not necessarily mean that
you have a good solution. See Chapter 8, “Analysis of Adjustment Output,” for more
details.
Maximum Iterations - This sets a maximum number of iterations that may be
performed during an adjustment. Iterations stop when the Convergence Limit is
satisfied, however if convergence is not reached for one reason or another, this
provides a stopping point. A value of 10 is usually sufficient, but you may need to try
a larger number if your project will not converge. Setting a large number does not
necessarily mean that your adjustment will converge because other problems in the
network data may prevent a proper solution. In this case, these problems must be
found and corrected!
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