# Results
Results are produced for analysis stages in the same way as for whole model analysis. Values of zero are stored for nodes and elements that are inactive for the stage.
Results are not output for inactive nodes and elements where this is reasonable, though records representing that data are reported if, say, output is requested for several cases and the node or element is active in some of the cases.
When combining results from different analysis stages there are circumstances in which it is inappropriate to output the combined values. The following restrictions apply.
- Combined element stress and force results (and results derived from these) are not output when the geometric properties of the element differ for any of the analysis cases being combined. For this purpose geometric properties are deemed to differ:
- If any Beam Section description differs or if any modification factor, other than a shear factor modification factors, differs.
- If any 2D Element Property thickness differs.
- If any Link Property linkage differs.
respectively. Properties for other element types are not checked for consistency and are deemed not to differ. Note that the material is not checked for consistency so these results will be combined even if any material differs.
- Combined reactions are not output when the restraint condition differs for any of the analysis cases being combined.
- Combined rigid constraint, joint and constraint equation forces are always output regardless of whether the constraint condition for the node differs for the analysis cases being combined.
Result envelopes are not output when the result for any contributing permutation is not calculated for any of the reasons stated above.
In staged analysis combined 2D element stresses and forces are not averaged across elements when the geometric property (i.e. thickness) or material differs for either element being considered for any of the analysis cases being combined.
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