Creates a new Section Analysis.
"sectionAnalyses_var" is a variable referencing a SectionAnalyses object. | 
        
"sectionAnalyses_var" is a variable referencing a SectionAnalyses object. | 
        
| Type | Description | 
| SectionAnalysis | Returns the new SectionAnalysis object if successful. | 
| Name | Type | Description | 
| input | SectionAnalysisInput | A SectionAnalysisInput object that defines how the section analysis should be created. Use the createInput method to create a new SectionAnalysisInput object. |