stressing correlations hi everybody following discussions stressing correlations made spreadsheet dll input main sheet user specify size correlation matrix row column element wants stress row 1 col 3 example integer number n _ iter original correlation matrix output see sheet results see 2 columns first column contains possible correlation values 1 1 n _ iter 1 numbers element 1 3 second column contains smallest eigenvalue stressed correlation matrix original matrix except elements 1 3 3 1 take values 1 1 thus user see values chosen element 1 3 permitted smallest eigenvalue positive marked green example user might decide wants assign correlation permitted particular element smallest eigenvalue negative user might options 1 elements correlation matrix modified chosen element desired correlation change correlation matrix smallest possible sense matrix norm next step spreadsheet 2 one column corresponding row course change rest matrix stay unchanged kevin suggestion case user choose column row prefers modify example column row 1 column row 3 discuss approach risk control see like send spreadsheet example tanya