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Messages - Obect1980

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The selection of ground motion time histories for each realization is determined by the UQ methodology you've chosen and the settings you've specified. In your case, you mentioned using NearestNeighbor with 5 samples and 4 neighbors. If you've specified 5 samples in the UQ tab, this corresponds to the number of different sets of input parameters that will be sampled. If you're using NearestNeighbor with 4 neighbors, this means that for each sampled set of parameters, the code will select the nearest 4 ground motion time histories from your EventGrid based on some similarity metric. These 4 selected ground motion time histories will then be used for that particular realization of structural response. mcdvoice

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