Intensity Measure Selection ########################### The ``imselection`` class evaluates and ranks intensity measures (IMs) using the information-theoretic framework of Ebrahimian & Jalayer (2021). The central metric is the **Relative Sufficiency Measure (RSM)**, expressed in bits: a positive RSM(IM₂ vs IM₁) means IM₂ is the more sufficient IM. Two complementary metrics are also provided — efficiency (βD|IM) and proficiency (βIM|DCR=1). Both Modified Cloud Analysis (MCA) and Incremental Dynamic Analysis (IDA) workflows are supported. .. toctree:: ims/init ims/compute_efficiency_mca ims/compute_efficiency_ida ims/compute_proficiency_mca ims/compute_proficiency_ida ims/compute_rsm_mca ims/compute_rsm_ida ims/compute_rsm_general ims/compare_ims References ---------- 1. Ebrahimian, H. and Jalayer, F. (2021). "Selection of seismic intensity measures for prescribed limit states using alternative nonlinear dynamic analysis methods", *Earthquake Engineering and Structural Dynamics*, 50(5), 1235-1250. https://doi.org/10.1002/eqe.3393 2. Luco, N. and Cornell, C.A. (2007). "Structure-specific scalar intensity measures for near-source and ordinary earthquake ground motions." *Earthquake Spectra*, 23(2), 357–392. 3. Shome, N. and Cornell, C.A. (1999). "Probabilistic seismic demand analysis of nonlinear structures." Report No. RMS-35, Stanford University, Stanford, CA. 4. Padgett, J.E., Nielson, B.G., and DesRoches, R. (2008). "Selection of optimal intensity measures in probabilistic seismic demand models of highway bridge portfolios." *Earthquake Engineering & Structural Dynamics*, 37(5), 711–725.