TY - RPRT A1 - Ridgeway, G. A1 - McCaffrey, D. A1 - Morral, A. A1 - Burgette, L. A1 - Pane, J. A1 - Griffin, B.A. T1 - Toolkit for weighting and analysis of nonequivalent groups: A tutorial for the twang package Y1 - 2021 UR - https://www.rand.org/pubs/tools/TLA570-5.html PB - RAND Corporation CY - Santa Monica, CA ER -