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  "Description": "Local linear estimation of psychometric functions.\nProvides functions for nonparametric estimation of a\npsychometric function and for estimation of a derived threshold\nand slope, and their standard deviations and confidence\nintervals.For more details see Zychaluk and Foster (2009)\n<doi:10.3758/APP.71.6.1414> and Foster and Zychaluk (2007)\n<doi:10.1109/MSP.2007.4286564>.",
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