NEWS

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cfcompare 0.1.0.9006

• Native R implementations of the Triply RObust Panel (TROP) estimator of Athey, Imbens, Qu & Viviano (2026).
• panel_compare() runs DID, SDID, SC, MC, TROP, gsynth and augsynth on one dataset and returns a common tidy ATT schema with shared plots.
• trop_matrix() provides a matrix-in form whose results can be numerically compared with the official Python trop matrix-in signature for direct cross-checking; verified to match the reference to numerical tolerance on the weighted-TWFE special case.* autoplot() on a trop fit now draws the TROP time weights theta_s = exp(-lambda_time * |t - s|) as a filled band along the bottom (synthdid-style), replacing the earlier bar strip, and labels it so the band reads as time weights rather than observation counts. The band is shown for uniform weights too (lambda_time = 0, flat) and can be hidden with show_weights = FALSE.
• compare_se_modes() compares the TROP bootstrap, jackknife and placebo standard errors on a single fit: the cross-validated penalties are chosen once and reused, so the point estimate is identical across rows and only the uncertainty differs (the same fixed-penalty pattern as trop_ablation()).