{"collection":"grad-noise-175k","coord":"t19_x21_u4_b42","data":{"index":154960,"ordinal":"155140686","topo":"o2(x,o2(o1(x),x))","expression":"div(R,dot(cil(D),P))","image":"frame_expr-154960.png","measured":true,"step":119687,"globalStep":119687,"value_mean":-0.171875,"value_positive_fraction":0.4140625,"value_abs_mean":1,"value_variance":0.9711874127388,"value_stddev":0.9854884147644043,"value_min":-1,"value_max":1,"value_range":2,"histogram_probability_sum":1,"histogram_entropy_bits":0.9785845279693604,"gradient_energy_x":0.09851348400115967,"gradient_energy_y":0.11690602451562881,"gradient_magnitude_mean":0.10682425647974014,"gradient_axis_bias":-0.08538010716438293,"gradient_nonzero_flag":1,"laplacian_mean":0,"laplacian_energy":0.45452257990837097,"laplacian_abs_mean":0.21541951596736908,"gradient_magnitude_variance":0.20405565202236176,"gradient_magnitude_stddev":0.45172518491744995,"gradient_magnitude_cv":4.2286763191223145,"gradient_magnitude_max":2.8284270763397217,"gradient_energy_over_variance":0.22181043028831482,"laplacian_energy_over_variance":0.46800708770751953,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0.20465373992919922,"scale_diff2_mid":0.8448753356933594,"scale_diff2_far":1.7349584102630615,"scale_diff2_near_over_variance":0.21072527766227722,"scale_diff2_mid_over_variance":0.8699405789375305,"scale_diff2_far_over_variance":1.7864301204681396,"value_histogram":[[[0.5859375,0.5859375,0.5859375],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0.4140625,0.4140625,0.4140625]]],"scale_curve":[[[0.015625,0.20465373992919922,0.21072527766227722],[0.0625,0.8448753356933594,0.8699405789375305],[0.25,1.7349584102630615,1.7864301204681396]]]},"renderer":1,"first_seen":"2026-09-23T00:00:00.000Z","last_seen":"2026-09-23T00:00:00.000Z","sightings":[{"at":"2026-09-23T00:00:00.000Z","data":null}],"axes":"[\"19\",\"21\",\"4\",\"42\"]"}