Data quality metrics extracted from 4y20.cif.gz by aB_cif2table1 from BUSTER (Global Phasing Ltd.). See also the PDBx/mmCIF dictionary.

Raw JSON data
{
  "mxlims_type": "ReflectionSet",
  "version": "0.2.2",
  "uuid": "486267496fc3fbdbc28eadc2eabd4c28",
  "space_group_name": "P 21 21 21",
  "unit_cell": {
    "a": 42.942,
    "b": 58.345,
    "c": 111.969,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [0.97622],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [30.000,2.200],
    "number_observations": 93161,
    "number_observations_unique": 14339,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.052
      },
      {
        "type": "R(meas)",
        "value": 0.056
      },
      {
        "type": "R(pim)",
        "value": 0.021
      },
      {
        "type": "I/SigI",
        "value": 16.700
      },
      {
        "type": "Completeness",
        "value": 96.700
      },
      {
        "type": "Redundancy",
        "value": 6.500
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [2.280,2.200],
      "number_observations_unique": 1322,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.203
        },
        {
          "type": "R(meas)",
          "value": 0.220
        },
        {
          "type": "R(pim)",
          "value": 0.084
        },
        {
          "type": "Completeness",
          "value": 91.200
        },
        {
          "type": "Redundancy",
          "value": 6.200
        },
        {
          "type": "CC(1/2)",
          "value": 0.988
        }
      ]
    },
    {
      "resolution_limits": [2.370,2.280],
      "number_observations_unique": 1324,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.174
        },
        {
          "type": "R(meas)",
          "value": 0.189
        },
        {
          "type": "R(pim)",
          "value": 0.073
        },
        {
          "type": "Completeness",
          "value": 92.000
        },
        {
          "type": "Redundancy",
          "value": 6.200
        },
        {
          "type": "CC(1/2)",
          "value": 0.989
        }
      ]
    },
    {
      "resolution_limits": [2.480,2.370],
      "number_observations_unique": 1344,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.150
        },
        {
          "type": "R(meas)",
          "value": 0.164
        },
        {
          "type": "R(pim)",
          "value": 0.064
        },
        {
          "type": "Completeness",
          "value": 93.600
        },
        {
          "type": "Redundancy",
          "value": 6.100
        },
        {
          "type": "CC(1/2)",
          "value": 0.990
        }
      ]
    },
    {
      "resolution_limits": [2.610,2.480],
      "number_observations_unique": 1410,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.117
        },
        {
          "type": "R(meas)",
          "value": 0.128
        },
        {
          "type": "R(pim)",
          "value": 0.050
        },
        {
          "type": "Completeness",
          "value": 95.700
        },
        {
          "type": "Redundancy",
          "value": 6.000
        },
        {
          "type": "CC(1/2)",
          "value": 0.994
        }
      ]
    },
    {
      "resolution_limits": [2.770,2.610],
      "number_observations_unique": 1422,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.084
        },
        {
          "type": "R(meas)",
          "value": 0.091
        },
        {
          "type": "R(pim)",
          "value": 0.036
        },
        {
          "type": "Completeness",
          "value": 97.100
        },
        {
          "type": "Redundancy",
          "value": 6.000
        },
        {
          "type": "CC(1/2)",
          "value": 0.997
        }
      ]
    },
    {
      "resolution_limits": [2.990,2.770],
      "number_observations_unique": 1444,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.067
        },
        {
          "type": "R(meas)",
          "value": 0.073
        },
        {
          "type": "R(pim)",
          "value": 0.029
        },
        {
          "type": "Completeness",
          "value": 99.000
        },
        {
          "type": "Redundancy",
          "value": 6.200
        },
        {
          "type": "CC(1/2)",
          "value": 0.998
        }
      ]
    },
    {
      "resolution_limits": [3.290,2.990],
      "number_observations_unique": 1487,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.063
        },
        {
          "type": "R(meas)",
          "value": 0.068
        },
        {
          "type": "R(pim)",
          "value": 0.026
        },
        {
          "type": "Completeness",
          "value": 99.800
        },
        {
          "type": "Redundancy",
          "value": 6.600
        },
        {
          "type": "CC(1/2)",
          "value": 0.998
        }
      ]
    },
    {
      "resolution_limits": [3.760,3.290],
      "number_observations_unique": 1469,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.054
        },
        {
          "type": "R(meas)",
          "value": 0.058
        },
        {
          "type": "R(pim)",
          "value": 0.022
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 7.100
        },
        {
          "type": "CC(1/2)",
          "value": 0.998
        }
      ]
    },
    {
      "resolution_limits": [4.730,3.760],
      "number_observations_unique": 1512,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.034
        },
        {
          "type": "R(meas)",
          "value": 0.037
        },
        {
          "type": "R(pim)",
          "value": 0.014
        },
        {
          "type": "Completeness",
          "value": 98.900
        },
        {
          "type": "Redundancy",
          "value": 7.100
        },
        {
          "type": "CC(1/2)",
          "value": 0.999
        }
      ]
    },
    {
      "resolution_limits": [30.000,4.730],
      "number_observations_unique": 1605,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.029
        },
        {
          "type": "R(meas)",
          "value": 0.032
        },
        {
          "type": "R(pim)",
          "value": 0.011
        },
        {
          "type": "Completeness",
          "value": 99.600
        },
        {
          "type": "Redundancy",
          "value": 7.400
        },
        {
          "type": "CC(1/2)",
          "value": 1.000
        }
      ]
    }
  ]

}
  

Table 1 generated from MXLIMS-JSON (via JavaScript):


Binned data generated from MXLIMS-JSON (via JavaScript):