Data Item _cell.pdbx_esd_method
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General 
- Item name
- _cell.pdbx_esd_method
- Category name
- cell
- Attribute name
- pdbx_esd_method
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
How the estimated standard deviation was determined.
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| population | Standard deviation from a population of many crystals, for example from serial crystallography |
| propagated | Propagated error from several crystals |
| refined | Errors are derived from a refined fit of the cell parameters to the data and represent the precision of that fit |
| scan varying | Error using a scan varying restraint across the crystal as a whole |
| single crystal | ESD for a single crystal |
| window | ESD from measuring the unit cell using a moving window across many frames |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| population | Standard deviation from a population of many crystals, for example from serial crystallography |
| propagated | Propagated error from several crystals |
| refined | Errors are derived from a refined fit of the cell parameters to the data and represent the precision of that fit |
| scan varying | Error using a scan varying restraint across the crystal as a whole |
| single crystal | ESD for a single crystal |
| window | ESD from measuring the unit cell using a moving window across many frames |
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _cell.angle_alpha_esd | associated_value |
| _cell.angle_beta_esd | associated_value |
| _cell.angle_gamma_esd | associated_value |
| _cell.length_a_esd | associated_value |
| _cell.length_b_esd | associated_value |
| _cell.length_c_esd | associated_value |
Subcategories
| Subcategory Name | Subcategory Description |
|---|---|
| cell_angle_esd | The collection of estimated standard deviations of the alpha, beta, and gamma angles of a unit cell. |