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NESTPRESERVE: Stata module to preserve, inspect, and restore multiple nested dataset states

Author

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  • Hao Ma

Programming Language

Abstract

nestpreserve provides a disk-backed, last-in–first-out stack of dataset-state checkpoints. It allows each Stata frame to save, inspect, and restore multiple analytical states while enforcing frame ownership and restoration order. The module automatically records checkpoint dimensions, variable and observation changes, dataset signatures, and transaction history. nesttransaction: runs a command and automatically rolls back its dataset changes after either success or failure. nestrecover and nestclear provide fail-closed recovery and cleanup after a Stata process ends, acting automatically only when exactly one intact abandoned checkpoint stack is identified and its originating process is proven dead. Ambiguous, live, corrupt, legacy, or otherwise unverifiable candidates are not modified automatically. The module manages the dataset state rather than the complete Stata session.

Suggested Citation

  • Hao Ma, 2026. "NESTPRESERVE: Stata module to preserve, inspect, and restore multiple nested dataset states," Statistical Software Components S459874, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s459874
    Note: This module should be installed from within Stata by typing "ssc install nestpreserve". The module is made available under terms of the MIT license (https://opensource.org/licenses/MIT).
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestpreserve.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestpreserve.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestclear.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestclear.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestpreserve-process.jar
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestrecover.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestrecover.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestrestore.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nestrestore.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/n/neststatus.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/n/neststatus.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nesttransaction.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/n/nesttransaction.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/_/_nestpreserve_audit.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/_/_nestpreserve_manifest.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/_/_nestpreserve_process.ado
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