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  • New version of parmhet on SSC

    Thanks as always to Kit Baum, a new version of the parmhet package is now available for download from SSC. In Stata, use the ssc command to do this, or adoupdate if you already have an old version of parmhet.

    The parmhet package is described as below on my website. The new version has been updated to Stata Version 16, and has a frame() option, enabling the resultsset to be saved to a data frame, like my other resultsset-generating commands.

    Users of Stata Versions 10 to 15 can still download the old Stata 10 version of parmhet from my website by typing, in Stata,

    net from https://www.rogernewsonresources.org.uk/stata10

    and selecting and downloading parmhet.

    Best wishes

    Roger

    -----------------------------------------------------------------------------------------------------------------------------------------------------------
    package parmhet from https://www.rogernewsonresources.org.uk/stata16
    -----------------------------------------------------------------------------------------------------------------------------------------------------------

    TITLE
    parmhet: Heterogeneity tests in parmest resultssets

    DESCRIPTION/AUTHOR(S)
    parmhet and parmiv are designed for use with parmest resultssets,
    which have one observation per estimated parameter and data on
    parameter estimates. parmhet inputs variables containing parameter
    estimates, standard errors and (optionally) degrees of freedom, and
    outputs an output dataset (or resultsset) with one observation, or one
    observation per by-group, and data on heterogeneity test statistics on
    the input parameters in the dataset or by-group. The output dataset
    can be listed to the Stata log, saved to a data frame, saved to a disk
    file, or written to memory, overwriting the existing dataset.
    Optionally, parmhet may also add variables to the existing dataset,
    containing inverse-variance weights and/or semi-weights and/or
    semi-weight-based standard errors. These additional variables may
    then be input to the metaparm module of the parmest package, to
    produce summary meta-analysed parameter estimates, using the
    fixed-effect method or the DerSimonian-Laird randomly-variable-effect
    method. parmiv is a routine intended for use by programmers, and
    inputs variables containing estimates, standard errors and
    (optionally) degrees of freedom, and outputs additional variables in
    the existing dataset, containing inverse-variance weights and/or
    semi-weights and/or semi-weight-based standard errors and/or
    heterogeneity test statistics for the dataset or by-group.

    Author: Roger Newson
    Distribution-Date: 16november2025
    Stata-Version: 16

    INSTALLATION FILES (click here to install)
    parmhet.ado
    parmiv.ado
    parmhet.sthlp
    parmhet_basic_opts.sthlp
    parmhet_resultsset_opts.sthlp
    parmhet_hettest_opts.sthlp
    parmhet_resultsset.sthlp
    parmiv.sthlp

    ANCILLARY FILES (click here to get)
    parmhet_example1.dta
    -----------------------------------------------------------------------------------------------------------------------------------------------------------
    (click here to return to the previous screen)

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