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What is the file and variable naming convention?

Most variables have a mnemonic name. Variables begin with a prefix designating the wave of data collection (“a_” for the first wave, “b_” for the second wave, etc.). “W_” is used generically to refer to any wave. Many derived variables are shown by the suffix ‘_dv’. These include variables copied over from one file to another for analytic convenience, variables that categorise a particular variable, e.g., age category; variables that combine information from multiple variables, e.g., body mass index from self reported height and weight. Information about how the derived variable is produced is shown in the notes for derived variables in the detailed variable view of the UKHLS on-line documentation

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