{smcl} {cmd:help mata elabel_dir()} {hline} {title:Title} {phang} {cmd:elabel_dir()} {hline 2} Obtain lists of value label names {title:Syntax} {p 8 12 2} {it:string colvector} {cmd:elabel_dir()} {p 8 12 2} {it:void}{bind: } {cmd:elabel_dir(}{it:names} [{cmd:,} {it:real scalar mlang}]{cmd:)} {p 8 12 2} {it:void}{bind: } {cmd:elabel_dir(}{it:nonexistent}{cmd:,} {it:orphans}{cmd:,} {it:used} [{cmd:,} {it:real scalar mlang}]{cmd:)} {p 4 10 2} where the types of {it:names}, {it:nonexistent}, {it:orphans}, and {it:used} is irrelevant because they are replaced with {it:string colvectors}. {p 10 10 2} {it:mlang}!=0 respects multilingual datasets (see {help label language}) {title:Description} {pstd} {cmd:elabel_dir()} returns a column vector with all value label names stored in memory. {pstd} {cmd:elabel_dir(}{it:names} [{cmd:,} {it:mlang}]{cmd:)} places in {it:names} a column vector of value labels attached to at least one variable in the dataset, including value labels that are not stored in memory (nonexistent value labels). Value labels in memory that are not used by any of the variables (so-called orphans) are omitted. {it:mlang}=0 restricts nonexisting value labels to those in the current {help label language}. {pstd} {cmd:elabel_dir(}{it:nonexistent}{cmd:,} {it:orphans}{cmd:,} {it:used} [{cmd:,} {it:mlang}]{cmd:)} places in {it:nonexistent} a column vector of value labels that are not stored in memory but attached to at least one variable in the dataset; in {it:orphans} a column vector of value labels that are stored in memory but are not used by any of the variables in the dataste; in {it:used} a column vector of value labels that are stored in memory and used by at least one variable in the dataset. {it:mlang}=0 considers value labels in the current {help label language} only. {pstd} See {helpb mf_elabel_ldir:elabel_ldir()} to obtain a list of label languages. {title:Conformability} {cmd:elabel_dir()} {it:result}: {it:r x} 1 {cmd:elabel_dir(}{it:names}[{cmd:,} {it:mlang}]{cmd:)} {it:input}: {it:names}: {it:r x c} {it:mlang}: 1 {it:x} 1 {it:output}: {it:names}: {it:r x} 1 {cmd:elabel_dir(}{it:nonexistent}{cmd:,} {it:orphans}{cmd:,} {it:used}[{cmd:,} {it:mlang}]{cmd:)} {it:input}: {it:nonexistent}: {it:r x c} {it:orphans}: {it:r x c} {it:used}: {it:r x c} {it:mlang}: 1 {it:x} 1 {it:output}: {it:nonexistent}: {it:r x} 1 {it:orphans}: {it:r x} 1 {it:used}: {it:r x} 1 {title:Diagnostics} {pstd} {cmd:elabel_dir()} is implemented in terms of Stata's {helpb label dir} command. {pstd} {cmd:elabel_dir()} returns {cmd:J(0, 1, "")} if no value labels are in memory. {it:names}, {it:nonexistent}, {it:orphans}, and {it:used} are replaced with {cmd:J(0, 1, "")}, if the respective type of value label does not exist. {title:Source code} {pstd} Distributed with the {cmd:elabel} package. {p_end} {title:Author} {pstd} Daniel Klein{break} University of Kassel{break} klein.daniel.81@gmail.com {title:Also see} {psee} Online: {helpb mata} {p_end} {psee} if installed: {help elabel} {p_end}