.-
help for ^lfsum ^lfsummvl lfuni lftabl lfdes^
.-
Descriptive command after search of fragments of variable names
-----------------------------------------------------------------
^lfsum string_fragments_to_include, string_fragments_to_exclude^
^lfsummvl string_fragments_to_include, string_fragments_to_exclude^
^lfuni string_fragments_to_include, string_fragments_to_exclude^
^lftabl string_fragments_to_include, string_fragments_to_exclude^
^lfdes string_fragments_to_include, string_fragments_to_exclude^
Description
-----------
The ^lf^ series of programs are based on simple modifications of the
official Stata ^lookfor^ command. The purpose of this command
is to allow users to describe variously a subset of variables based
on 1 or more characters in the variable name. This is useful when the
variables of interest have certain characters in common but those
characters do not begin the variable name. The ^lf^ series also
allows strings to be excluded.
Options
-------
string_fragments_to_exclude
Examples
--------
. lfsum ara
Variable | Obs Mean Std. Dev. Min Max
---------+-----------------------------------------------------
aramisyn | 6608 .6301453 .4828017 0 1
carafate | 275 1 0 1 1
caratime | 275 4.770909 1.914759 1 6
carastop | 48 14251.6 106.0624 13932 14387
st_caraf | 275 .7636364 .4256226 0 1
caradose | 11571 17.28792 128.4147 0 1000
carasdat | 57 14247.49 129.3099 13895 14410
aravtime | 3339 3.831686 2.040146 0 6
arastop | 436 14327.7 56.11732 14083 14568
arava | 3339 1 0 1 1
starava | 3339 .7891584 .4079672 0 1
aravdose | 14701 4.541868 8.378948 0 20
arasdat | 1675 14311.15 75.31641 14076 14561
We are interested in all variables pertaining to the drug ^Arava.^
-lfsum ara- identifies all variables with the string "ara"
including variables we don't want.
. lfsum ara, cara aram
Variable | Obs Mean Std. Dev. Min Max
---------+-----------------------------------------------------
aravtime | 3339 3.831686 2.040146 0 6
arastop | 436 14327.7 56.11732 14083 14568
arava | 3339 1 0 1 1
starava | 3339 .7891584 .4079672 0 1
aravdose | 14701 4.541868 8.378948 0 20
arasdat | 1675 14311.15 75.31641 14076 14561
-lfsum ara, cara aram- excludes all variables containing
"cara" and "aram"
lfsummvl ara, cara aram
lfdes ara age sex
Authors
-------
Modified by Fred Wolfe from Stata's ^lookfor^
Also see
--------
Manual: ^[R] lookfor^
On-line: help for @lookfor@ @dellist@ @summarize@ @summvl@ @tabl@
@univar@ @describe@