whatsnew8_1.hlp

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{smcl}
{* 01apr2005}{...}
{cmd:help whatsnew8_1}
{hline}

{title:Additions made to Stata during version 8.1}

{pstd}
This file records the additions and fixes made to Stata during the 8.1 release:

    {c TLC}{hline 67}{c TRC}
    {c |} help file       contents                   dates                  {c |}
    {c LT}{hline 67}{c RT}
    {c |} {help whatsnew}        Stata 9.0                  22apr2005 to present   {c |}
    {c |} {help whatsnew8to9}    Stata 9.0 new release      22apr2005              {c |}
    {c |} {help whatsnew8_2}     Stata 8.2                  28oct2003 to 24feb2005 {c |}
    {c |} {bf:this file}       Stata 8.1                  01jul2003 to 30sep2003 {c |}
    {c |} {help whatsnew8_0}     Stata 8.0                  14jan2003 to 25jun2003 {c |}
    {c |} {help whatsnew7to8}    Stata 8.0 new release      02jan2003              {c |}
    {c |} {help whatsnew7}       Stata 7.0                  08jan2001 to 05dec2002 {c |}
    {c |} {help whatsnew6to7}    Stata 7.0 new release      15dec2000              {c |}
    {c |} {help whatsnew6}       Stata 6.0                  13jan1999 to 20nov2000 {c |}
    {c BLC}{hline 67}{c BRC}

{pstd}
Most recent changes are listed first.


{hline 8} {hi:more recent updates} {hline}

{pstd}
See {help whatsnew8_2}.


{hline 8} {hi:update 30sep2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* enhancement}
1.  {help dotplot} now uses the variable format for the y axis if it is common
    among all the specified variables.

{p 5 9 2}
{* enhancement}
2.  {help lincom} after {help svy:svy estimation} now saves the degrees of
    freedom in {cmd:r(df)}.

{p 5 9 2}
{* fix}
3.  {help lnskew0}'s {dialog lnskew0:dialog} has been redesigned to better
    handle the {cmd:level()} option.  Previously, {cmd:level(95)} was ignored
    while other values of {cmd:level()} were accepted.

{p 5 9 2}
{* enhancement}
4.  {help sunflower} is a new command that produces sunflower
    density-distribution plots; see help {help sunflower}.  This command is
    based on earlier work by William D. Dupont and W. Dale Plummer, Vanderbilt
    University, who provided helpful suggestions for this version.

{p 5 9 2}
{* fix}
5.  Dates containing spaces, slashes, or commas must be bound in parentheses
    when specified in the time-axis {help graph} options {cmd:tscale()},
    {cmd:tlabel()}, {cmd:tmlabel()}, {cmd:ttick()}, {cmd:tmtick()}, and
    {cmd:ttext()}; see help {help datelist}.


{hline 8} {hi:update 26sep2003} {hline}

    {title:Stata executable, Macintosh only}

{p 5 9 2}
{* enhancement}
1.  Stata's update feature has been modified to handle the download and
    extraction of Mac OS X Application Packages.  Future updates to Stata will
    ship as a Mac OS X Application Package rather than as a single executable.
    The advantages of this format include faster startup, better performance,
    and the ability to download future Stata updates as a compressed file
    making updating faster.

{p 5 9 2}
{* fix}
2.  In some cases, Stata crashed if run in batch mode; this has been fixed.

{p 5 9 2}
{* fix}
3.  {help macro:Extended macro function} {cmd:dir} did not recognize {cmd:~/}
    to mean the user's home directory; this has been fixed.


{hline 8} {hi:update 15sep2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* fix}
1.  {help graph_bar:graph hbar} and {cmd:graph bar, horizontal} after the
    12sep2003 update produced an error message when the {cmd:text()} option
    was specified; this has been fixed.

{p 5 9 2}
{* fix}
2.  {help xtline} now documents option {cmd:overlay} which replaces
    {cmd:overlayed}.


{hline 8} {hi:update 12sep2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* enhancement}
1.  {help graph_twoway:graph twoway} has two new {it:plottypes} for plotting
    time-series data, {cmd:tsline} and {cmd:tsrline}; see help {help tsline}.
    Also, all {it:plottypes} automatically produce better label and tick
    values for variables having {help dfmt:date formats} or
    {help tfmt:time-series formats}.

{p 5 9 2}
{* enhancement}
2.  {help graph_twoway:graph twoway} has seven new options useful when plotting
    time-formatted variables:  {cmd:tscale()}, {cmd:tlabel()},
    {cmd:tmlabel()}, {cmd:ttick()}, {cmd:tmtick()}, {cmd:tline()}, and
    {cmd:ttext()}; see help {help axis_options}, {help added_line_options} and
    {help added_text_options}.  With these options you may directly specify
    date literals, such as {cmd:12sep2003} or {cmd:1990q2} to identify
    positions.

{p 5 9 2}
{* enhancement}
3.  {help xtline} is a new command for plotting panel data; see help
    {help xtline}.  {cmd:xtline} allows either overlaid or separate graphs to
    be produced, by panel.


{hline 8} {hi:update 09sep2003} {hline}

{p 4 4 2}
The 09sep2003 executable and ado update includes 45 changes and improvements.
We recommend you read the entire numbered list below.
Highlights include,

{p 9 12 2}
   o{space 2}Stata can now read and write files in the format required by the
    U.S. Food and Drug Administration (FDA) for new drug and device
    applications (NDAs).  {bind:See #13} below and see help {help fdasave}.

{p 9 12 2}
   o{space 2}Stata now allows multiple variable, value, and data labels, such
    as labels in different languages;
    {bind:see #22} below and see help {help label_language}.

{p 9 12 2}
   o{space 2}Stata now has multiple-comparison tests after {help anova} and
    {help manova}.  In addition, specifying contrasts is now easier.
    {bind:See #28} below and see help {help anova postestimation:testanova}
    and help {help manovatest}.

{p 9 12 2}
   o{space 2}A new file-editing/file-filtering command makes it possible to
    replace one set of characters with another; this may be done on
    files of unlimited size and on both binary and ASCII files.
    {bind:See #14} below and see help {help filefilter}.

{p 9 12 2}
   o{space 2}Stata now supports TIFF files; see #16 and #17 below and see help
    {help graph_export}.

{p 9 12 2}
   o{space 2}Under Stata for Windows, the Review and Variable windows may
    now be moved together with the main Stata window by holding Ctrl
    while dragging the main Stata window with the mouse; {bind:See #31}
    below.


    {title:Ado-files, all platforms}

{p 5 9 2}
{* enhancement}
1.  Online help and search index brought up to date for
    {help sj:Stata Journal 3(3)}.

{p 5 9 2}
{* enhancement}
2.  {help cf} is now faster.  The improvement results from code provided by
    David Kantor, Institute for Policy Studies, Johns Hopkins University.

{p 5 9 2}
{* fix}
3.  {help graph} color setting options, such as {cmd:mcolor(red*.3)},
    {cmd:color(blue*.5)}, and {cmd:lcolor(navy*.8)}, that used the
    {cmd:*}{it:#} syntax to change the intensity of a named color would cause
    that intensity change to stick.  For example, after option
    {cmd:mcolor(red*.3)} was specified, the color {cmd:red} would be shown as
    a light red in all subsequent graph commands until {help clear} or
    {help discard} was typed to reset the graph system.  This has been fixed.

{p 5 9 2}
{* fix}
4.  {help graph_bar:graph bar} and {help graph_box:graph box} now respect the
    {cmd:blpattern()} suboption of the {cmd:bar()} option.

{p 5 9 2}
{* fix}
5.  {help graph_box:graph box} would not plot outside values when the
    interquartile range was zero; this has been fixed.

{p 5 9 2}
{* fix}
6.  {help graph_twoway:graph twoway} options {cmd:connect()} and
    {cmd:cmissing()} would "stick" when specified.  That is to say subsequent
    graphs would be drawn as though the option were specified, even if it were
    not.  This has been fixed.

{p 5 9 2}
{* fix}
7.  {help sts:sts graph, hazard}, when used with {cmd:by()}, would graph
    estimated hazards over the range of observed failures for the entire data.
    As a result, the graphs produced were sometimes misleading, since the
    smoothed hazard estimate for a particular {cmd:by()} group is valid only
    over the failure range for that group.  {cmd:sts} now graphs the estimated
    hazard over the failure range for each group.

{p 5 9 2}
{* fix}
8.  {help tabstat} documented and computed {cmd:statistics(cv)} as
    variance/(mean^2).
    {cmd:tabstat} now documents and computes it as sd/mean to match the
    standard definition for the coefficient of variation.

{p 5 9 2}
{* fix}
9.  {help tabstat} misaligned the header if a value less than 8 was specified
    in {cmd:varwidth()}; this has been fixed.

{p 4 9 2}
{* fix}
10.  {help varsoc} failed when using pre-estimation syntax if {cmd:maxlags()}
     was not specified; this has been fixed.


    {title:Stata executable, all platforms}

{p 4 9 2}
{* fix}
11.  {help classexit:class exit} issued an error message if a number with a
     leading decimal point was specified as the return value, e.g., .456.
     This led to error messages and failure to draw graphs if any text to be
     drawn were smaller than 1 unit, typically for very small fonts or text
     with a single narrow character such as "i".  This has been fixed.

{p 4 9 2}
{* fix}
12.  {help cldis:cluster dissimilarity} option {cmd:Hamann} has been added as
     the preferred alias for the previously documented {cmd:Hamman}.  The
     correct spelling is with two {it:n}s and one {it:m}.
     Both spellings are now allowed.

{p 4 9 2}
{* enhancement}
13.  {help fdasave}, {help fdause}, and {help fdadescribe} are new commands
     for saving and using files in the format required by the U.S. Food and
     Drug Administration (FDA) for new drug and device applications (NDAs).
     These commands are designed to assist people making submissions to the
     FDA, but the commands are general enough for use in transferring data
     between SAS and Stata.  The FDA format is identical to the SAS XPORT
     Transport format; see help {help fdasave}.

{p 4 9 2}
{* enhancement}
14.  {help filefilter} is a new command for copying an input file to an output
     file while converting a specified ASCII text or binary pattern to another
     pattern; see help {help filefilter}.

{p 4 9 2}
{* enhancement}
15.  {help graph} now produces better label and tick values for variables
     having a {help dfmt:date formats} or {help tfmt:time-series formats}.

{p 4 9 2}
{* enhancement}
16.  {help graph_export:graph export} now supports TIFF files.  The files are
     limited to the resolution of the display device and the size of the Graph
     window.  When a TIFF file is exported using an 8-bit display device, the
     TIFF file will be in 8-bit format.

{p 4 9 2}
{* enhancement}
17.  {help graph_export:graph export} now supports TIFF previews for EPS files
     through the {cmd:preview(on)} option; the graph window must be open so
     that it can be used to create the preview.

{p 4 9 2}
{* fix}
18.  EPS files produced by {help graph_export:graph export} did not print
     properly when placed in some Adobe applications such as PageMaker and
     InDesign, although they would print and could be viewed by other