whatsnew8_0.hlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

{* fix}
12.  {help inbase}, asked to convert 0 to another base such as 2
     ({cmd:inbase 2 0}), would loop endlessly (until break was pressed); this
     is fixed.

{p 4 9 2}
{* fix}
13.  {help lrtest} when run under version control with version less than 8
     would not leave behind the {cmd:r()} results; this is fixed.

{p 4 9 2}
{* fix}
14.  {help mkassert:mkassert rclass, saving()} saved the {cmd:r()} results
     from the command that opened the file instead of the {cmd:r()} results of
     the previous command; this is fixed.

{p 4 9 2}
{* fix}
15.  {help rvfplot} incorrectly exchanged the labels for the {it:x} and {it:y}
     axes; this is fixed.

{p 4 9 2}
{* fix}
16.  {help scatter} with the {cmd:jitter()} option combined with the option
     {cmd:yscale(reverse)} or {cmd:xscale(reverse)} produced a graph with no
     plotted points.  Option {cmd:jitter()} may now be combined with option
     {c -(}{cmd:y}|{cmd:x}{c )-}{cmd:scale(reverse)}.

{p 4 9 2}
{* enhancement}
17.  {help xtabond} now labels the dependent variable in the estimation table
     {cmd:D.}{it:depvar} instead of just {it:depvar}.  Likewise,
     {cmd:e(depvar)} is {cmd:D.}{it:depvar} instead of {it:depvar}.  This
     change was made for consistency with the labeling of the right-hand-side
     variables.

{p 4 9 2}
{* enhancement}
18.  {help xtabond} now saves {cmd:e(bnames_ud)} and {cmd:e(depvar_ud)}.
     {cmd:e(bnames_ud)} is the names of the right-hand-side variables in
     undifferenced form.  {cmd:e(depvar_ud)} is the name of the dependent
     variable in undifferenced form.

{p 4 9 2}
{* fix}
19.  {help xtclog}, which was renamed to {help xtcloglog} in Stata 8, returned
     an {cmd:e(cmd)} or {cmd:e(cmd2)} of "{cmd:xtcloglog}" even when run under
     version control.  It now returns "{cmd:xtclog}" when {help version} is
     set to 7 or less, and "{cmd:xtcloglog}" otherwise.  In all cases, the
     {cmd:xtcloglog} command returns "{cmd:xtcloglog}" in {cmd:e(cmd)} or
     {cmd:e(cmd2)}.


{hline 8} {hi:update 30jan2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* fix}
1.  {help graph_combine:graph combine} did not always respect {cmd:noticks}
    and {cmd:nolabels} settings on the x- and y-axes of the graphs being
    combined.  This is fixed.

{p 5 9 2}
{* fix}
2.  {help graph_combine:graph combine} sometimes refused to accept quoted
    filenames for the graphs to combine; now it does.

{p 5 9 2}
{* fix}
3.  (Macintosh) {help graph_export:graph export} now correctly recognizes the
    {cmd:.pct} suffix.

{p 5 9 2}
{* fix}
4.  {help graph_twoway:graph twoway} refused to accept the {cmd:text()} option
    when the graph had more than one x- or y-axis; this is fixed.

{p 5 9 2}
{* fix}
5.  {help gsort} failed when performed on a no-observation dataset and a
    descending sort was requested.  This is fixed.

{p 5 9 2}
{* fix}
6.  The {help scheme_sj:Stata Journal graphics scheme}
    had too large of a default graph size; this is fixed.  The new size has
    the same aspect ratio as the default graph size for the
    {help scheme_s2:s2color scheme}.

{p 5 9 2}
{* fix}
7.  {help svytest}, an out-of-date command superseded by {help test}, failed
    to allow variable name abbreviations; this is fixed.

{p 5 9 2}
{* fix}
8.  {dialog tab1}'s dialog would not accept multiple variables in the
    "Categorical variable(s)" field; it now does.


    {title:Stata executable}

{p 5 9 2}
{* fix}
9.  Expressions that contained a variable name that

{p 13 17 2}
	1.  Started with the letters {bf:a}-{bf:f}
{p_end}
{p 13 17 2}
	2.  continued, containing only the letters {bf:a}-{bf:f} or
            digits {bf:0}-{bf:9}
{p_end}
{p 13 17 2}
	3.  ended in {bf:x}

{p 9 9 2}
    would generate a syntax error when the variable was immediately followed
    by a {cmd:+} or {cmd:-} followed by a digit or the letters
    {cmd:a}-{cmd:f}.  For instance,
        "{cmd:. generate newvar = fx+2}"
    would produce a syntax error.  This is fixed.  The problem was that
    expressions such as "fx+2" were incorrectly confused with hexadecimal
    literals such as "1.0fx+2".

{p 4 9 2}
{* enhancement}
10.  (Windows) In the 17jan2003 update, the default clipboard format was
     changed from WMF (Windows Metafile) to EMF (Enhanced Metafile) format.
     Older Windows computers did not support EMF format, so a preference has
     been added to the Clipboard tab of the Graph Preferences dialog box to
     allow users to choose between EMF and WMF format.  The default clipboard
     format for modern versions of Windows (XP/2000/NT) is EMF.  The default
     format for older versions of Windows (ME/98) is WMF.

{p 4 9 2}
{* fix}
11.  (Windows) {help reventries:set reventries} did not accept the
     {cmd:permanently} option; now it does.

{p 4 9 2}
{* enhancement}
12.  (Macintosh) Stata now uses OS X's Quartz 2D drawing engine for drawing
     and printing graphs.  Copying graphs to the clipboard is still limited to
     the PICT format.

{p 4 9 2}
{* fix}
13.  (Macintosh) Reverse vertical and reverse horizontal text are now
     displayed properly when using the QuickDraw graphics engine for drawing
     graphs.  This only affects graphs copied to the clipboard or saved as
     PICT files.

{p 4 9 2}
{* fix}
14.  (Macintosh) {help graph_export:graph export {it:filename}.pict} would
     incorrectly report there was an error exporting a graph as a PICT file
     even though there was no error; this is fixed.

{p 4 9 2}
{* fix}
15.  (Macintosh) Graphs did not honor their aspect ratio until the user
     resized the window manually; this is fixed.

{p 4 9 2}
{* enhancement}
16.  (Macintosh) The precedence behavior for the Review and Variables windows
     can be set; see help {help varwindow}.

{p 4 9 2}
{* enhancement}
17.  (Macintosh) The buttons on the Viewer window and Data Editor have been
     changed to use the Small System font.

{p 4 9 2}
{* fix}
18.  (Macintosh) {help display:display _request()} would prompt the user for
     input, ignore the input, prompt the user again, and then accept the
     input.  This is fixed.


{hline 8} {hi:update 23jan2003} {hline}

    {title:Stata executable (Windows only)}

{p 5 9 2}
{* fix}
1.  {help odbc} incorrectly stored strings in variables that were 127
    characters wider than necessary; this is fixed.

{p 5 9 2}
{* enhancement}
2.  The Review and Variables windows now maintain their position independently
    of the main Stata window.  If you install this as an update, the first
    time you run the new executable the Review and Variables windows may
    not appear or may appear in odd positions.  Select {bf:Default windowing}
    from the {bf:Prefs} menu and then reposition the windows as desired.

{p 5 9 2}
{* fix}
3.  {help update:update swap} would return an error if there was a
    blank in the name of the folder in which Stata is installed; this is fixed.

{p 5 9 2}
{* fix}
4.  {help smalldlg:set smalldlg}, introduced in the 17jan2003 update, did not
    accept the {cmd:permanently} option; now it does.


{hline 8} {hi:update 21jan2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* fix}
1.  {help avplots}, {help gladder}, {help qladder}, {help shewhart}, and
    {help varfcast_graph:varfcast graph} did not drop temporary graphs that
    they created; this is fixed.

{p 5 9 2}
{* fix}
2.  {help twoway_function:graph twoway function} and
    {help twoway_kdensity:graph twoway kdensity}, when the data were sorted by
    a string variable and there were less than 300 observations,
    would change the data in memory.  This is fixed.


{hline 8} {hi:update 17jan2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* enhancement}
1.  {help scatter:graph twoway scatter} with very large datasets under
    {help SpecialEdition:Stata/SE} now produces graphs much faster.


    {title:Stata executable}

{p 5 9 2}
{* enhancement}
2.  {cmd:gllamm}, a user written program, runs faster due to some helper
    routines which are now included as part of Stata's executable.  Type
    {search gllamm, all:search gllamm, all} to locate the {cmd:gllamm}
    command.

{p 5 9 2}
{* enhancement}
3.  {help graph} now allows the {cmd:{c -(}c }...{cmd:{c )-}}
    {help smcl} directive to be used in
    graphical text.  For example,

{p 13 13}
{cmd:. scatter y x, title("Crecimiento demogr{c -(}c a'{c )-}fico")}

{p 9 9 2}
    results in the title {cmd:Crecimiento demogr{c a'}fico}.

{p 5 9 2}
{* fix}
4.  {help preserve} and {help save:save, emptyok}, given a
    multiple-observation dataset with no variables, would create an unreadable
    dataset; this is fixed.  This happened only in the rare case of having
    observations with no variables.

{p 5 9 2}
{* enhancement}
5.  (Windows) The default clipboard format has been changed from WMF (Windows
    Metafile) to EMF (Enhanced Metafile) format.  This was done to ensure that
    items such as filled polygons could be pasted into other applications.

{p 5 9 2}
{* fix}
6.  (Windows 98/ME) Some Windows 98/ME computers may suffer from a memory
    limitation that prevents them from opening some of the larger Stata
    dialog boxes, such as those for graphics commands.  Smaller dialog boxes
    have been implemented and may be selected as the default by typing
    {cmd:set smalldlg}.  See help {help smalldlg} for more information.

{p 9 9 2}
    In addition, if you ran into this limitation, Stata would refuse to
    open dialog boxes subsequently.  This is fixed.

{p 5 9 2}
{* fix}
7.  (Macintosh) The Viewer window could be slow in loading some help files;
    this is fixed.

{p 5 9 2}
{* fix}
8.  (Macintosh) The windowing positioning logic for floating windows was
    modified to avoid a bug present in all versions of the Mac OS X operating
    system up to and including 10.2.4.

{p 5 9 2}
{* fix}
9.  (Macintosh) Old-style programmable dialogs, such as those used by the
    StataQuest, could not be displayed due to a change in Mac OS X;
    this is fixed.  Nonetheless, users are strongly encouraged to program
    dialogs using the new dialog language; see help {help dialogs}.


{hline 8} {hi:update 14jan2003} {hline}

    {title:Ado-files}

{p 5 9 2}
{* fix}
1.  {help graph} and any commands using {cmd:graph} would issue an error
    message and fail if Stata was installed in a directory that contained a
    space anywhere in the full pathname of the directory.  This is fixed.

{p 5 9 2}
{* fix}
2.  {help hetprob} would not work when supplied with the {cmd:difficult}
    option; this is fixed.

{p 5 9 2}
{* fix}
3.  {help lowess} would put the default title, subtitle and note on each graph
    when used with the {cmd:by()} option; this is fixed.

{p 5 9 2}
{* fix}
4.  {help svygnbreg} and {help svynbreg} would not work when supplied with the
    {cmd:irr} option; this is fixed.

{p 5 9 2}
{* fix}
5.  {help twoway} graphs that included a right axis drew the labels on that
    axis using horizontal text (while the text on the left axis was drawn
    vertically).  Both axes are now drawn using vertical text by default.
    This affects graphs drawn with the {help scheme_s1:s1} and
    {help scheme_s2:s2} families of schemes.

{p 5 9 2}
{* fix}
6.  {help twoway_histogram:twoway histogram} would not allow the number of
    bins to exceed the number of observations; this is fixed.


{hline 8} {hi:previous updates} {hline}

{pstd}
See {help whatsnew7to8}.

{hline}


{title:Also see}

{psee}
Online:  {help whatsnew}
{p_end}