{smcl}
{hline}
{cmd:help: {helpb spweightxt}}{space 55} {cmd:dialog:} {bf:{dialog spweightxt}}
{hline}

{bf:{err:{dlgtab:Title}}}

{bf: spweightxt: Panel Spatial Weight Matrix}

{bf:{err:{dlgtab:Syntax}}}

{cmd: spweightxt} {varlist} {cmd:,} {opt p:anel(numlist)} {opt t:ime(numlist)} {opt m:atrix(weight_name)} {opt tab:el} {opt ptab:el}

{bf:{err:{dlgtab:Description}}}

{p 2 2 2} spweightxt creates or generates both Cross Section and Panel Spatial Weight Matrix among neighbor locations, for using in panel spatial regression analysis.{p_end}

{p 2 2 2} Raw data for neighbor locations units must be put as shown in the sample data file {cmd: (spweightxt.dta)}.{p_end}

{p2colreset}{...}
{bf:{err:{dlgtab:Options}}}

{col 4}{opt p:anel}{col 15}Number of all locations units

{col 4}{opt t:ime}{col 15}Number of time series in each cross section (must be balanced)

{col 4}{opt m:atrix}{col 15}Specify name of spatial weight matrix, that will be created

{col 4}{opt tab:le}{col 15}Display Cross Section Spatial Weight Matrix Table

{col 4}{opt ptab:le}{col 15}Display Panel Spatial Weight Matrix Table

{bf:{err:{dlgtab:Saved Results}}}

{p 2 4 2 }{cmd:spweightxt} saves the following results in {cmd:e()}:

Matrixes
{col 4}{cmd:e(wcs)}{col 15}Cross Section Spatial Weight Matrix.{p_end}
{col 4}{cmd:e(wxt)}{col 15}Panel Spatial Weight Matrix.{p_end}

{bf:{err:{dlgtab:Example}}}

	{stata clear all}

	{stata sysuse spweightxt.dta, clear}

	{stata spweightxt v1 v2 , panel(4) time(4) matrix(W)}

	{stata spweightxt v1 v2 , panel(4) time(4) matrix(W) table}

	{stata spweightxt v1 v2 , panel(4) time(4) matrix(W) ptable}

	{stata spweightxt v1 v2 , panel(4) time(4) matrix(W) table ptable}

	{stata ereturn list}

	{stata db spweightxt}

{p 2 2 2} The final shape of cross section and panel spatial weight matrix will be as follows:.{p_end}

    -----------------------------------------
          |                {bf:v2}                
       {bf:v1} |   {bf:1}      {bf:2}      {bf:3}      {bf:4}    {bf:Total}
    ------+----------------------------------
        {bf:1} |    0      {bf:{red:1}}      {bf:{red:1}}      {bf:{red:1}}      {bf:3} 
        {bf:2} |    {bf:{red:1}}      0      {bf:{red:1}}      0      {bf:2} 
        {bf:3} |    {bf:{red:1}}      {bf:{red:1}}      0      {bf:{red:1}}      {bf:3} 
        {bf:4} |    {bf:{red:1}}      0      {bf:{red:1}}      0      {bf:2} 
    ------+----------------------------------
    {bf:Total} |    {bf:3}      {bf:2}      {bf:3}      {bf:2}     {bf:10} 
    -----------------------------------------

            (1)               (2)               (3)               (4)         
    |-----------------|-----------------|-----------------|-----------------|
(1) |  0   0   0   0  |  {bf:{red:1}}   0   0   0  |  {bf:{red:1}}   0   0   0  |  {bf:{red:1}}   0   0   0  |
    |  0   0   0   0  |  0   {bf:{red:1}}   0   0  |  0   {bf:{red:1}}   0   0  |  0   {bf:{red:1}}   0   0  |
    |  0   0   0   0  |  0   0   {bf:{red:1}}   0  |  0   0   {bf:{red:1}}   0  |  0   0   {bf:{red:1}}   0  |
    |  0   0   0   0  |  0   0   0   {bf:{red:1}}  |  0   0   0   {bf:{red:1}}  |  0   0   0   {bf:{red:1}}  |
    |-----------------|-----------------|-----------------|-----------------|
(2) |  {bf:{red:1}}   0   0   0  |  0   0   0   0  |  {bf:{red:1}}   0   0   0  |  0   0   0   0  |
    |  0   {bf:{red:1}}   0   0  |  0   0   0   0  |  0   {bf:{red:1}}   0   0  |  0   0   0   0  |
    |  0   0   {bf:{red:1}}   0  |  0   0   0   0  |  0   0   {bf:{red:1}}   0  |  0   0   0   0  |
    |  0   0   0   {bf:{red:1}}  |  0   0   0   0  |  0   0   0   {bf:{red:1}}  |  0   0   0   0  |
    |-----------------|-----------------|-----------------|-----------------|
(3) |  {bf:{red:1}}   0   0   0  |  {bf:{red:1}}   0   0   0  |  0   0   0   0  |  {bf:{red:1}}   0   0   0  |
    |  0   {bf:{red:1}}   0   0  |  0   {bf:{red:1}}   0   0  |  0   0   0   0  |  0   {bf:{red:1}}   0   0  |
    |  0   0   {bf:{red:1}}   0  |  0   0   {bf:{red:1}}   0  |  0   0   0   0  |  0   0   {bf:{red:1}}   0  |
    |  0   0   0   {bf:{red:1}}  |  0   0   0   {bf:{red:1}}  |  0   0   0   0  |  0   0   0   {bf:{red:1}}  |
    |-----------------|-----------------|-----------------|-----------------|
(4) |  {bf:{red:1}}   0   0   0  |  0   0   0   0  |  {bf:{red:1}}   0   0   0  |  0   0   0   0  |
    |  0   {bf:{red:1}}   0   0  |  0   0   0   0  |  0   {bf:{red:1}}   0   0  |  0   0   0   0  |
    |  0   0   {bf:{red:1}}   0  |  0   0   0   0  |  0   0   {bf:{red:1}}   0  |  0   0   0   0  |
    |  0   0   0   {bf:{red:1}}  |  0   0   0   0  |  0   0   0   {bf:{red:1}}  |  0   0   0   0  |
    |-----------------|-----------------|-----------------|------------------


{p 2 2 2} After creating panel spatial weight matrix, you can use {helpb spautoreg} (if installed) to generate eigenvalues vector and standardized weight matrix.{p_end}

{bf:{err:{dlgtab:Author}}}

  {hi:Emad Abd Elmessih Shehata}
  {hi:Assistant Professor}
  {hi:Agricultural Research Center - Agricultural Economics Research Institute - Egypt}
  {hi:Email:   {browse "mailto:emadstat@hotmail.com":emadstat@hotmail.com}}
  {hi:WebPage:{col 27}{browse "http://emadstat.110mb.com/stata.htm"}}
  {hi:WebPage at IDEAS:{col 27}{browse "http://ideas.repec.org/f/psh494.html"}}
  {hi:WebPage at EconPapers:{col 27}{browse "http://econpapers.repec.org/RAS/psh494.htm"}}

{bf:{err:{dlgtab:spweightxt Citation}}}

{phang}Shehata, Emad Abd Elmessih (2011){p_end}
{phang}{cmd:SPWEIGHTXT: "Stata Module to Create Panel Spatial Weight Matrix"}{p_end}

	{browse "http://ideas.repec.org/c/boc/bocode/s457330.html"}

	{browse "http://econpapers.repec.org/software/bocbocode/s457330.htm"}

{title:Online Help:}

{p 4 12 2} {helpb spregcs}, {helpb spregxt}, {helpb spautoreg}, {helpb spweight},
{helpb gs3sls}, {helpb gs2slsxt}, {helpb spmstar}, {helpb spweightcs},
{helpb spweightxt}, {helpb spcs2xt} {opt (if installed)}.{p_end}

{psee}
{p_end}