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From |
Alan Neustadtl <alan.neustadtl@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Re: Using xml_tab |

Date |
Mon, 2 Mar 2009 17:25:50 -0500 |

Thanks for the information. It is very helpful. Best, Alan On Mon, Mar 2, 2009 at 5:10 PM, Zurab Sajaia <zsajaia@hotmail.com> wrote: > Not exactly, you can still use format() option as well as -long- and -wide- > when outputting matrices. > > As for the significance levels, problem is that when you write "xml_tab A" > matrix A can be any matrix (say 3 columns and 14 rows) program doesn't know > what those three columns correspond to, this mode is used to output any > matrix to xml file. So in this general case xml_tab "won't know" how to > calculate significance levels. but it looks for a matrix A_STARS (for the > main matrix A), and if it exists uses values to assign stars. > A_STARS would have 4 numbers in it: 0, 1 ,2, or 3. 0 corresponding to no > stars, 1 to the highest significance level (p<0.01 by default - ***) 2 - > next level (p<0.05 - **) and 3 to the lowest level (p<0.1 *). > But this means that user will need to calculate this levels and form the > matrix A_STARS manually. > > General idea when I was writing this part was that results come from some > other routine or source in a form of a matrix and xml_tab just outputs it in > a "similar" way to it's own estimation outputs. > > I guess it can be useful to have option coefonly or something while > outputting estimation results, so that user's will be able to see > significance and also other statistics together with betas. I'll post update > as soon as I have some progress on that. > > Zurab > > > ----- Original Message ----- From: "Alan Neustadtl" > <alan.neustadtl@gmail.com> > To: <statalist@hsphsun2.harvard.edu> > Sent: Monday, March 02, 2009 4:20 PM > Subject: Re: st: Re: Using xml_tab > > >> Thank you for your examples. After working through them and returning >> to the help file it seems that there is a trade-off between writing >> out stored estimations and matrices. >> >> Writing out stored estimations allows significant control over the >> format and layout of the table but does not allow for things like >> renaming the rows or dropping the standard errors. >> >> Writing out matrices allows control over the row labels but not cell >> formatting and outputting significance levels (stars) and other >> statistics (e.g. R2, etc.). >> >> Am I understanding the difference between the two methods correctly? >> >> Best, >> Alan >> >> On Mon, Mar 2, 2009 at 3:45 PM, Zurab Sajaia <zsajaia@hotmail.com> wrote: >>> >>> Hi Alan, >>> >>> To see variable names instead of (default) labels, you can use -nolabel- >>> option; >>> -xml_tab- can also output matrices directly, so you can accumulate your >>> betas into a matrix and then use xml_tab: >>> >>> (from your example): >>> ... >>> regress mpg weight >>> matrix A = e(b)' >>> regress mpg weight foreign displacement >>> matrix B = e(b)' >>> >>> xml_tab A B, {options} >>> ... >>> >>> when exporting a matrix, -xml_tab- reads matrix rownames (and row >>> equations >>> if present), so to modify text in the rows you can either form the names >>> for >>> your matrix, i.e. >>> matrix rownames A = "this is row 1" "and row 2" (for the third row >>> "displacement" will remain as the name) >>> >>> or use -xml_tab-'s option rnames(): >>> xml_tab A B, rnames("this is row 1" "and row2") >>> >>> when merging two matrices of different size -xml_tab- puts .z by default >>> for >>> the added cells (I guess I'll have to change this default), but if you >>> want >>> to use any other text, or blank you can specify -mv- option: >>> >>> xml_tab A B, mv(.z="(missing)") // replace .z missing values with text >>> "(missing)" >>> or >>> xml_tab A B, mv("") //all the missing values, not only .z will be >>> replaced >>> by the empty cells >>> >>> Hope this helps, >>> Zurab >>> >> >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/statalist/faq >> * http://www.ats.ucla.edu/stat/stata/ >> > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Using xml_tab***From:*Alan Neustadtl <alan.neustadtl@gmail.com>

**st: Re: Using xml_tab***From:*"Zurab Sajaia" <zsajaia@hotmail.com>

**Re: st: Re: Using xml_tab***From:*Alan Neustadtl <alan.neustadtl@gmail.com>

**Re: st: Re: Using xml_tab***From:*"Zurab Sajaia" <zsajaia@hotmail.com>

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