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From |
Nick Winter <nwinter@virginia.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Create graph directly from matrix? |

Date |
Mon, 16 Nov 2009 18:57:51 -0500 |

- Nick On 11/16/2009 6:23 PM, Sergiy Radyakin wrote:

Well Nick, you would probably want to save your graph in a *.gph format, and be able to restore it later. So the data for the graph must be stored within the gph file. It is stored in sersets there. How does it get into a serset is up to you. I prefer creating temporary variables and let Stata's engine to do the sersets. I had a rather unpleasant experience in dealing with them directly in one of the earlier commands and decided to minimize their use in the future. See this link, for the presentation plotting some matrices: http://www.adeptanalytics.org/radyakin/stata/graphics/radyakin_graphics.htm Best wishes, Sergiy Radyakin On Mon, Nov 16, 2009 at 11:38 AM, Nick Winter <nwinter@virginia.edu> wrote:Hi, I'm wondering if there is a way to convert the values held into a matrix into a graph (ie, into a serset that serves as the basis for a graph) directly, without first making the matrix into variables? Why I'm curious: I'm thinking about revising my -oprobpr- command, which plots predicted probabilities after order l/probit models. The new -margins- command can fairly easily calculate what's required for the plotting, and those results can be saved as a matrix, using -margins-'s -post- option. So I'd like to plot the estimates returned in e(b) against values in e(at). I can put this stuff all together in one matrix, eg: sysuse auto probit foreign mpg price weight margins, atmeans at(mpg=(12(2.9)41)) post mat b = e(b) mat X = e(at) mat Xy = X , b' Then I'd like to create, eg, a line plot of the final column (named y1) against the first column (mpg). I can, of course, use -svmat-, graph the relevant variables, and drop the variables. But I'd love a more elegant solution. Cheers, Nick Winter -- -------------------------------------------------------------- Nicholas Winter 434.924.6994 t Assistant Professor 434.924.3359 f Department of Politics nwinter@virginia.edu e University of Virginia faculty.virginia.edu/nwinter w PO Box 400787, 100 Cabell Hall Charlottesville, VA 22904 * * 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/

-- -------------------------------------------------------------- Nicholas Winter 434.924.6994 t Assistant Professor 434.924.3359 f Department of Politics nwinter@virginia.edu e University of Virginia faculty.virginia.edu/nwinter w PO Box 400787, 100 Cabell Hall Charlottesville, VA 22904 * * 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: Create graph directly from matrix?***From:*Nick Winter <nwinter@virginia.edu>

**Re: st: Create graph directly from matrix?***From:*Sergiy Radyakin <serjradyakin@gmail.com>

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