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From |
vwiggins@stata.com (Vince Wiggins, StataCorp) |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: graph margins (Stata 8) |

Date |
Mon, 03 Feb 2003 17:16:04 -0600 |

Phil Schumm <pschumm@uchicago.edu> tells us, > I have been putting together a few customized schemes for specific > types of work that I frequently do, and based on the schemes in the > distribution the syntax seems pretty straightforward and easy to > work with. I am impressed! The format of the graphics .scheme-files is not currently documented, so Phil is essentially flying without a net. We will have documentation on the .scheme-files, but with all of the options and flexibility in the new graphics we wanted to be sure that the .scheme-files were stable first. ------------------------- So what is a scheme file? ------------------------- At the risk of generating too much interest in files whose format is currently undocumented, a .scheme-file is a file with a special (but simple) format, located anywhere along the ado-path, that can specify a host of characteristics about how a graph looks, see [G] schemes for more information. To see what you might do with a .scheme-file, try two schemes that are shipped with Stata. Type, . sysuse nlsw88 . graph dot wage , over(occupation, sort(1)) scheme(s1rcolor) This produces a dot-plot with a look reminiscent of the default for Stata 7 graphics. Now try, . graph dot wage , over(occupation, sort(1)) scheme(economist) which produces a dot-plot with a look reminiscent of the the Economist magazine (http://www.economist.com) All of the differences between the two graphs were specified in the s1rcolor.scheme and economist.scheme files. For anyone wishing to join Phil in creating .scheme-files, I suggest you look at s2color.scheme (type -which s2color.scheme- to find it). s2color.scheme has the most complete list of graph characteristics that can be set from a .scheme-file. Most of the other .scheme-files shipped with Stata 8 simply "#include" this file and then define the ways in which they differ from s2color.scheme -------------------- Phil's real question -------------------- > [...] I haven't been able to figure out, however, is how to control the > left and top margins of a graph when it is printed. I used to do > this under Stata 7 with commands of the form: > > translator set gph2ps lmargin 0.75 > translator set gph2ps tmargin 1.10 This has not changed from Stata 7 to Stata 8. The way a graph is placed alone on the printed page, as opposed to its own margins when placed on a page with other content, is still controlled by the -translator- settings, so Phil should continue to use the commands he listed. If Phil instead wants to always have more space around the content of his graph, he could do this my setting the overall margin for the graph, either on the -graph- command line using the -graphregion(margin())- option, or in a scheme file using the -margin graph ...- directive. If he always wants larger margins, Phil might put the following line in his scheme-file, margin graph large If, on the other hand, he wanted small left and right margins, but larger top and bottom margins, he might use margin graph "2 2 10 10" where the numbers are each a relativesize, see [R] relativesize. A relative size is scaled such that 100 is the smaller of the width or height of the graph. Note that what follows -margin graph- can be any valid marginstyle specifier, that is to say anything accepted by a -margin()- option, see [G] marginstyle. Here's to Phil's best laid -scheme-s, may they produce only "promis'd joy", Robert Burns not withstanding (but somewhat misquoted). -- Vince vwiggins@stata.com * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

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