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From |
Nick Winter <nw53@cornell.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: changing display format of macro contents |

Date |
Tue, 18 Jan 2005 14:27:49 -0500 |

This will replace beta1hat with a reformatted version:

local beta1hat : di %3.2f `beta1hat'

In general, see -whelp extended_fcn-.

Or, using the `expansion_optr' ability (see -whelp macro-) you can do it in one step:

local beta1hat : di %3.2f `=coefs[1,1]'

Or, better yet, omit the beta1hat macro altogether:

lfit y x , ///

title("Fitted line: y = `: di %3.2f `=coef[1,2]'' + `: di 3.2f `=coef[1,1]'' * x")

--Nick Winter

At 11:08 AM 1/18/2005 -0800, you wrote:

--------------------------------------------------------i want to fit and draw a regression line and label the line, like this: reg y x matrix coefs=e(b) loc beta1hat=coefs[1,1] loc beta0hat=coefs[1,2] lfit y x, title("fitted line: y = `beta0hat' + `beta1hat' * x") when i do this, i get values for the estimated coefficients displayed with far more precision than i want. so i want to display only, say, 2 digits after the decimal for each macro. i wasn't able to figure out a way to apply a display format to a macro, so i tried adding this code before the -lfit- command: loc beta1hat = int(`beta1hat'*100+0.5)/100 loc beta0hat = int(`beta0hat'*100+0.5)/100 this works most of the time, but sometimes i get a graph that has a title like this: "y = 7.84000000001 + 2.31 * x" or "y = 7.83999999999 + 2.31 * x" i assume that the problem is the rounding doesn't work in binary all the time. can anyone suggest a way around this? (obviously if i were making a single graph, i could put the coefficients in the title by hand, but this code is part of a larger program, so i'd like it automated.) thanks, sean. _____________________________ please note new contact information: _____________________________ sean f. reardon associate professor of education and (by courtesy) sociology school of education 485 lasuen mall, #315 stanford university stanford, ca 94305-3096 650.736.8517 (office phone) 650.725.7412 (office fax) sean.reardon@stanford.edu _____________________________ * * 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/

Nicholas Winter 607.255.8819 t

Assistant Professor 607.255.4530 f

Department of Government nw53@cornell.edu e

308 White Hall falcon.arts.cornell.edu/nw53 w

Cornell University

Ithaca, NY 14853-4601

*

* 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/

**References**:**st: changing display format of macro contents***From:*"Reardon, Sean F." <sreardon@stanford.edu>

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