Re: st: scatterplot with equation line

[Nick Cox <njcoxstata@gmail.com>]

-aaplot- (SSC) supports some simple regression models.

-regplot- (SJ) will also do this post hoc for many models that will
fit on a graph. Once installed, the help gives several examples.

. search regplot

SJ-10-1 gr0009_1  . . . .  Software update for model diagnostic graph commands
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N. J. Cox
        (help anovaplot, indexplot, modeldiag, ofrtplot, ovfplot,
        qfrplot, racplot, rdplot, regplot, rhetplot, rvfplot2,
        rvlrplot, rvpplot2 if installed)
        Q1/10   SJ 10(1):164
        provides new command rbinplot for plotting means or medians
        of residuals by bins; provides new options for smoothing
        using restricted cubic splines; updates anova examples

SJ-4-4  gr0009  . . . . . . . . . . Speaking Stata: Graphing model diagnostics
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N. J. Cox
        (help anovaplot, indexplot, modeldiag, ofrtplot, ovfplot,
        qfrplot, racplot, rdplot, regplot, rhetplot, rvfplot2,
        rvlrplot, rvpplot2 if installed)
        Q4/04   SJ 4(4):449--475
        plotting diagnostic information calculated from residuals
        and fitted values from regression models with continuous
        responses

Nick
njcoxstata@gmail.com


On 1 November 2013 14:34, Alfonso Sánchez-Peñalver
<alfonso.statalist@gmail.com> wrote:

> you could always predict the expected value of the response variable after your regression and plot that as the line.

On Nov 1, 2013, at 10:24 AM, Scott Merryman <scott.merryman@gmail.com> wrote:

>> See -help twoway function-
>>
>> For example:
>>
>> sysuse auto
>> scatter price mpg || function y = 11000 - 400*x + 5*x^2, range(10 40)

On Fri, Nov 1, 2013 at 9:17 AM, Alice Guerra <alice.guerra88@gmail.com> wrote:

>>> how can I do a scatterplot with a specific equation line?
>>>
>>> In particular, I would like to plot a scatter with a regression line
>>> that does not derive from an OLS, but from a dummy regression (so, I
>>> cannot use lfit).
>>>
>>> Thank you for your help and for your time

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