| Package | Function | dY/dX | SE | dY/dX | SE | dY/dX | SE |
|---|---|---|---|---|---|---|---|
| stats | lm | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| glm | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| nls | |||||||
| loess | ✓ | U | U | ||||
| AER | ivreg | ✓ | ✓ | ✓ | ✓ | U | U |
| tobit | ✓ | ✓ | U | U | ✓ | ✓ | |
| afex | afex_aov | U | U | ✓ | ✓ | ||
| aod | betabin | U | U | U | U | ||
| betareg | betareg | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| bife | bife | U | U | U | U | ||
| biglm | biglm | U | U | U | U | ||
| bigglm | U | U | U | U | |||
| blme | blmer | ||||||
| bglmer | |||||||
| brglm2 | bracl | U | U | U | U | ||
| brglmFit | ✓ | ✓ | ✓ | ✓ | |||
| brnb | ✓ | ✓ | U | U | |||
| brmultinom | U | U | U | U | |||
| brms | brm | U | U | ✓ | ✓ | ||
| crch | crch | U | U | U | U | ||
| hxlr | U | U | U | U | |||
| DCchoice | oohbchoice | ||||||
| estimatr | lm_lin | ||||||
| lm_robust | ✓ | ✓ | ✓ | U | ✓ | ✓ | |
| iv_robust | ✓ | ✓ | U | U | U | U | |
| fixest | feols | ✓ | ✓ | U | U | U | U |
| feglm | U | U | U | U | |||
| fenegbin | U | U | U | U | |||
| fepois | ✓ | ✓ | U | U | U | U | |
| gam | gam | U | U | ✓ | ✓ | ||
| gamlss | gamlss | U | U | ✓ | ✓ | ||
| geepack | geeglm | U | U | ✓ | ✓ | ||
| glmmTMB | glmmTMB | U | U | ✓ | ✓ | ||
| glmx | glmx | ✓ | U | U | U | ||
| ivreg | ivreg | ✓ | ✓ | ✓ | ✓ | U | U |
| lme4 | lmer | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| glmer | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| glmer.nb | ✓ | ✓ | ✓ | ✓ | |||
| lmerTest | lmer | ✓ | ✓ | ✓ | ✓ | ||
| logistf | logistf | ||||||
| flic | |||||||
| flac | |||||||
| MASS | glmmPQL | U | U | ✓ | ✓ | ||
| glm.nb | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| polr | ✓ | ✓ | ✖ | ✖ | ✓ | ✓ | |
| rlm | ✓ | ✓ | ✓ | ✓ | |||
| mclogit | mblogit | U | U | U | U | ||
| mclogit | U | U | U | U | |||
| MCMCglmm | MCMCglmm | U | U | U | U | U | U |
| mgcv | gam | U | U | ✓ | ✓ | ||
| bam | U | U | ✓ | ✖ | |||
| mhurdle | mhurdle | ✓ | ✓ | U | U | ||
| mlogit | mlogit | U | U | U | U | ||
| nlme | gls | U | U | ✓ | ✓ | ||
| lme | |||||||
| nnet | multinom | ✓ | ✓ | U | U | U | U |
| ordbetareg | ordbetareg | U | U | ||||
| ordinal | clm | ✓ | ✓ | U | U | U | U |
| plm | plm | ✓ | ✓ | ✓ | ✓ | U | U |
| phylolm | phylolm | ||||||
| phyloglm | |||||||
| pscl | hurdle | ✓ | U | ✓ | ✖ | ||
| hurdle | ✓ | U | ✓ | ✖ | |||
| zeroinfl | ✓ | ✓ | ✓ | U | ✓ | ✓ | |
| quantreg | rq | ✓ | ✓ | U | U | ✓ | ✓ |
| Rchoice | hetprob | ||||||
| ivpml | |||||||
| rms | ols | ||||||
| lrm | |||||||
| orm | |||||||
| robust | lmRob | U | U | U | U | ||
| robustbase | glmrob | ✓ | ✓ | U | U | ||
| lmrob | ✓ | ✓ | U | U | |||
| robustlmm | rlmer | U | U | ||||
| rstanarm | stan_glm | ✖ | U | ✓ | ✓ | ||
| sampleSelection | selection | U | U | U | U | ||
| heckit | U | U | U | U | |||
| scam | scam | U | U | U | U | ||
| speedglm | speedglm | ✓ | ✓ | ✓ | ✓ | U | U |
| speedlm | ✓ | ✓ | ✓ | ✓ | U | U | |
| survey | svyglm | ✓ | ✓ | ✓ | ✓ | ||
| svyolr | |||||||
| survival | clogit | ||||||
| coxph | ✓ | ✓ | U | U | ✓ | ✓ | |
| tobit1 | tobit1 | ✓ | ✓ | U | U | ||
| truncreg | truncreg | ✓ | ✓ | ✓ | ✓ | U | U |
28 Supported Models
This table shows the list of 86 supported model types. There are three main alternative software packages to compute such slopes (1) Stata’s margins command, (2) R’s margins::margins() function, and (3) R’s emmeans::emtrends() function. The test suite hosted on Github compares the numerical equivalence of results produced by marginaleffects::slopes() to those produced by all 3 alternative software packages:
- ✓: a green check means that the results of at least one model are equal to a reasonable tolerance.
- ✖: a red cross means that the results are not identical; extra caution is warranted.
- U: a grey U means that computing slopes for a model type is unsupported by alternative packages, but supported by
marginaleffects. - An empty cell means means that no comparison has been made yet.
I am eager to add support for new models. Feel free to file a request or submit code on Github.