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lsmeans  

Least-Squares Means
View on CRAN: Click here


Download and install lsmeans package within the R console
Install from CRAN:
install.packages("lsmeans")

Install from Github:
library("remotes")
install_github("cran/lsmeans")

Install by package version:
library("remotes")
install_version("lsmeans", "2.30-2")



Attach the package and use:
library("lsmeans")
Maintained by
Russell Lenth
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2012-08-15
Latest Update: 2025-03-24
Description:
Obtain least-squares means for linear, generalized linear, and mixed models. Compute contrasts or linear functions of least-squares means, and comparisons of slopes. Plots and compact letter displays. Least-squares means were proposed in Harvey, W (1960) "Least-squares analysis of data with unequal subclass numbers", Tech Report ARS-20-8, USDA National Agricultural Library, and discussed further in Searle, Speed, and Milliken (1980) "Population marginal means in the linear model: An alternative to least squares means", The American Statistician 34(4), 216-221 . NOTE: lsmeans now relies primarily on code in the 'emmeans' package. 'lsmeans' will be archived in the near future.
How to cite:
Russell Lenth (2012). lsmeans: Least-Squares Means. R package version 2.30-2, https://cran.r-project.org/web/packages/lsmeans. Accessed 06 Mar. 2026.
Previous versions and publish date:
0.9 (2012-08-15 07:19), 0.99-80 (2012-09-20 08:15), 0.99 (2012-08-27 16:34), 1.00-00 (2012-10-19 19:56), 1.05-00 (2012-11-02 14:35), 1.05-01 (2012-12-05 19:26), 1.06-05 (2013-02-14 07:35), 1.06-06 (2013-06-14 07:01), 1.10-00 (2013-07-04 21:48), 1.10-01 (2013-07-19 18:01), 1.10-2 (2013-09-30 17:38), 1.10-3 (2013-11-29 18:20), 1.10-4 (2013-12-04 21:16), 2.00-1 (2014-03-03 00:28), 2.00-4 (2014-03-24 15:25), 2.00-5 (2014-04-10 09:18), 2.05 (2014-05-10 19:24), 2.10 (2014-06-25 00:05), 2.11 (2014-07-31 07:18), 2.12 (2014-09-23 22:20), 2.13 (2014-11-14 01:01), 2.14 (2015-01-06 23:36), 2.15 (2015-02-07 10:43), 2.16 (2015-03-14 23:36), 2.17 (2015-04-16 19:53), 2.18 (2015-06-01 09:54), 2.19 (2015-07-26 22:51), 2.20-2 (2015-09-02 15:52), 2.20-23 (2015-10-10 22:50), 2.20 (2015-08-29 10:01), 2.21-1 (2015-12-17 16:09), 2.21 (2015-12-04 21:43), 2.22-1 (2016-02-07 22:04), 2.22 (2016-01-26 22:26), 2.23-5 (2016-07-18 20:13), 2.23 (2016-03-10 08:00), 2.24 (2016-10-21 10:32), 2.25-5 (2017-03-09 08:18), 2.25 (2016-11-19 10:15), 2.26-3 (2017-05-09 09:18), 2.27-2 (2017-08-28 16:41), 2.27-60 (2017-11-02 02:02), 2.27-61 (2017-11-05 16:03), 2.27-62 (2018-05-11 13:03), 2.30-0 (2018-11-03 00:50)
Other packages that cited lsmeans R package
View lsmeans citation profile
Other R packages that lsmeans depends, imports, suggests or enhances
Complete documentation for lsmeans
Functions, R codes and Examples using the lsmeans R package
Some associated functions: auto.noise . lsmeans-package . ref.grid-class . ref.grid . transition . 
Some associated R codes: S4-classes.R . ref.grid.R . zzz.R .  Full lsmeans package functions and examples
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