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...th + ln_ps, data = data.mn) I wish to remove each of "q23_wt", "park_avg", "walk_avg" and "aesth_avg" one at a time from the above model, without having to type each version manually. Louis Merlin ________________________________ Mr. Louis Merlin, AICP Doctoral Student UNC CH Department of City and Regional Planning [[alternative HTML version deleted]]

Hi,   If I use sprintf and return inside a function, sprintf doesn't print anything anymore. See the non-sense example below.   > x <- function() { a <- 888 + sprintf("xxx %s", a) } > x() [1] "xxx 888" > x <- function() { a <- 888 + sprintf("xxx %s", a) + return(a) } > x() [1] 888 Is this a bug? Cheers!! Albert-Jan

...to serve as a helper function when changing geographic rownames or variable column names. For more info, examples, and demo plots, see the package documentation and/or <http://eglenn.scripts.mit.edu/citystate/2012/03/acs-package-updated-version-0-8-now-on-cran/>. -- Ezra Haber Glenn, AICP Lecturer in Community Development Department of Urban Studies and Planning Massachusetts Institute of Technology 77 Massachusetts Ave., Room 7-337 Cambridge, MA 02139 eglenn at mit.edu http://dusp.mit.edu/faculty/eglenn | http://eglenn.scripts.mit.edu/citystate/ 617.253.2024 (w) 617.721.7131 (c)...

...to serve as a helper function when changing geographic rownames or variable column names. For more info, examples, and demo plots, see the package documentation and/or <http://eglenn.scripts.mit.edu/citystate/2012/03/acs-package-updated-version-0-8-now-on-cran/>. -- Ezra Haber Glenn, AICP Lecturer in Community Development Department of Urban Studies and Planning Massachusetts Institute of Technology 77 Massachusetts Ave., Room 7-337 Cambridge, MA 02139 eglenn at mit.edu http://dusp.mit.edu/faculty/eglenn | http://eglenn.scripts.mit.edu/citystate/ 617.253.2024 (w) 617.721.7131 (c)...

...e and the update, please visit: <http://eglenn.scripts.mit.edu/citystate/2016/03/acs-version-2-0-now-on-cran>, and the "Working with acs.R" user guide at <http://dusp.mit.edu/sites/dusp.mit.edu/files/attachments/publications/working_with_acs_R_v_2.0.pdf>. -- Ezra Haber Glenn, AICP Department of Urban Studies and Planning Massachusetts Institute of Technology 77 Massachusetts Ave., Room 7-346 Cambridge, MA 02139 eglenn at mit.edu http://dusp.mit.edu/faculty/ezra-glenn 617.253.2024 (w) 617.721.7131 (c)