r - methods for an object with length(class)>1 -


this question suggests using methods(class=class(obj)) extract list of methods available object.

if used on object length(class(obj))>1, leads lots of warnings, e.g.

set.seed(101) <- matrix(rnorm(20), nrow = 10) b <- + rnorm(length(a)) obj <- lm(b ~ a)

gives class(obj) c("lm","mlm"); methods(class=class(obj)) gives

(many times)< warning in grep(pattern, all.names, value = true) : argument 'pattern' has length > 1 , first element used
warning in gsub(name, "", s3reg) : argument 'pattern' has length > 1 , first element used
warning in sub(paste0("\.", class, "$"), "", row.names(info)) : argument 'pattern' has length > 1 , first element used

followed results.

it seems (?) applying methods(class=...) last element of class(obj) work, i'm interested in alternatives or discussion why (or not) correct ...

to clarify, returned value (preferably unique) character vector, can use if ("foo" %in% allmethods(obj)) test availability of specified method object ...

is you're looking for?

sapply(class(obj), function(x) methods(class = x))

note code below gives error, since argument generic.function becomes mlm. must argument class above.

sapply(class(obj), methods) error in .s3methods(generic.function, class, parent.frame()) :    no function 'mlm' visible

Comments

Post a Comment

Popular posts from this blog

ubuntu - PHP script to find files of certain extensions in a directory, returns populated array when run in browser, but empty array when run from terminal -

i running os ububtu 16.04. ultimate goal able run php script cron job every minute. here php script located @ /var/www/html/tests/test/index.php : <?php $directorypath = $_server['document_root']."/tests/test/data/"; echo "directorypath: $directorypath<br><br>";//check $imagefilepathsarray = glob($directorypath . "*.{png,gif}", glob_brace); echo "<br><br>imagefilepathsarray: "; print_r($imagefilepathsarray);//check ?> when open php script in browser visiting url my-ip-address/tests/test/index.php , get: directorypath: /var/www/html/tests/test/data/ imagefilepathsarray:array( [0] => /var/www/html/tests/test/data/pic.png [1] => /var/www/html/tests/test/data/pic.gif ) before writing cron job in crontab file, need check if can run anywhere using terminal . opened ubuntu terminal @ /home/ location, , executed in terminal: sudo php /var/www/html/tests/test/index.php i got following out...
Read more

php - How can i create a user dashboard -

today have questions you, want create user dashboard site, include (obviously), users data, example -email -username -and others stuff how can information, , print them in html page? if can, how can these information via php sessions? shuld use session? example, if user login, , start new session ( session_start() ), how can data print in dashboard? should use php "project"? in advice, have day , thank time!
Read more

javascript - How to detect toggling of the fullscreen-toolbar in jQuery Mobile? -

i have jquery mobile page fixed full-screen toolbar, data-tap-toggle enabled. straight under toolbar have positioned banner should slide upwards when toolbar hiding , slide downward when toolbar showing. jquery mobile toggles toolbar applying , removing ui-fixed-hidden class - sadly, can't find in documentation of toolbar widget toggle , hide or show event that. how can detect when toolbar toggled, reposition banner? .banner { position: fixed; background-color: darkseagreen; top: 46px; min-height: 48px; width: 100%; text-align: center; line-height: 48px; } <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"> <script src="https://code.jquery.com/jquery-1....
Read more