data format error in association rule learning R -


i tried search other posts in r related this, did not find duplicated questions(at least efforts). know need priori function in library("a rules") though.

i have large array file each row list

user1:  [1,2,3,4]      # [1,2,3,4] itemlist purchased user user2:  [4] ................

i want find items tend purchased together. how should proceed? seems need convert data "transaction" format file also.

so did 

temp <- split(a, 1:nrow(a))   # temp list of lists b <- as(temp, "transactions")

but got error "error in asmethod(object) : can coerce list atomic components only" can help?

i googled example , run following code without problem

a_list <- list(c("i1","i2","i5"), c("i2","i4"), c("i2","i3"), c("i1","i2","i4"), c("i1","i3"),c("i2","i3"),c("i1","i3"), c("i1","i2","i3","i5"), c("i1","i2","i3") )  names(a_list) <- paste("t",c(1:9), "00", sep = "") table5_1 <- as(a_list, "transactions")

both of temp (in code) , a_list of class list, however

     a_list[1] [[1]] [1] "i1" "i2" "i5"       temp[1]  $`1`  $`1`$`1`  [1] 1,2,3,4

how should correct this? due factor temp file derived data frame?

thanks

i had same error , couldn't figure out. finally, realized had null values coming through in description/item field. i'd check null/empty strings coming through might issue (assuming have removed duplicate records 1 transaction).


Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

javascript - jQuery show full size image on click -

pretty self explanatory not workking . i want display full image when user click on image... yes know there tons of plugins but i want keep simple. any idea ? css : .full { display: none; width: 500px; height: 500px; margin-left: 100px; margin-top: -300px; position: fixed; background-color: #f00; z-index: 6; } .thumbnail { width: 50px; height: 50px; } html: <img class="thumbnail" src="http://4.bp.blogspot.com/-uhbdp2esxng/txneptvi92i/aaaaaaaaaky/upfqis7zto0/s1600/rihanna-wallpaper.jpg"> jquery: $(document).ready(function() { $('.thumbnail').on('click', function() { var img = $('<img />',{src:this.src,'class':'full'}); $('.full').html(img).show(); console.log('done!'); }); }); try looking how jquery works. $(document).ready(function() { $('.thumbnail').on('click', function(...
Read more