similar to: inconsistency in attaching attributes to NULL

Consider: > x <- matrix(1:6, 2,3) > rownames(x) <- c("ID1", "ID2") > colnames(x) <- c("Attr1", "Attr2", "Attr3") > x Attr1 Attr2 Attr3 ID1 1 3 5 ID2 2 4 6 > write.csv(x,file="x.csv") "","Attr1","Attr2","Attr3" "ID1",1,3,5

Dear R experts, I would really appreciate if you had an idea on how to use more efficiently the aggregate method: More specifically, I would like to calculate the mean of certain values on a data frame,? grouped by various attributes, and then create a new column in the data frame that will have the corresponding mean for every row. I attach part of my code: matchMean <-

Hi, I have 100000 units with 10 attributes (attr1, attr2, attr3, etc...) For instance: unit attr1 attr2 attr3 ... 1 a ww 12 2 a re 11 3 b ww 09 4 c yt 02 5 a qw 02 ... I'd like to answer to the question: a) what are the most frequent combinations of attributes? b) How could I describe the relations

Ok, So, I''ve got two data tables associated through a foreign key. class Child < ActiveRecord::Base belongs_to :parent, :class => Parent, :foreign_key => "parent_id" # also has attr1, attr2 end class Parent < ActiveRecord::Base has_many :children, :class => Child, :foreign_key => "parent_id" end So, I''m trying to build the new/edit

When I use rbind() or rbind.data.frame() to add a row to an existing dataframe, it appears that attributes for the column of type "factor" are dropped. See the sample example below to reproduce the problem. Please suggest How I can fix this. Thanks, Sammy a=c("Male", "Male", "Female", "Male") b=c(1,2,3,4) c=c("great", "bad",

I find myself writing the following frequently: r = MyActiveRecord.where(:attr1 => cond1, :attr2 => cond2, ...) r.exists? ? r.first : r.create ... which has the effect of returning an instance of MyActiveRecord if all the conditions are met, or creating one if it doesn''t. A variant of this: c = MyActiveRecord.new(:attr1 => val1, :attr2 => val2, ...) r =

Hello, to implement some some kind of optimistic locking, I want to build a view, where an object is displayed together with a link containing the data of the displayed object. My first try looked something like <%= object.object_discription %> <%= link_to "action", :action => "take_action", :data => object %> this won''t work because object is of

Is there option for deleting xattr-s same as --delete for files, because it seems deletion of xattr don't sync, however it is synced when data of file change, see example below. Maybe this is a bug or maybe this is ok? System gentoo attr-2.4.32, rsync form today cvs. -- Regards Stanislaw Gruszka stasiu@sg /mnt/hda5/export $ echo "data" > file stasiu@sg /mnt/hda5/export $

Is it possible to create a database in MySQL via RMySQL? Also, is the format for the authorization field 'userName/password at databasename'? I saw an example like this somewhere in the documenation, but I haven't found the actual specification. Thanks, Barnet Wagman

Dear RGroup I have a data of the type shown below: I am trying to use lme function followed by post hoc test as given in the code below. Am I right in my model definition, given the problem data structure. in the example, i have used column names of my data frame so that it is self explanatory. library(reshape) library(nlme) library(multcomp)

Hi, I''ve started looking at ticket 90<http://merb.devjavu.com/projects/merb/ticket/90>and there are a couple of situations that the current implementation doesn''t cater for. 1. Tag Attributes are wiped out. - <tag1 attr1=''1''>Content</tag1> #=> { "tag1" => "Content" } - I think it should return -

Hi Gluster users, We are seeing 'error=No space left on device' issue and hoping someone might could advise? We are using a 12 node glusterfs v10.4 distributed vsftpd backup cluster for years (not new) and recently 2 weeks ago upgraded to v9 > v10.4. I do not know if the upgrade is related to this new issue. We are seeing a new issue 'error=No space left on device' error

Hi,Have you checked inode usage (df -i /lvbackups/brick ) ? Best Regards,Strahil Nikolov On Tuesday, May 2, 2023, 3:05 AM, brandon at thinkhuge.net wrote: Hi Gluster users, We are seeing 'error=No space left on device' issue and hoping someone might could advise? We are using a 12 node glusterfs v10.4 distributed vsftpd backup cluster for years (not new) and recently 2 weeks ago

All, My apologies if this is a little long-winded and stream of consciousness-y :). SUMMARY: Why do we extend ActiveRecord instead of mixing it in to our model classes? Been thinking about my app''s models and starting to want to build something of a hierarchy. I have some commonality across 3 of my model classes and I''d liek to aggregate the behavior in a superclass.

Thanks for your feedback David.... Yes, the intention is to support duck-typing. In my code example, a.attrB1 = 5 .... is probably more accurately stated as ..... a. attr1.attrB1 = 5 Certainly this would be an unsafe call because we would not know that attrB1 is an attribute of attr1 until runtime. I believe this type of call is valid in a language like Python. Are there any

Hi, i have a "place" model with 2 columns (id, name). I''m calling an external api which gives me data to create a new place object. I would like to add the address from the external place to the place object and render it as a json result, without storing it in the database. i don''t get any errors, but the address never shows up within the json output. i''ve

Ran into a confusing situation today. When I mount an xfs filesystem on a server running centos 5.4 x86_64 with kernel 2.6.18-164.9.1.el5, the barrier/nobarrier mount option as displayed in /proc/mounts is always set to "nobarrier" Here's an example: [root at host ~]# mount -o nobarrier /dev/vg1/homexfs /mnt [root at host ~]# grep xfs /proc/mounts /dev/vg1/homexfs /mnt xfs

Hi all, I have a quota problem with xfs (xfsprogs 3.1.7+b1 on debian GNU/Linux 7 -- wheezy) and samba-4.1.19. If I set a user quota to say 10GB, windows explorer reports a 20GB quota of which none used. If I change quota to x, windows explorer reports 2x space of which none used. So I assume samba is somehow getting (albeit incomplete and incorrect) xfs quota info from operating system. disks

Hello, Arel::SelectManager (arel 2.0.9) uses following statement to insert a new record: @engine.connection.insert im.to_sql, ''AREL'', primary_key_name, primary_key_value But in DatabaseStatements insert ist defined as: insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) Actually, Arel::SelectManager does not use the sequence name. This leads to issues

Hi Chris, here is a link to the settings needed for VM storage: https://github.com/gluster/glusterfs/blob/03592930239c3b43cbbdce17607c099ae075fd6d/extras/group-virt.example#L4 You can also ask in ovirt-users for real-world settings.Test well before changing production!!! IMPORTANT: ONCE SHARDING IS ENABLED, IT CANNOT BE DISABLED !!! Best Regards,Strahil Nikolov? On Mon, Jun 5, 2023 at 13:55,