Displaying 20 results from an estimated 6000 matches similar to: "Filtering output"
2008 Aug 05
1
RESHAPE cast help.
I have a set of data that is basically sales figures for a given year. It has columns for Yeaqr, Day Of Year, Sku, SubCatetory, and Category. The first few lines of data look like:
Year DayOfYear Sku Quantity CatId Category SubCategory
1 2007 1 100091 1 10862 HOLIDAY Christmas
2 2007 1 100138 1 11160 PET COSTUMES Famous
2008 Jul 26
1
Simple vector question.
I have some data that I read in via read.csv:
sales2007 <- read.csv("Total2007.dat", header=TRUE)
The data looks like:
> sales2007[1:605,]
Year DayOfYear Sku Quantity CatId Category SubCategory
1 2007 1 100091 1 10862 HOLIDAY Christmas
2 2007 1 100138 1 11160 PET COSTUMES Famous (Licensed)
3 2007
2009 Mar 11
1
Reshape question.
This hopefully is trivial. I am trying to reshape the data using the reshape package.
First I read in the data:
a2009 <- read.csv("Total2009.dat", header = TRUE)
Then I trim it so that it only contains the columns that I have interested in:
m2009 <- melt(a2009, id.var=c("DayOfYear","Category","SubCategory","Sku"),
2008 Jul 15
4
Iterations
I have a command that reads in some data:
x <- read.csv("Sales2007.dat", header=TRUE)
Then I try to organize the data:
sc <- split(x, list(x$Category, x$SubCategory), drop=TRUE)
Then I want to iterate through the data. I was able to get the following to run on the R console:
for(i in 1:length(sc))
{
sum(sc[[i]]$Quantity)
}
But notiing is primted on the console. I find
2008 Aug 09
1
Reshape set operations?
I have mange to use the library reshape to give me data structures that I want. Specifically:
m2008 <- melt(t2008, id.var=c("DayOfYear","Category","SubCategory","Sku"), measure.var=c("Quantity"))
m2007 <- melt(t2007, id.var=c("DayOfYear","Category","SubCategory","Sku"),
2006 Apr 15
8
Inheritance in Rails - I need some help
I''ve got a model, "category" and another model "subcategory." Each
subcategory belongs_to a category, and a category has_many
subcategories.
What I need to do is set it up so that I can search Category and
Subcategory with one .find call. So:
Category.find(:all, <etc)
will find categories and subcategories.
Now, I believe this can be done by making
2006 Jul 23
3
Newbie: Display hierarchical Records in a view
Hi,
I have two models: category and subcategory. (one to many
relationship), and a controller ''home''
I''d like to display all the categories and their sub categories in the
view: home\index.rhtml.
I have a method in the ''home'' controller'' like this:
def list_categories
@categories = Category.find(:all)
end
This list all the categories
2006 Mar 30
5
Heeelp - no idea what''s going wrong.
I''m working on a simple CMS. The main data type are "listings" a listing
habtm (has_and_belongs_to_many) categories and subcategories.
Subcategories belong_to categories. Subcategories are basically the same
as categories, but they are treated differently in a few situations.
The problem is, I can''t seem to write the view/controller/model code
that allows me to
2008 Apr 01
1
Navigation Problems
Hi,
I am having problems with my page. I have a banner and navigation bar in
controller_name.rhtml in app/views/layout. Can someone please help?
Thanks
In the navigation bar, I have the following links:
Category1
Sub-Category1
Sub-Category2
Sub-Category3
Sub-Category4
Sub-Category5
Sub-Category6
In the main content, I have the following links:
Sub-Category1 edit delete
2006 May 07
2
Category and subcategories in database
I have a project I''m trying to decide if I want to use rails for. I''m new
to rails, so I''m not sure how easy it would be to implement something like
this using ActiveRecord. Here''s the situation:
Category > subcategory > subcategory > product
Category > subcategory > product
Some categories will have many subcategories, others few. I want
2007 Jul 08
1
generating a data frame with a subset from another data frame
R gurus,
I have a data set that looks something like this:
Site Species DBH #Vines
G PLOC 45.9 4
G ACNE 23.3 1
G ACNE 12.0 0
G FRAM 35.9 5
G AEGL 11.2 2
N PLOC 77.3 12
N JUNI 78.6 7
N ACNE 18.9 1
N ACNE 15.7 3
N ACRU 35.5 4
H ACSA2 24.1 6
H ULAM 35.2 7
There are 730 individual trees (22 species) from four sites in the
actual data set. I would like to create a second data frame that
2006 Apr 07
13
Pop up menus - any ideas?
I''ve got a menu in which I have all of my categories as links. Each
category also has subcategories. I want to set it up so when you mouse
over the category the subcategories will pop up (to the right of the
main list, but that''s just CSS). This is what I have so far:
<% for category in @categories %>
<a href="#"
2006 May 23
7
has_and_belongs_to_many question
Hello,
I am trying to make the "switchover" to programming my apps in Rails and
have a question about database structure.
In the past i would structure a many to many like this:
categories
----------------------------------------------------
| id | name |
----------------------------------------------------
1 Some Category
2 Another
2008 Dec 25
5
One question about Dynamic Select Menus
Hi all,
Merry X''mas first :-)
I have "Product","Category","Subcategory" 3 Model, and when new
"Product", I want to use "Dynamic Select Menus" just like Ryan
mentioned in http://railscasts.com/episodes/88-dynamic-select-menus
I have everything down. But when I visit the js file, I got following
error
Showing
2009 Oct 15
10
AJAX - how to have multiple select form sets implemented?
hi, there :)
Consider a blogging application whereby a user is trying to add a new
blog.
He/she has to select a category. Upon selecting a category from a drop
down box, a new sub categories drop down box will be created (hence an
AJAX call). Got this implemented and it''s ok.
Now, let''s assume that a given blog can have multiple categories (and
subcategories).
For example, a
2006 Apr 11
2
Finding items from two models - then merging them
I have a model, listings. Listings habtm categories and subcategories,
which are seperate models.
What I want to do is search categories for certain items, like so:
@categories = Category.find(:all, :conditions => ["name LIKE ?",
"#%{:search_string}%"
and subcategories for the same:
@subcategories = Subcategory.find(:all, :conditions => ["name LIKE ?",
2006 Mar 31
7
Checkboxes expand to show new options when checked?
I''m writing a simple CMS where every item ("listing") HABTM categories
and subcategories (which themselves belong_to a category). What I''m
trying to do now is create a UI effect for listing creation: when you go
to create a listing, only the possible categories will be shown, but
when you select a category a set of new categories will be displayed
like so:
Lions
2012 Apr 01
1
indexing in a function doesn't work?
Hello,
I've written a small function that's supposed to save me some time, and
it's ending up killing it- the intention is to iteratively subset a dataset
fram on framevec, fit a model (either lm or nls depending on type) and
return the r2 or AIC from the model, respectively. Although as far as I can
tell in my code the plots are dependent on the fit of the model to the data
and the
2006 Aug 06
1
Newbie: populate 2nd dropdown list based on user''s selection in 1st dropdown list
Hi,
I am creating a form that a user can post a message based on his
selection on category and subcategory. (A category has many
subcategories.)
How do I dynamically populate subcategory dropdown list when user
chooses a category from category dropdown list?
Thanks in advance.
--
Best regards,
Ming Ma
2008 Jul 06
1
What is my replication unit? Lmer for binary longitudinal data with blocks and two treaments.
First I would like to say thank you for taking the time to read it.Here is my
problem.
I am running a lmer analysis for binary longitudinal (repeated measures)
data.
Basically, I manipulated fruits and vegetation to two levels each(present
and absent) and I am trying to access how these factors affect mice foraging
behavior. The design consist of 12 plots, divided in 3 blocks. So each
block