Displaying 2 results from an estimated 2 matches for "building_type".
2007 Aug 22
3
tackle memory insufficiency for large dataset using save() & load()??
..._______________________________
My original dataset is a .csv dataset (w/ 2M records) with 4 variables:
job_id (Primary key, won't be used for analysis, just used for join tables),
sector_id (categorical variable, for 19 industry sectors),
sqft (con't variable for square footage),
building_type (categorical, for 2 building types)
some values of sqft were inputed wrong, so i'd like to set sqft<1 to "NA" and then use aregImpute() to impute those NAs.
Problem: the origianl dataset(.csv format) is too large. though i could read that dataset into R, i could not get ar...
2006 Jun 27
3
Weird ActiveRecord Foreign Key Problem
Hello to all,
I ran into a weird problem with an ActivRecord. I have a table named
"build_order" with a column named "type" that is a foreign key to a
table called "building_type". In a controller I try to read all the
build_orders with "BuildOrder.find :all" and get the following error and
stack trace:
(eval):1:in `instance_eval'': compile error
(eval):1: syntax error
Object::0
^
c:/programme/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14...