Displaying 20 results from an estimated 10000 matches similar to: "mysql string"
2005 Aug 15
2
randomForest Error passing string argument
I'm attempting to pass a string argument into the function
randomForest but I get an error:
state <- paste(list("fruit ~", "apples+oranges+blueberries",
"data=fruits.data, mtry=2, do.trace=100, na.action=na.omit,
keep.forest=TRUE"), sep= " ", collapse="")
model.rf <- randomForest(state)
Error in if (n==0) stop ("data(x) has 0
2010 Aug 11
1
How to calculate the concentration
Hi, folks,
######
food=c('fruit','fruit','fruit','drink','drink','drink')
type=c('apple','apple','orange','water','soda','soda')
value=c(2,3,1,5,7,6)
data=data.frame(food,type,value)
share=c((2+3)/(2+3+1),5/6,1/6,5/(5+7+6),13/18,13/18)
2007 Feb 26
1
match() function with a little enhancement
Dear R users,
I was wondering if R has a built-in function doing the following :
my_match(values_vector,lookup_vector)
{
for each value of values_vector :
if value %in% lookup_vector, then value is unchanged
else, value is changed the the closest element of lookup_vector, "closest"
meaning "the one that would come just after if we sorted them using order()"
}
For example :
2010 Jan 08
2
How to Merge based on Rows
Let's say that I have a bunch of matrices.
They look like this (pardon using fruit for examples, my actual data tables
are far too enormous):
Matrix1
Apples Oranges Pears
A 5 6 7
B 5 3 4
C 8 9 10
D 11 13 14
E 15 3 8
F 1 4 5
2011 Feb 18
2
xyplot formula
df=data.frame(country=c("A","A","A","B","B","B"),
food=rep(c("Apples","Pears","Bananas"),2),
X2000=c(4,5,6,7,6,8),
X2001=c(4,5,6,7,6,8),
X2002=c(4,5,6,7,6,8),
X2003=c(4,5,6,7,6,8));
I have data in the above form trying to get a plot of each fruit over time
year conditioned on country and
2003 Aug 22
0
mangia a colori (PR#3914)
Mangia a colori II!
Keywords Population, health promotion/Public Theories, Methods & Perspectives
Abstract
An initiative of health-promotion to the expansion of the "instruments" able
to assure the control to the population on their own level of health, to
improve it through activity that partly concern to the sanitary system and
partly to other sectors, with the use of internal
2011 Feb 18
1
plot3d, color points by group
Hello
I've created a 3d scatterplot, and had no problems labeling the points.
However, I've been really struggling to change the color of the points based
on a factor (see 'group' below). Is such a thing possible?
My data look like this:
food group x y z
apple fruit 0.216 -0.112 -0.893
orange fruit 0.814 0.097 0.460
broccoli veg -0.239 0.240 -0.425
banana
2011 Feb 03
0
Select just numeric values from rows
Terry
Any good?
list <-"A B C N1 N2 N3 N4 N5 N6 N7 N8 N9 N10
Apples Bananas Peaches 1 2 3 4 5 6 7 8 9 10
Oranges Kumquats Plums 1 1 3 5 5 5 7 6 6 12
Pears Kiwis Grapes 2 4 6 8 5 6 7 6 9 1"
d = read.table(textConnection(list), header=TRUE)
Nrowsums = apply(d[,sapply(d,is.numeric)],1,sum)
HTH
Pete
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2006 Sep 01
1
Reading many files at once
dear group,
i have 100 files starting with 'hsa-*'.
ex. file:
fruit p-value
------------
apple 0.0003
orange 0.004
kiwi 0.0003
peach 0.0004
I want to read all these files and create a single
matrix. here each file may have different fruit names.
in the matrix i want to have a union of all fruits and
those should be the rows in the matrix and file names
should be columns.
2009 Feb 19
2
counting strings in a column
Dear All,
I have a query : what is the command to count number of repeated words in a
column.
for ex:
a =
oranges
oranges
apples
apples
grape
oranges
apple
pine
the result should be
oranges 3
apples 3
grape 1
pine 1
is there an easy way for this.
Thanks,
Nataraju
GM R & D
Bangalore
--
"No relationship is Static .. You either Step up or Step down"
[[alternative HTML
2013 Sep 13
2
xtable use plus minus
I am using a similar dataset to the following:
a= c("Fruits", "Adam","errorA", "steve", "errorS",
"apples", 17.1,2.22, 3.2,1.1,
"oranges", 3.1,2.55, 18.1,3.2 )
a_table=data.matrix(t(matrix(a,nrow=5)))
I would like to plus minus every second column starting from errorA (using
xtable/ hmisc)
example output (ignoring
2013 Sep 10
0
xtable Highlight the lowest and plus minus
I am using a similar dataset to the following:
a= c("Fruits", "Adam","errorA", "steve", "errorS",
"apples", 17.1,2.22, 3.2,1.1,
"oranges", 3.1,2.55, 18.1,3.2 )
a_table=data.matrix(t(matrix(a,nrow=5)))
I would like to highlight the smallest value in the Adam and Steve columns
and, also plus and minus the errors
2006 Apr 14
0
Gruff on Windows
Has anyone achieved a stable deployment of Gruff with Rmagick on Windows?
I''ve been playing around with this on Instant Rails and after installing the
RMagick win 32 gem (local gem install as per instructions on web) and then
Gruff on top of that. I did a test controller method that rendered the fruit
pie chart as per the examples on the gruff site. This worked. However, when
I refreshed
2008 Mar 19
1
Radio Buttons or similars
Hello companions!!!
I have a function that creates a Radio Buttons, and I need that this
function return the selected value in the Radio Buttons. I would like that,
if somebody know as I could return the value, you say me as do it.
Next, I show the function
function1<-function(){
require(tcltk)
tt <- tktoplevel()
rb1 <- tkradiobutton(tt)
rb2 <- tkradiobutton(tt)
rbValue <-
2006 Apr 04
4
Help with many-to-many using :through
I am using many-to-many using :through since I need to store additional
information in the join table.
I am doing this and it seems to work. I want to verify that this is the best
way to do this.
Tables
foods - id, food
foodallergies - food_id, symptom_id, a few other columns
symptoms - id, symptom
Models
class Food < ActiveRecord::Base
has_many :foodallergies
has_many :symptoms,
2006 Feb 24
1
Help a n00b?
So I''m trying to do that hot new thing with AJAXy forms:
http://idiet.toasterwaffles.com/foods/list
Here''s the relevant code in list.rhtml (for the form portion)
<tbody>
<%= render_collection_of_partials "list_stripes", @foods %>
</tbody>
<tfoot>
<tr id="addFood"><%= form_remote_tag( :html =>
2006 Apr 06
4
Record retrieval in Many-to-many using :through not working
Hello,
I get an error while retrieving records from the following model structure.
Tables
foods - id, food
foodallergies - food_id, symptom_id, a few other columns
symptoms - id, symptom
Models
class Food < ActiveRecord::Base
has_many :foodallergies
has_many :symptoms, :through => :foodallergies
end
class Symptom < ActiveRecord::Base
has_many :foodallergies
has_many :foods,
2002 Jul 02
0
Newsletter & Rigatoni Salad Recipe
2004 Apr 23
1
symlink bug still not fixed
Hi.
I found and reported a bug about a year ago regarding
symbolic links but haven't seen any mention of it
since and it is still present in 2.6.1-pre2.
Just want to make sure it isn't forgotten.
It can be reproduced by synchronizing two directories,
one of which contains a normal file and the other has
a symlink of the same name. With the archive, update
and backup options set, rsync
2006 Dec 15
1
How can I have two controllers use the same 'category' model if they aren't related?
Hi all,
I have two controllers - "foods" and "receipes" which map to models.
Each one will have multiple categories, but the categories are
completely different for each one - they don''t share the same
category. So they aren''t related at all.
If I wanted to do this using resources, what is the best way to set
this up? If I setup a categories controller and