Displaying 20 results from an estimated 400 matches similar to: "Elegant way to transform dataframe?"
2010 Jan 29
3
Applying a function on each columns of a matrix
Hello everyone, I have the following matrix
[,1] [,2] [,3] [,4]
[1,] 0.002809706 0.0063856960 0.0063856960 0.011749681
[2,] 0.004893124 0.0023118418 -0.0005122951 -0.014646465
[3,] 0.003547897 0.0063355297 0.0030410542 0.011403953
[4,] 0.004838299 -0.0040383645 -0.0090406831 -0.011027569
[5,] 0.035648755 0.0334815590 0.0380977404
2000 Sep 20
1
'fixing' list components
I have a list x (say) that will contain many inputs to and outputs a model.
x$input1 <- assign.input1(parameter1, parameter2)
is one way to assign input1, but it would be neater to be able to do
assign.input1(x, parameter1, parameter2)
Is this a good idea? If so, what is a good way to do it?
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r-help mailing
2007 Mar 27
1
basic handling of data.frame
Hello,
I'm new to R but wan't to use it to compute the statistics of my medical study.
The study includes several parameters for a number of patients. Each
parameter was assessed by a number of readers, once with a special
condition, once without.
Now I have a data.frame with colums like:
PatientID, ReaderID, SpecialCond(yes/no), Parameter1, Parameter2.....
the rows are not sorted, and
2006 Oct 05
2
A statement over multiple lines (i.e. the ... feature in Matlab)
Hello again list,
I thought I'd start a new thread, seeing as it's completely different
from my previous question. Some functions I have written require many
parameters, and so do not fit nicely into an 80 column width display.
This is usually avoided, by spreading that particular statement over
a few lines. This is something that I do in Matlab with the following:
myFunc(
2002 Nov 09
2
Nonlinear regression and categories
Hi there:
I'm trying to run a large number of nonlinear regressions on a time
series dataset, where the data will be formatted something to the effect of:
ObservationID,time,dependentvar
I'll have a number of time and dependentvars for each observation, and I
want to apply a nonlinear regression to one ObservationID at a time, and I
want to have a dataset that is the parameter
2007 Nov 01
1
structure data
Hello,
I have a quite simple question, I guess. I have a data frame and I would like
to process the data in several ways.
The processing is dependent on grouping (factors) and the parameter itself.
Meaning for parameter1 in the df, I would like to calculate the mean and sd
when grouping by factor1. But parameter2 might be different. I thought of a
structure like this:
group1
param1
2006 Oct 08
9
Organizing tests and mocha expectations
I''m simultaneously getting into using Mocha and RSpec-style tests
(courtesy of the simply_bdd plugin) and I''m struggling with some
issues while trying to organize my specs/test. Here''s a code example
illustrating the problem:
context "update cliient invalid data" do
include ClientsControllerSpecHelper
specify "should render edit form" do
2007 Jul 18
1
passing a parameter to a file from command line
Hi,
I have a file fileFoo.R, say that contains these two lines, invoking
function foo that is specified in "foo_details.R":
source("foo_details.R")
foo(parameter1)
I want to specify and pass parameter1 in my command line when invoking R
in linux: R --no-save <fileFoo.R.
How can I do that?
And how can I retrieve the value of parameter1 in my fileFoo.R function
2011 Sep 12
2
regression on data subsets in datafile
I have data of the form
tC <- textConnection("
Subject Date parameter1
bob 3/2/99 10
bob 4/2/99 10
bob 5/5/99 10
bob 6/27/99 NA
bob 8/35/01 10
bob 3/2/02 10
steve 1/2/99 4
steve 2/2/00 7
steve 3/2/01 10
steve 4/2/02 NA
steve 5/2/03 16
kevin 6/5/04 24
")
data <- read.table(header=TRUE, tC)
close.connection(tC)
rm(tC)
I am trying to calculate rate of change of parameter1 in
2012 Jun 18
1
using hiera for node classification
Hi All,
I''ve been trying to use Hiera for node classification, my sit.pp is simple:
node default {
hiera_include("classes")
}
which has been working well with simple class definitions like:
user@host$ cat testagent.yaml 2012-06-18 14:55:48 jon pts/13
---
classes:
- motd
Is anyone doing this in production? I''ve seen a little about this on line
but it
2020 Jun 12
2
Send message to AMI from dialplan
Is it possible to simply send a message to appear as an AMI message/event,
from the dialplan? For example
exten =>123,1,ami(myEvent, param1, param2)
and in the AMI a message appears like:
Event: myEvent
Privilege: call,all
Channel: PJSIP/misspiggy-00000001
Uniqueid: 1368479157.3
ChannelState: 3
ChannelStateDesc: Up
CallerIDNum: 657-5309
CallerIDName: Miss Piggy
2012 May 09
0
Error in outer() : dimension mismatch
Dear R users,
I am a new R user and have some difficulty
understanding the functioning of “outer”, where my question is from. I have
read the posts related to the questions on the outer function, but
unfortunately could not figure out where my mistake is.
I have a function with two variables and
three parameters (a density function that is not standard) and I want to draw
the contourplot along
2013 Dec 02
1
Class parameter flexibility with ENC, hiera or both
Dear puppetteers,
I am having a philosophical question about parametrized classes.
When building modules, one wants to be as flexible as possible, to try
to target as many puppet flavors as possible. This is our target:
- Foreman users, using foreman as an ENC with smart variables (or
potentially any other ENC, but I would say this is the most widespread one).
- Pure Puppet''s site.pp
2006 Apr 29
10
A Good Tutorial on Params and Variables
I have found various posts about instance variables, session variables
and parameters (each of which seems to use differnet syntax and have
different view on the "best practice") I would like to find a single,
reliable source that provides a good overview on all of it.
Specifically, I would like to learn how to pass parameters between
controllers and how to set session variables so
2010 Jan 26
3
Apply a function on an array with the parameter as an array
Hello R buddies, I want to apply a function on an array but for each element
of the array I want to use a different parameter, So here is how I tried to
enter the function:
apply(as.matrix(X),2, function, parameter1 = arrayOfParameter)
I put X as a matrix because it was initially an element of a list. It
returns me an array with the same length as X but with values that I don't
even
2011 Oct 24
1
[LLVMdev] Function pointer parameters in PTX backend
Hi everybody,
I am trying to produce ptx code starting from OpenCL C.
I am experiencing a problem concerning pointer parameters.
Here follows an example:
kernel void function(__global float* parameter1) {}
NVIDIA NVCC Compiler:
.entry function(
.param .u32 *.ptr* .global .align 4 function_param_0
)
{
ret;
}
CLANG + LLVM PTX backend
// (skipping builtin functions definitions)
.entry
2008 Feb 13
8
comparing ajax.updater div in js
This is really bugging me no matter what I''m trying.
In javascript, I''m using the ajax.updater, and it (obviously) writes
back out to a div. I want to then compare what was echoed out into
this div (which came from the php file I listed in ajax.updater) with
a string.
test should equal "SomeString" because that is what is being echoed
out to
2009 Feb 19
0
Zelig method setx()
Hello,
I am attempting to "automate" a Bayesian normal linear regression
using Zelig. Basically, I have a list containing several zelig()
objects, each having a different formula, same data set, and same
model (normal.bayes).
My problem lies in the setx() method, where I am setting a numeric
parameter to a value other than the mean. This is straightforward if
I input the parameters
2006 Jul 18
5
a best way to write this.
I have a form, with 3 fields, then in my controller I get the paramters
to run a query but I don''t want to filter with paramters if they are
nil or blank...
I''m doing this
@condition = ''''
if(params.....)
@condition = @condition + " myparamter = " + params[.....
if(params.....)
@condition = @condition + " myparamter = " +
2009 Jul 17
6
Solving two nonlinear equations with two knowns
Dear R users,
I have two nonlinear equations, f1(x1,x2)=0 and f2(x1,x2)=0. I try to use optim command by minimize f1^2+f2^2 to find x1 and x2. I found the optimal solution changes when I change initial values. How to solve this?
BTW, I also try to use grid searching. But I have no information on ranges of x1 and x2, respectively.
Any suggestion to solve this question?
Thanks,
Kate