Displaying 20 results from an estimated 1000 matches similar to: "Preserving lists in a function"
2011 Apr 18
4
altering identity column
Hi there,
I have a huge dataframe containing 70,000 observations.
I have filtered this dataframe (let it's name be "transformed_dataframe") as I wanted to select only those observations which are greater than or equal to 60,001 regarding the very first identity column.
So I have a transformed dataframe now including 10,000 obeservations (from 60,001 - to 70,000) and if you send
2012 Jul 09
4
Skipping lines and incomplete rows
I have a text file that has semi-colon separated values. The table is nearly
10,000 by 585. The files looks as follows:
*******************************************
First line: Skip this line
Second line: skip this line
Third line: skip this line
variable1 Variable2 Variable3 Variable4
Unit1 Unit2 Unit3
10 0.1 0.01 0.001
20
2009 Jan 29
1
Multiple tables
Dear list,
I have a set of 100+ variables. I would like to have one by one crosstables for each variable. I started with
table(variable1, variable2)
table(variable1, variable3)
table(variable1, variable4)
...
table(variable2, variable3)
table(variable2, variable4)
...
It seems rather tedious.
Any better ideas around?
Thanks for any help!
Gerit
--
NUR NOCH BIS 31.01.! GMX FreeDSL -
2012 Jan 02
4
Create variable with AND IF statement
Hello,
I'm using SPSS at work but really would like to switch to R. Right now I'm
trying to learn R in reproducing calculations I did with SPSS but am stuck
with something that is quite simple and comprehensible in SPSS-Syntax:
IF (variable1.fac = 0 AND variable2.num = 0) variable3=1.
IF (variable1.fac = 0 AND variable2.num >= 1) variable3=2.
IF (variable1.fac = 1 AND variable2.num =
2009 Dec 04
2
Multiple Channel Variables with AMI Originate
Hi guys I seem to be having a problem, I don't know if it's a bug or whether
I'm just doing it incorrectly.
I want to set about 3 channel variables when I originate a call via AMI.
All the documentation I have found says to do it like this:
Variable: variable1=value|variable2=value|variable3=value
However when I do this it runs them all together and I end up with:
2006 Sep 24
2
printing a variable name in a for loop
Hello,
How do you print a variable name in a for loop?
I'm trying to construct a csv file that looks like this:
Hello, variable1, value_of_variable1, World,
Hello, variable2, value_of_variable2, World,
Hello, variable3, value_of_variable3, World,
Using this:
for (variable in list(variable1, variable2, variable3)){
cat("Hello,", ???variable???, variable, ",
2011 Apr 07
3
Correlation Matrix
Listers,
I have a question regarding correlation matrices. It is fairly straight
forward to build a correlation matrix of an entire data frame. I simply use
the command cor(MyDataFrame). However, what I would like to do is construct
a smaller correlation matrix using just three of the variable out of my data
set.
When I run this:
cor(MyDataFrame$variable1,
2010 Sep 01
8
how to replace NA with a specific score that is dependant on another indicator variable
Hi everyone,
I’m looking for a clever bit of code to replace NA’s with a specific score
depending on an indicator variable.
I can see how to do it using lots of if statements but I’m sure there most
be a neater, better way of doing it.
Any ideas at all will be much appreciated, I’m dreading coding up all those
if statements!!!!!
My problem is as follows:
I have a data set with
2008 May 05
1
Is there any way to find out how a certain functions are implemented in R?
Hello
I wrote a bootstrap program in C language that is called and run by R.
When I tried it, it is slow
and I'm trying to write and run the whole thing in C. But I cannot use
handy functions in R and
need to figure out how to write those functions by myself. Is there
any way that I can get the
actual codes that implement functions in R so that I can translate
them into other languages? For
2009 Dec 01
3
Using two (...) in a function
Hello R-Helpers,
I am not sure if it is a very simple question but I would like to use two
(...) in a function, for example,
this is a script where I would like to input the variable names (in one of
the (...)) and the variances associated to those variables which are not
calculated in the script because there is a specific software to calculate
it (the other (...))
data <- function
2012 Dec 06
1
clustering of binary data
Good morning,
I am analyzing a dataset composed by 364 subjects and 13 binary variables
(0,1 = absence,presence).
I am testing possible association (co-presence) of my variables. To do
this, I was trying with cluster analysis.
My main interest is to check for the significance of the obtained clusters.
First, I tried with the pvclust() function, by using method.hclust="ward"
and
2012 Feb 20
0
repeating or looping within an apply statement to handle multiple variables
Dear R experts,
I would like to please ask for your help with repeating steps in an apply
statement.
I have a dataframe that lists multiple variables for a given id and visit,
as well as drug treatment.
> head(exp)
id visit variable1 variable2 variable3 variable4 drug
1 3 1 13 10 7 11 0
2 3 5 10 15 9 9 0
3 3 12
2011 Mar 28
2
deleting the first two characters in each row of a factorized column
Hello,
I'd like to ask you something again.
I have a database and it has a column which looks like this one here:
small_factor <- factor(c("d_variable1","d_variable2","d_variable3"))
small_factor
Now the thing is that I would like to convert each element of this factorized column. Basically I want to rewrite the words in it without the first two characters:
2006 Apr 11
2
variable-substitution / command-substitution
Hello,
I have about 2000 data files which I want to analyse.
The file names are all very similar =>
p"variable1"_t"variable2"_c"variable3".txt
There aren?t so much different variables (about 70) , just different
combinations of them.
To allow an easy way of handling those data files I was wondering
whether R is able to do variable-substitution
2012 Jan 26
2
R extracting regression coefficients from multiple regressions using lapply command
Hi, I have a question about running multiple in regressions in R and then
storing the coefficients. I have a large dataset with several variables,
one of which is a state variable, coded 1-50 for each state. I'd like to
run a regression of 28 select variables on the remaining 27 variables of
the dataset (there are 55 variables total), and specific for each state, ie
run a regression of
2012 Jan 22
1
how to load R data file into a structure?
Hi all,
I have already some important variables in the current R session;
and I wanted to load some rData file which was saved during the last R
session using "save.image"...
But how do I avoid the newly loaded data/variables messing with my existing
data/variables?
In Matlab, I can do:
mynewdata=load("imagefromlastRsession.rData")
and then I can access the variables
2011 Feb 08
2
Extrcat selected rows from a list
Hi,
I have two lists
1) List1- 30,000 rows and 104 columns
2) List2- a list of 14000 selected rownames from List 1
Now, I want to extract all the 104 columns of List1 matching with the 14000 selected rownames from List2.
Psedocode will be something like this:
match rownames(List2) with rownames(List1)
extract selected matched 104 coloumns from (List1)
strore in-> List3
So the
2006 May 17
9
Render No Layout?
Hi guys,
Am having a problem.
I have this def in my index controller that works like this:
def do_something
$a = variable1
$b = variable2
$c = variable3
$d = ""<script language=\"Javascript\"> \n new Insertion.Bottom(''#{$c}'',
''#{$a} - #{$b}''); \n </script>"
$trigger = "1"
render(:partial =>
2012 Apr 02
5
Usando R CMD BATCH no me funciona savePlot()
Buenas tardes:
Hasta ahora he utilizado savePlot() en ejecuciones de R en Windows, donde lo
que hago es grabar la ventana de gráficos mediante dev.cur() en formato pdf.
Concretamente éste es el código:
> savePlot(filename = ruta_pdf, type = "pdf", device = dev.cur(),
restoreConsole = TRUE)
Este comando está dentro de un bucle de "n" ejecuciones, por lo que guardo
un pdf por
2009 Jul 30
3
What is the best method to produce means by categorical factors?
I am attempting to replicate some of my experience from SAS in R and assume
there are best methods for using a combination of summary(), subset, and
which() to produce a subset of mean values by categorical or ordinal
factors.
within sas I would write
proc means mean data=dataset;
class factor1 factor2
var variable1 variable2;
RUN;
producing an output with means for each variable by factor