similar to: Looking for categorization method/module in R

Displaying 20 results from an estimated 20000 matches similar to: "Looking for categorization method/module in R"

2008 Nov 24
1
RQDA-0.1.5 is released
RDQA is a package for Qualitative Data Analysis built upon R. It works both on the Windows and Linux/FreeBSD platforms. RQDA is an easy-to-use tool to assist in the analysis of textual data. At the present, it supports only plain text format data. All the information is stored in SQLite database via the R package of RSQLite. The GUI is based on RGtk2, via the aid of gWidgetsRGtk2. It includes a
2008 Nov 24
1
RQDA-0.1.5 is released
RDQA is a package for Qualitative Data Analysis built upon R. It works both on the Windows and Linux/FreeBSD platforms. RQDA is an easy-to-use tool to assist in the analysis of textual data. At the present, it supports only plain text format data. All the information is stored in SQLite database via the R package of RSQLite. The GUI is based on RGtk2, via the aid of gWidgetsRGtk2. It includes a
2023 Feb 21
1
MFA variables graph, filtered by separate.analyses
Hi! Apologies if this is not the correct place to ask. I am attempting a MFA analysis of a dataset based on wine chemical and sensory analysis, based on the STHDA tutorial [1]. (I am using this dataset here too, as an example dataset to work on without posting my actual data. I've tried this with both my data and the example data, with the exact same results.) The only issue I am having is
2002 Nov 07
2
Qualitative factors
Hi, I have some doubt about how qualitative factors are coded in R. For instance, I consider a response y, a quantitative factor x and a qualitative factor m at 3 levels, generated as follow : y_c(6,4,2.3,5,3.5,4,1.,8.5,4.3,5.6,2.3,4.1,2.5,8.4,7.4) x_c(3,1,3,1,2,1,4,5,1,3,4,2,5,4,3) m_gl(3,5) lm(y~x+m) Coefficients: (Intercept) x m2 m3 3.96364 0.09818
2012 Sep 06
2
Generalized additive models: Plots for Qualitative Data
Hello, My name is Dontrece Smith. I am creating figures for my GAMs. I change my qualitative variables to 1 or 2 in my dataset, so I would be able to run my GAMs. However, R will only display plots for my quantitative variables and not my qualitative variables. Is there any way to fix this issue? I listed some of my code below: > library(mgcv) This is mgcv 1.7-13. For overview type
2006 Jul 06
1
which data structure for a set of time series ?
Hello, I'm a R newcomer and I'm wondering the kind of data structure that would best fit to my problem: my data are equities (stocks) : so I have a time serie (say 1 year of weekly data), and a bunch of qualitative + quantitative variables : the sector of the stock (biotech/finance...), the geographical region, the name, ISIN code, P/E ratios, whatever... The data.frame is perfect for the
2005 Jul 25
1
ANOVA/aov question
I'm a bit confused about the anova/aov functions. Both seem to rely on data models, where the relationship between the dependent variables and the independent variables can be expressed as a formula. In what I am trying to do, all of my independent variables are qualitative, not quantitative. For example, for each of two options, "option A" and "option B" I have
2011 Jan 08
1
summary(list) is awesome, but I want more than summary
When I load a table from a data source and run summary() on it, the summary gives me basic summary statistics I'm looking for, and it also discriminates between quantitative and qualitative data and summarizes them accordingly. For example, if I do this: mydata <- read.table("data.txt") summary(mydata) I would get output like this: > summary(mydata) County
2008 Jan 21
4
Stationarity of a Time Series
Does anyone know of a test for stationarity of a time series, or like all ordination techniques it is a qualitative assessment of a quantitative result. Books, papers, etc. suggestions welcome. thanks Stephen -- Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are
2009 Sep 02
1
a question for beginner
Hello, i have this dataset http://www.umass.edu/statdata/statdata/data/pharynx.txt. the variables GRADE, T_STAGE anda N_STAGE are qualitative or quantitative variables??? i only have this simple doubt...! another example: why in the dataset ovarian (library survival) the variable ecog.ps: ECOG performance status (1 is better, see reference) it is consider quantitative? Thank's for
2008 Jan 18
3
Select a group of data from a file
Hello everybody! I've a file with several data six variables, three quantitative and three qualitative, I would like to select a group of data from the file to analyze then, i.e: my file is like that (but with 6 variables): Var1 Var2 2 1 5 1 8 1 7 2 3 2 8 2 I want to use only the data where var2 is "1" 2 1 5 1 8 1 Exist a
2012 May 29
3
PROBLEMS with In `[<-.factor`(`*tmp*`, (¿ORDERED FACTOR?)
HI!!! I have a table containing qualitative and quantitative data; one of the columns contains "Level of education", and the possibilities are "none", "High school", "college"; I want to give the value 0 to "none", the value 1 to "High school", and 2 to "college", but I got the following error: In `[<-.factor`(`*tmp*`,
2002 May 28
2
logit regression, test among groups
Dear all: My logistic regression model includes one qualitative and one quantitative predictor variable, aes <- glm(p.a ~ spp * log(light), family=binomial(link=logit)), where spp is abundance of 3 species and light is subcanopy light availability varying from 0 1. I want to test differences among levels of the quantitative variable at a value of x other than the current log(light)=0.
2008 May 27
1
lm() output with quantiative predictors not the same as SAS
I am trying to use R lm() with quantitative and qualitative predictors, but am getting different results than those that I get in SAS. In the R ANOVA table documentation I see that "Type-II tests corresponds to the tests produced by SAS for analysis-of-variance models, where all of the predictors are factors, but not more generally (i.e., when there are quantitative predictors)." Is
2007 Aug 24
4
perception of graphical data
Hello, I apologize that this is off-topic. I am seeking information on perception of graphical data, in an effort to improve the plots I produce. Would anyone point me to literature reviews in this area? (Or keywords to try on google?) Is this located somewhere near cognitive science, psychology, human factors research? For example, some specific questions I have are: I recall as a child
2012 May 29
1
Factor problem
HI! I am working with a table with quantitative and qualitative data; one of the columns is "Level of education", which is an ordered factor. I want to get rid of the ordered factor, and set my own scale. How to do that? All the time I get the following error: In `[<-.factor`(`*tmp*`, educa = "Less than high school", value = 3) : invalid factor level, NAs generated
2003 Aug 12
1
classification with quantitative variables
Hi all, I want to conduct a cluster analysis with quantitative variables. More precisely, it concerns binary and non-ordered categorical variables. For such data, various similarity measures have been proposed, such as the Jaccard index or the simple matching index. So, is there a package such as mva or multiv in the case of quantitative variables? Could you indicate me reviews, papers or
2009 Sep 04
1
DOE in R?
Hello! This is not a topic I am well versed in but required to become well versed in...I welcome any assistance! Using R, I want to create an optimal design for an experiment. I'll be analyzing the results with logistic regression or some generalized linear model. I am thinking that the algdesign package can help (but no idea where to start?). I'm presenting an example here that I have
2007 Aug 20
2
[Weft QDA users] Weft on Ubuntu -- Ctrl-shortcuts NOT working?
Hi -- have just followed Christophe''s notes to get Weft QDA up and running on my IBM Thinkpad T20 w/Ubuntu 6.06 (Dapper Drake). Am just going thru the manual and trying various things, as I''m new to qualitative analysis AND new to QDA tools. Anyway, one thing I''ve found is that many (and maybe ALL?) of the CTRL-shortcuts mentioned in the documentation are not working
2023 Feb 21
1
MFA variables graph, filtered by separate.analyses
Hi Gavin, I can't work through this right now, but I would start by looking at the 'hetcor' package to get the correlations, or if they are already in the return object, build a plot from these. Jim On Wed, Feb 22, 2023 at 4:24 AM gavin duley <gduley at gmail.com> wrote: > > Hi! > > Apologies if this is not the correct place to ask. I am attempting a > MFA