search for: cleland

Displaying 20 results from an estimated 520 matches for "cleland".

2006 Nov 23
1
loess lines in xyplot with two or more variables on the left side of a formula
...same panel. I'm able to plot each series in the same panel like this: library(lattice) xyplot(IDUPREV + VALIDAT ~ YEAR | MSA, data = df, panel = panel.superpose, type="l") How could I change that so that panel.loess() is applied separately to each series? thanks, Chuck Cleland -- Chuck Cleland, Ph.D. NDRI, Inc. 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894
2004 Jun 09
3
Dot chart question
Running R 1.8.1 on a Windows machine In dotchart, I would like to shrink the labels on the tick marks (that is, the numbers) without shrinking anything else. I could not find this in either the Rhelp archives or in ?dotchart, which recmmends cex to avoid 'label overlap', but cex shrinks all the characters in the plot. Is there a way to do this? Thanks Peter Peter L. Flom, PhD
2007 Jan 27
3
how to handle a longitudinal data
i have a data set with repeated measures on same people, structure like below: id x1 x2 ... 001 10 20 ... 001 8 45 ... 001 4 2 ... 002 .... 002 ... 002 .... 002 .... 003 .... ....... what is the easist way to show how many observations for each subject id? [[alternative HTML version deleted]]
2008 Dec 17
1
Extract Data from a Webpage
...rovidersearch.take_to_rpt?P1=3489&P2=11490 Based on searching R-help archives, it seems like the XML package might have something useful for this task. I can load the XML package and supply the url as an argument to htmlTreeParse(), but I don't know how to go from there. thanks, Chuck Cleland > sessionInfo() R version 2.8.0 Patched (2008-12-04 r47066) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats graphics...
2007 Dec 19
3
median of binned values
Dear list, I have a vector (array, table row, whatever is best) of frequency values for categories (or bins), and I need to find the median category. Trivial to do by hand, but I was wondering if there is a means to do it in R in an elegant way. The obvious medioan(vector) returns the median frequency for the binns, and that is not what I want. i.e,: freq cat1 1 cat2 10
2004 Jun 06
4
Request help writing a function
I have been wrestling with this function for quite a while, and am not making headway. 1) I want to apply a function to the following columns of a dataframe: myfunction. <- apply(ph5028[,c(83:107)],2,function(x) ... 2) Within each of the above columns there is a single numeric code, 1, 2 or 3 or an NA. 3) My goal is to determine the percent of time each person used a 2 code. So if a person
2006 Jan 11
3
SPSS and R ? do they like each other?
... and is there also such a nice tool (like spss.get) for exporting data frames to SPSS? write.table does not keep the data frame labels - neither did the other exporting tools that I found. Thanks! Michael [[alternative HTML version deleted]]
2006 Nov 29
3
Aggregating data
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1999 Jul 12
0
Re: S+ code
Dear Mr. Cleland, SEM-ueser, R-User, ... there isn't s-plus or R (a GNU-free version of the programming language S) code for structural equation modelling. I always wondered why. I personally think the language S, with the implementations S+ and R, is a good-perhaps the best-environment for statistical ana...
2005 May 19
2
laten class analysis
Dear List, just a little question, I am interested in Latent Class Analysis and I guess if there is a package for this pourpose thank for you help, Simone
2008 Jan 18
1
Assigning into each of a list of dataframes
....9865388 0.96288517 4 0.5087024 0.42044870 5 0.9175345 0.09447951 $df2 A B 1 0.3887178 0.2256608 2 0.2642189 0.2135938 3 0.3881635 0.2328115 4 0.9060760 0.1013091 5 0.4578424 0.8167602 I want the variable Y to be added to each data frame in mylist. thanks, Chuck -- Chuck Cleland, Ph.D. NDRI, Inc. 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894
2007 Sep 19
2
By() with method = spearman
I have a data set where I want the correlations between 2 variables conditional on a students grade level. This code works just fine. by(tmp[,c('mtsc07', 'DCBASmathscoreSPRING')], tmp$Grade, cor, use='complete', method='pearson') However, this generates an error by(tmp[,c('mtsc07', 'DCBASmathscoreSPRING')], tmp$Grade, cor, use='complete',
2010 May 13
3
How ls() only functions or anything else but functions?
Hello, How ls() only functions or only data objects (basically anything other than functions) such as data.frame, numeric ...? John [[alternative HTML version deleted]]
2008 Apr 14
3
Power curves
Hi, I am trying to create a power curve to show how the power of a t-test varies depending on the mean. Any ideas how I should go about this? Louisa _________________________________________________________________ [[alternative HTML version deleted]]
2005 Nov 10
2
polynomials transformation
Dear All, Need some help in polynomials transformation to get the coefficients. I have tried "poly.transform" as applied in S-plus but it does not work. Thanks in advanced for any helps. Regards. Abd. Rahman Kassim (PhD) Head Forest Ecology Branch Forest Management & Ecology Program Forestry and Conservation Division Forest Research Institute Malaysia Kepong 52109 Selangor,
2006 Aug 24
5
xyplot tick marks and line thickness
Hello, A made a xyplot using the lattice library in R (latest version). The publisher of our paper has requested: 1. all tick marks should point inwards instead of outwards. 2. All lines should be thicker (lines, axes, boxes, etc. Everything). Lines is easy...I used: lwd=1.5 but what about the lines of the axes, and the lines that build up the plot itself?....? Any
2007 Mar 28
3
multi-level modeling & R?
A colleague was asking me if R does multi-level modelling as opposed to multiple regression. Since I have no knowledge of multi-level modelling (except 5 minutes googling ) I thought that I would as here. Does are offer any multi-level modeling packages? It looked like arm might be one but I was not sure. Thanks
2008 Feb 24
3
Newbie: Where is lmFit function?
Hi Everyone, I am trying to use lmFit function; however, i cannot find it function anywhere. I have been trying to find the function in Bioconductor and elsewhere. I re-install bioconductor source, update package and update R as well. no luck Is there a command in R where i can just type, and it will download it for me? -- View this message in context:
2006 Feb 28
2
vector math: calculating a rolling 12 row product?
I have a dataframe of numeric values with 30 ?rows? and 7 ?columns?. For each column, beginning at ?row? 12 and down to ?row? 30, I wish to calculate the ?rolling 12 row product?. I.e., within each column, I wish to multiply all the values in row 1:12, 2:13, 19:30. I wish to save the results as a new dataframe, which will have 19 rows and 7 columns.
2008 Jul 29
1
Problem reading a particular file with read.spss()
...eeds to close. We are sorry for the inconvenience." It get a similar result trying to load the file under Rterm.exe. The file opens without any trouble in SPSS version 16.0.2 (April 10, 2008). For anyone willing to investigate, I placed a copy of the SPSS file here: http://www.chuckcleland.net/mySPSSfile.sav I would be grateful if someone could help to figure out why this file causes a problem. thanks, Chuck -- Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917)...