search for: phdhwang

Displaying 17 results from an estimated 17 matches for "phdhwang".

2006 Oct 19
2
How to get multiple Correlation Coefficients
...no results. Could you tell me how to correct the script? Thanks in advance, vars <- names(sdi) for (i in 1:length(vars)) { for (j in 1:length(vars)) { paste(vars[i]," and ", vars[j]) polychor(vars[i], vars[j]) # corr } } -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : phdhwang at gmail.com
2005 Jul 06
2
How to sample x-y coordinates from GIS files
...data (sp called shape GIS files) under the total sum resctricted. For example, I would like to take random smaples under the 1000 persons in each city. The randomly sampled persons should not be over 1000 any case. Thank you in advance, -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3283 Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2006 Mar 05
2
what is scale function? Is it for variable transformation?
...Owdy I read R books about scale function for variable transformation. Acoording to this book scale function leads me to better regression results. Or am I worng? I hope somebody tell me about a scale function? Is it for variable transformation? -- Kum-Hoe Hwang, Phone : 82-31-250-3516Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2007 Feb 14
1
Any packages for conducting AHP( Analytic Hierarchy Process) data
...i, R Lovers! I have some survey data. I'd like to run R or R packages for processing data inputted from AHP(Analytic Hierarchy Process) survey. Are there any R packages or subsititues for running data from AHP survey. Thanks in advance, -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516 Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2006 May 18
1
how to get coefficients of regression or Anova
...2e-16 *** nemp 2.87e-06 1.04e-07 27.63 < 2e-16 *** as.factor(corridor1) ????? ?????? ????? ?????* But I do not know how to get coefficients of regression or Anova model. Thanks in advance, -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2005 Feb 11
3
How to solve error : "cannot allocate vector of size 1208235 Kb"
...sfr.listw, method="eigen") Error: cannot allocate vector of size 1208235 Kb > memory.size(max=FALSE) [1] 17862584 > memory.limit(size=NA) [1] 3145728000 > -- Kum-Hoe Hwang, Ph.D. Kyonggi Research Institute, Korea (ROK) (Urban Planning and GIS) Phone : 82-31-250-3283 Email : phdhwang at gmail.com
2006 Oct 12
1
How to Get Categorical Correlation Coefficient
...fference is that "A" is replaced with "0", "B" with "1", "C" with "2", ..... Could you tell me why they are different, and which correlation coefficient is correct? Thank in advance, -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : phdhwang at gmail.com
2009 Jan 15
1
How to Solve the Error( error:cannot allocate vector of size 1.1 Gb)
...TermDocMatrix(corpus) > findAssocs(tdm, "city", 0.97) error:cannot allocate vector of size 1.1 Gb ------------------------------------------------------------- > ################################ Thanks for your precious time, -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3516 Email : phdhwang at gmail.com
2009 Jan 10
1
Help needed for Loading "tm" package
...ntrol = list(reader=readPlain)) Error: could not find function "Corpus" > my.tdm <- TermDocMatrix(my.corpus) Error: could not find function "TermDocMatrix" > my.tdm[1,] Error: object "my.tdm" not found -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3516 Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2006 May 18
1
how to get correct coefficients from lm model
...? Y = 6.07e-01 + 2.87e-06* nemp + 2.44e-02 * as.factor(devt)A - 1.10e-01 * as.factor(devt1)B - 9.19e-03 * as.factor(devt)C And so, my question is "which coefficients should I use for a final model?". Thanks in advance, -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2010 Feb 16
2
Error of Stepwise Regression with number of rows in use has changed: remove missing values?
...---------------------------------------------------------------------------------------- ??number of rows in use has changed: remove missing values? ------------------------------------------------------------------------------------------ -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3516 Email : phdhwang at gmail.com
2007 Feb 14
0
Are there any packages or methods for running data from AHP(Analytic Hierarchy Process) survey?
Hi, R Lovers! I have some survey data. I'd like to run R or R packages for processing data inputted from AHP(Analytic Hierarchy Process) survey. Are there any R packages or subsititues for running data from AHP survey. Thanks in advance, -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : phdhwang at gmail.com
2007 Nov 30
0
How to Compute envelope of Khat in Splancs Package
...ut "poly" like bnd. ------------------------------------------------------- > bnd min max x 160327.0 213371.8 y 390518.3 420704.6 > ------------------------------------------------------ Thank you for your time, --- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516 Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2009 Jan 09
1
[R} how to build TermDocMatrix in tm text mining package of R
...orting a plain text file, and them converting that text file into TermDocMatrix file, etc to me. How can I build a TermDocMatrix of " a plain text document file for text association? Or are there any good manuals? Thank you in advance, -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3516 Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2006 Jul 15
0
How to Interpret Results of Regression in R
...1.940 house2 2.571 1 1.604 house3 3.536 1 1.880 house4 1.766 1 1.329 -------------------------------------------------------------------------------------------------------- -- Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516 Email : phdhwang@gmail.com [[alternative HTML version deleted]]
2005 Feb 19
2
best analysis method : for time series ans cross sectional data
...). What I am focusing on is best method among lm, glm, aov or others not siginificant results. I have wasted too much time for this. I welcome your comments. Thanks a lot, -- Kum-Hoe Hwang, Ph.D. Kyonggi Research Institute, Korea (ROK) (Urban Planning and GIS) Phone : 82-31-250-3283 Email : phdhwang at gmail.com
2009 Jan 15
2
Interface to open source Reporting tools
...gt; ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 10 Jan 2009 11:06:47 +0000 (GMT) > From: Prof Brian Ripley <ripley@stats.ox.ac.uk> > Subject: Re: [R] Help needed for Loading "tm" package > To: Kum-Hoe Hwang <phdhwang@gmail.com> > Cc: R Help mail address <r-help@stat.math.ethz.ch> > Message-ID: <alpine.OSX.1.00.0901101102390.91535@tystie.local> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Sat, 10 Jan 2009, Kum-Hoe Hwang wrote: > > > Howdy Gurus again &...