Displaying 20 results from an estimated 1000 matches similar to: "UML Class and Object Diagrams in R"
2010 Jan 04
2
MLE optimization
Folks,
I'm kind of newbie in R, but with some background in Matlab and VBA
programming. Last month I was implementing a Maximum Likelihood Estimation
in Matlab, but the algorithms didn't converge. So my academic advisor
suggested using R. My problem is: estimate a mean reverting jump diffusion
parameters. I've succeeded in deriving the likelihood function (which looks
like a gaussian
2009 May 10
4
How to generate UML diagrams from existing ruby code?
Hi,
thanks for reading. Till now, I''ve used railroad to visualize my
models. But as far as I can see, there''s no possibility to add
information about the model class methods. Methods are only added to a
diagram, if you visualize your controllers. Is there a way to change
this behavior?
I''ve looked out for something else and found ''ruby-uml'', seems to
2010 May 21
8
Designing An Application (UML, Class Diagrams)
Hi
Is there any freeware anybody would recommend for showing database
models and how they relate to each other? I''m picking up an app
another developer left in a mess and I''m trying to sort it out.
Diagrams would be a great help.
Suggestions?
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2010 Mar 09
5
data frame select max group by like function
Hi, I have a data frame with 3 columns: ID, year and score. How can I
select for each unique ID, the year that has the max score? For
example, for data frame
ID, year, score
tom, 1995, 88
rick, 1994, 90
mary, 2000, 97
tom, 1998, 60
mary, 1998,100
I shall have
ID, year, score
tom, 1995, 88
rick, 1994, 90
mary, 1998,100
Thanks,
Richard
[[alternative HTML version deleted]]
2009 Apr 04
1
error in trmesh (alphahull package)
Hello R community,
I have cross-posted with r-sig-geo as this issue could fall under either
interest group I believe.
I just came accross the alphahull package and am very pleased I may not
need to use CGAL anymore for this purpose. However, I am having a
problem computing alpha shapes with my point data, and it seems to have
to do with the spatial configuration of my points (which form
2009 Jun 23
2
Long to wide format without time variable
Hi all,
I am trying to convert a data set of physician death codings (each individual's cause of death is coded by multiple physicians) from long to wide format, but the "reshape" function doesn't seem to work because it requires a "time" variable to identify the sequence among the repeated observations within individuals. My data set has no order, and different
2010 Nov 04
5
Sorting data from one column with strings
Hello,
I have tried to find this out some other way, but unsuccessful I have to
try this list.
I assume this should be quite simple.
I have a dataset with 4 columns, "Sample_no", "Species", "Nitrogen",
"Carbon" in csv format. In the species column I have many different
species with varying number of obs per species
Eg
"Sample_no"
2012 Mar 26
2
copy the columns based on the code
Hello,
I have two different dataset, and wanted to join the two.
For example I have a table of codes of cities, and other with with the
codes of travels, [source for the destine].
what he wanted was to have a new data.frame with all the information
city<-data.frame(city="Barcelona",cod=1)
city<-rbind(city,data.frame(city="Madrid",cod=2))
2009 Jul 28
1
Fwd: randomized block design analysis in R
---------- Forwarded message ----------
From: alis villiyam <aalisiyan at gmail.com>
Date: Mon, Jul 27, 2009 at 9:47 AM
Subject: randomized block design analysis in R
To: bolker at zoology.ufl.edu
Dear All user
Hello,
I'm a student and I have some trouble with the experimental
(columns-experiments) design of my project. I use a randomized block design
with 4 treatments including a
2007 Sep 21
3
Standardize environment between specs containing class defs
I have some specs that involve the use of eval and class definitions to
test code generation. I want to always start with a clean slate so none
of my tests fail or succeed incorrectly due to artifacts left over from
previous specs.
Example of my situation
Spec 1 defines
class Fish
class Cod < Fish
Spec 2 defines
class Animal
class Cod < Animal
In this situation the
2011 May 19
2
Separating boot results
Good Morning,
I'm having what I hope to be a simple problem. I am generating bootstrap
confidence intervals using package (boot) - which works perfectly. The issue
I am having is getting the results into a format which I can write out to a
database. To be clear I am having no problems generating the results, I just
need to convert the format of the results such that I can store the results
in
2010 Jun 02
2
Faster union of polygons?
Dear R-helpers,
thanks for yesterday's speeding-up tip. Here is my next query:
I have lots of polygons (not necessarily convex ones, and they never
have holes) given by x,y coordinates.
I want to get the polygon that is the union of these polygons. This is
my current method, but I am hoping there is a faster method (up to
thousands of polygons, each with ca. 40 xy points).
Example:
2010 Jan 20
1
Merge and join data
Hi,
I'm looking to combine two data frames. Several of the columns are in
common while the others need to be summed up. The apply functions and
the merge functions don't seem to be working. I've included a basic
example of what I'm trying to do below. Thanks!
Sean
data.frame1<-as.data.frame(matrix(c('winter','dredge','515',100,150),1,5))
2012 Dec 25
3
[LLVMdev] [cfe-dev] Do you use UML utility programs?
Hi Sean Silva,
Maybe I am the only one who is trying to use UML.
In my team, I am also the only one who draws UML diagrams.
I expected there be someone who use UML like me.
But it's maybe not as your opinion.
Maybe doxygen is enough for majority of people.
Thanks for your reply.
Sincerely
Journeyer J. Joh
2012/12/25 Sean Silva <silvas at purdue.edu>:
> On Mon, Dec 24, 2012 at
2008 Nov 14
2
GAM and Poisson distribution
Hi -I'm running a GAM with 7 explanatory variables with a Poisson error
structure. All of the variables are continuous so I'm getting error
messages in R.
cod.fall.full.gam.model<-gam(Kept.CPUE~s(HOUR)+s(LAT_dec)+s(LONG_dec)+s(meantemp_C)+s(meandepth_fa)+s(change_depth)+s(seds),
data=cod.fall.version2,family=poisson)
In dpois(y, mu, log = TRUE) ... : non-integer x = 5.325517
2012 Dec 25
0
[LLVMdev] [cfe-dev] Do you use UML utility programs?
UML diagrams can be really helpful for explaining how a piece of code
works (such as the diagrams in your klang project on github).
The main reason I don't draw them is that I haven't found convenient
tools to use which integrate well with my workflow. Doxygen produces
class diagrams, but I would really like to have something which
produces sequence diagrams (such as
2013 May 18
3
bar plot with non-zero starting level
Hi,
I want to plot grouped bars to compare 95% confidence interval estimates
from two models. Each bar represents a 95% confidence interval estimate
of a coefficient from one of the two models. Each group represents
confidence interval estimates of the same coefficient from the two models.
I think such a bar plot will nicely present whether 95% confidence
interval estimates of the same
2003 Jul 15
2
R, geochemistry, ternary diagrams
I'm in e-mail contact with a geochemist who maintains a well regarded
geochemistry web site. He's drawing diagrams either with a Turbo Pascal
program running in a DOS window or with Excel. I'm trying to persuade
him that R would be a better choice. Something he's particularly keen
on is ternary diagrams. I think he is talking about ternary phase
diagrams, and if so, it looks as
2010 Aug 20
2
SSH Sequence diagrams
Hello, Dear SSH developers. I'm currently studying Business Information
Technologies at the University of Applied Sciences in Oulu, Finland. I'm
about to start my own online computer security related magazine. I would
like to make an article about the helpful ssh protocol for security
professionals. I have made sequence diagrams on how the SSH 2.0 protocol
works, however i'm not sure
2010 Jan 03
3
R2HTML Report number format, or Better Way?
Here I am again with question I'll feel foolish for asking, when I
see the answer.
I'm trying to produce a report and here's where I get stuck:
How do I get R2HTML to produce the same number format?
Particularly remove the decimal places for Par and Sal.
Are there better methods to produce this type of report?
Thanks,
L.A.
R version 2.10.0 XP