Displaying 20 results from an estimated 1000 matches similar to: "Plot in cartesian plane"
2010 Jul 29
1
Pattern recognition
Dear all,
I'm trying to use some technic to do a pattern recognition over a large
dataset. I really don't have any idea on how to do that using R.
Here is a sample of the data:
id,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
1480010,208,69,180,465,465,241,241,69,584,26,75,578,507,75,284
1480183,208,69,352,476,531,495,163,241,69,584,69,584,69,484,69
2010 Aug 03
5
The condition has length > 1 and only the first element will be used
Hi All,
I'm trying to run the following script in R, but I'm getting a warning saying:
Warning message:
In if (z < 0) { :
the condition has length > 1 and only the first element will be used
As you can see, I'm sending a vector x to the function f without any
problem. The function f calculates the y value for each x.
But the function f needs to convert the x to positive
2010 Jul 26
3
Cluster analysis
Hi all,
I have no idea if this question is to easy to be answered, but I?m starting
with R. So, here we go.
I have a large dataset with a lot of steps a judicial case. A sample is
attached.
I?d like to do a cluster analysis to try to understand with one is the most
usual path followed by this legal cases.
After that, I?d like to plot a cluster tree.
In the attached sample, the column:
-
2010 Jun 30
6
Multiline and grouping in R
Hi All,
this is my first mail here.
I'm trying to plot a multiline chart grouping values with no success. I have
read a lot in the official Wiki and also searched via Google, but I did not
find anything.
I'm importing some data from a cvs file. Here is a sample:
YEAR,AREA,CASES
1988,CONTRACTS,286
1988,INTERNATIONAL,189
1988,FAMILY,385
1988,TAXATION,177
1989,CONTRACTS,233
2010 Jul 01
2
Plot map Brazil and documentation
Dear all,
I'm trying to plot some data over a geographic map.
I'm reading the documentation (?map)... The problem is here:
*map(database = "world", regions = ".", exact = FALSE, boundary = TRUE,*
* interior = TRUE, projection = "", parameters = NULL, orientation = NULL,*
* fill = FALSE, col = 1, plot = TRUE, add = FALSE, namesonly = FALSE,*
* xlim =
2009 Nov 21
1
How to make a cartesian pairlist from a vector?
Hi,
I'm looking for a function that will take a list of columns or data.frame
and corvert it to cartesian pairlist. For example for this data.frame (see
below), I'd like to get a list of all possible pairs:
> sound
cs rs ns
7 5 2
4 5 4
6 3 1
8 4 1
6 4 2
6 7 1
2 2 5
9 2 5
how can I get this?
> mylist
((cs,rs), (cs,ns), (rs,ns))
2012 Dec 31
2
code to convert 3D geographical coordinates to Cartesian?
Is there packaged code to convert geographical coordinates (e.g.,
longitude, latitude, elevation) to Cartesian coordinates in 3-space?
I can see how to do this using
1. a spherical-to-Cartesian conversion like pracma::sph2cart(tpr)
http://cran.r-project.org/web/packages/pracma/
2. a geographical-to-spherical conversion. This seems to involve (in
roughly increasing order of difficulty or
2011 Dec 13
0
[LLVMdev] AMD IL Code Generator Backend for OpenCL
Hi Micah, all,
On Dec 13, 2011, at 8:49 AM, Villmow, Micah wrote:
If you look at the test cases, you can infer what needs to be done. Basically since this is targeted
for OpenCL, we annotate OpenCL kernels slightly different than normal functions and that is
what causes the code to be generated. That being said, on my list of things to do is fix this so that
any function will be generated
2004 Sep 10
1
Efficient Cartesian product of data.frames
Hello List,
I am looking for efficient code to produce the Cartesian product of two
or more data.frames. I'd like to be able to do this without resorting to
looping. I have searched the FAQ, web, etc without luck. That being
said, the help page for merge says that the function can produce what
I'm looking for if the by vectors are of zero length. Would someone be
so kind as to
2008 Dec 05
1
Cartesian Product Of Character Vectors
Hi all
(I'm sure this question has been asked before, but I cant find it).
If I have two character vectors:
> x <- c("aaa","bbb","ccc")
> y <- c("1","2","3")
How can I get the cartesian product of the string values?
> expand.grid(x,y)
Gives me a data frame with separate columns...however, I cant seem to get *apply
2012 May 03
1
Creating a point pattern with cartesian co-ordinates
I have the following data from an image analysis program, in which the x and
y co-ordinates are locations of the centroids of shapes on a 2 dimensional
plot. The Y co-ordinates were positive, but I changed them to negative as
the resulting scatterplot was upside down (the image analysis program reads
from the top of the image to the bottom, so it seems) I now need these as
point pattern data, as I
2009 Nov 21
0
How to make a cartesian pairlist?
Hi,
I'd like to make a pairwise comparison of a data.frame and I'm looking for a
function that will take a list of columns or data.frame and corvert it to
cartesian pairlist. For example for this data.frame (see below), I'd like to
get a list of all possible pairs:
> sound
cs rs ns
7 5 2
4 5 4
6 3 1
8 4 1
6 4 2
6 7 1
2 2 5
9 2 5
how can I get
2010 Jul 07
0
HELP - four.nines.cartesian.probability.grid
My routine (below) works OK but misbehaves if the on-screen plot is made
wider using the mouse.
The problem is caused by using
par("usr")[1] - 0.07 * (par("usr")[2] - par("usr")[1])
to locate two items on the y-axis. The rest of the labeling is controlled
by the "line=0" parameter setting. Of course resizing changes the absolute
plot width, and
1999 May 06
1
x,y vs row,column
I think my problems are coused by a fundamental R incompatibility in how
matrices are stored and the usual way of specifying Cartesian coordinates.
When I do
data<-read.table("~/r/rt/data/unif/6cbcif2d.out",header=TRUE)
x<-unique(data$lag1)
y<-unique(data$lag2)
z<-matrix(data$cif2d,length(y),length(x))
This z matrix is printed apparently correctly from a Cartesian point of
2017 Jun 25
2
Writing my 3D plot function
Hi all,I had a question last week on asking for a function that will help me draw three different circles on x,y,z axis based on polar coordinates (Each X,Y,Z circle are coming from three independent measurements of 1-360 polar coordinates). It turned out that there ?is no such function in R and thus I am trying to write my own piece of code that hopefully I will be able to share. I have spent
2011 Apr 08
1
asking about contour plot with R
I'm working in Rosario, Argentina, trying to plot some contours.
I found the function "draw.contour" created by James Forester at
R-bloggers. If you take a look at that function you'll see it's very
useful!
But I have a problem with it and James is trying to help me (but also
asked me to seek for more help) I hope you can help me (don't worry if you
can't):
Using
2011 Dec 13
2
[LLVMdev] AMD IL Code Generator Backend for OpenCL
We are working on getting the documentation cleaned up to the point where it can be released.
If you look at the test cases, you can infer what needs to be done. Basically since this is targeted
for OpenCL, we annotate OpenCL kernels slightly different than normal functions and that is
what causes the code to be generated. That being said, on my list of things to do is fix this so that
any
2017 Jun 25
0
Writing my 3D plot function
Please look at what I see in your code below (run-on code mush) to understand part of why it is important for you to send your email as plain text as the Posting Guide indicates. You might find [1] helpful.
[1] https://wiki.openstack.org/wiki/MailingListEtiquette
--
Sent from my phone. Please excuse my brevity.
On June 25, 2017 2:42:26 PM EDT, Alaios via R-help <r-help at r-project.org>
2008 Apr 12
3
Matrix Indexing
Hi
Does anyone know how I might pick out diagonal elements of a matrix using a
vector?
If I create a matrix a:
a <- matrix(c(1:16), 4, byrow=TRUE)
and I want to pick out the elements (1,1),(2,2),(3,3), or another arbitrary
diagonal (upper or lower), is there any way I can use a vector to do this?
So if I want a diagonal of size 3, I could create a vector like x <- c(0:2)
and then pick
2012 Oct 05
2
Test for Random Points on a Sphere
Dear All,
I implemented an algorithm for (uniform) random rotations.
In order to test it, I can apply it to a unit vector (0,0,1) in Cartesian
coordinates.
The result is supposed to be a set of random, uniformly distributed,
points on a sphere (not the point of the algorithm, but a way to test it).
This is what the points look like when I plot them, but other then
eyeballing them, can anyone