Displaying 20 results from an estimated 23 matches for "palaseanu".
2003 Aug 28
4
R-help: beginner question
...(read.delim()), or in any other way. So in the end I was not
able to use boxplot at all.
I will appreciate any help ?for dummies? you can give me. Also,
if you know any other way to identify outliers, or to use Cook
dimension to identify them, I will really appreciate.
Thanks,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building
Oxford Road, Manchester
M13 9PL, UK.
email: monica.palaseanu-lovejoy at stud.man.ac.uk
2003 Sep 21
3
Z aware interpolation
...ight) interpolation (i mean the one which
takes into consideration only x and y coordinates) so i can try to
modify it to take into consideration z values as well. I am not sure
it will work, or i can do it - but it worth a try - of course if this is not
already done.
Thanks,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building
Oxford Road, Manchester
M13 9PL, UK.
email: monica.palaseanu-lovejoy at stud.man.ac.uk
2003 Aug 28
1
R-help: beginner question - Thank you! OUTLIERS
...can suggest any good package to use for identifying
outliers it will be great ;-))
Hopefully from now one, since i understood how i am using the
examples, what 'data()' means and how i am using my own data, i
will put less trivial questions.
thank you so much indeed,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building
Oxford Road, Manchester
M13 9PL, UK.
email: monica.palaseanu-lovejoy at stud.man.ac.uk
2004 Aug 09
2
Memory failure!!!!
...so i cannot use the other commands
suggested in Help.
Also, if i am using memory.size(max=TRUE) i get a value
corresponding to about 1024K, and if i am using
memory.limit(size=NA) i get a value of about 4000K.
How can i force R to use more memory?
thank you for any suggestion,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Bld. 3.21
Oxford Road
Manchester M13 9PL
England, UK
Tel: +44 (0) 275 8689
Email: monica.palaseanu-lovejoy at stud.man.ac.uk
2003 Sep 03
1
plot only partial plots
...on the same line, how can I sort a tab-delimited table after
the values from one column? I know how to assign one column
to a vector and sort that vector, but what if I want to sort the
whole table, like in Excel for example?
Thank you in advance for all your time and answers,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building
Oxford Road, Manchester
M13 9PL, UK.
email: monica.palaseanu-lovejoy at stud.man.ac.uk
2004 Jun 23
8
Automatic routine - help
Hi,
I would like to write a little automatic routine in R, but i am a too
much of a beginner for that. I will appreciate any help regarding this
particular problem.
Let?s suppose I have a data.frame with j columns (from 1 to n) and i
rows (from 1 to p). I would like to write a procedure which reads
every column j (j from 1 to n) and compare each value with the
interval [0,1]. If z(i,j) is
2004 Mar 24
5
colors, lines, characters .... documentation
Hi,
Very so often when i am plotting something, doing a histogram, or
whatever i am struggling to find out which are the numbers for
different colors, palette names, types of lines, symbols, etc. Is
there any documentation on line with all these numbers / names
and the associated symbol / color???
For example if i am using the command image it uses a palette
from red to yellow, with red the
2003 Sep 21
1
aov and data behind plots
...p with
4 plots. How do i "see" the data behind those plots? I know about
summary - but this gives me only some statistical info. Also, if i
want to identify which of my set of values gives a certain segment
of the plot - how do i identify these values?
Thanks a lot,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building
Oxford Road, Manchester
M13 9PL, UK.
email: monica.palaseanu-lovejoy at stud.man.ac.uk
2003 Nov 17
4
cumulative distribution functions
hi y'all,
I am wondering if there is any special command, function,
package, etc to help me doing a cumulative distribution function,
with y-scale - probability scale.
I tried the help in R and i got the following answers:
cumsum(base) Cumulative Sums, Products, and Extremes
ecdf(stepfun) Empirical Cumulative Distribution Function
cpgram(ts) Plot
2003 Aug 29
0
vardiag package help
...ix has a column for x value, for y value and for pah16
concentrations.
I always get the following error:
Error in matrix(i1[row(i1) < col(i1)], n1, n1) :
cannot allocate vector of length 1223600400
What does this means and what I am doing wrong?
Thank you in advance,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Building
Oxford Road, Manchester
M13 9PL, UK.
email: monica.palaseanu-lovejoy at stud.man.ac.uk
2004 Mar 05
1
selecting certain rows from a data.frame
Hi,
First of all - thank you for the answers regarding shared library. If i
am attempting to translate the library from Linux to Windows - i
think i will need some heavy baby-sitting ;-))) It is way out of my
league - for now.
Meanwhile i have this new question: suppose i have a data.frame
with x and y columns and 10 rows, 1 to 10. I also have a variable m
(or an array if you like) with 5
2004 Jul 14
0
Ord-Getis O statistics
...knows if the Ord-Getis O statistics of
local spatial autocorrelation in the presence of the global spatial
association is implemented in any of the R packages - and of
course in which package ;-)). I am not interested in Getis-Ord G
statistics, for now.
Thank you in advance,
Monica
Monica Palaseanu-Lovejoy
University of Manchester
School of Geography
Mansfield Cooper Bld. 3.21
Oxford Road
Manchester M13 9PL
England, UK
Tel: +44 (0) 275 8689
Email: monica.palaseanu-lovejoy at stud.man.ac.uk
2007 Feb 05
1
strange error in "robust" package
...d.dat)
woodmod.fm <- fit.models(list(Robust = "covRob", Classical = "cov"), data =
woodmod.dat)
Error in donostah(data, control) : object ".Random.seed" not found
Error in model.list[[i]] : subscript out of bounds
Does anybody know what is wrong?
Thanks,
Monica Palaseanu-Lovejoy
USGS / ETI Pro
St. Petersburg, FL
_________________________________________________________________
Spaces
2004 Jun 23
4
Automatic routine - NEW
Hi Again,
First of all thank you for all the responses to my previous query.
Your answers were very helpful and I did the job ;-). Now I hope you
can answer as quick the following (sorry I am invading you with
trivial questions):
Let?s use again the following data.frame example:
DF <- data.frame(x=rnorm(5), y=rnorm(5))
I want to obtain a new data.frame (or matrix) that contains only n
2007 Apr 10
2
Kmeans cluster analysis
Hello,
I have a data-set containing 22 variables, after appropriate transformations etc I ran a kmeans cluster analysis for 4 clusters , I ran it 20 times to find a result with the lowest within sum of squares.
My question is how best do I go about finding out what the characteristics are of each cluster?
Is one cluster dominated by a particular set of variables or by a particular
2004 Mar 09
1
Error message - what does it mean???
Hi,
I am trying to calculate mahalanobis distances for a matrix x with
n*p variables. I am getting the following error:
md2 <- mahalanobis(x, center, cov)
Error in solve.default(cov, tol = tol.inv) :
system is computationally singular: reciprocal condition
number = 2.11165e-009
What does it means?
Thank you so much for any help,
Monica
2004 Apr 21
1
Does R runs on IRIX 6.5 platforms?
Hi,
I am trying to do a bayesian modelling and my Windows PC
seems not to have enough memory to do it. So now i would like to
run GeoR on an IRIX 6.5 platform (UNIX related as i understood).
Do you know if R is compatible with this type of platform? I am not
allowed to try it until i have an answer to that.
Thank you so much,
Monica
2004 May 14
1
log Y scales for parplot
Hi,
I am doing a barplot, and the fist bar is very big (high values) and
the rest of the bars are quite small (small values). So - is there any
way to make the Y scale logarithmic so that i have a wider
distance from 0 to 50 for example than for 50 to 100, and so on?
Thanks in advance for any help,
Monica
2004 May 17
1
basics: how do you sort a table?
Hi,
This may be a very basic question but it seems i cannot figure it
out does not matter what.
how do you sort a table (ascending or descending) after the values
in one particular column? I want to do something like the sort
function in Xcel.
Also, is there any other plot function that accepts log for y axes
like the parplot2() from gregmisc? Thanks for the tip Marc about
barplot2. very
2004 Jun 03
1
ecdf plots, lines, and y values
Hi,
I have a question for the group, perhaps someone can help me
figure this out. I've already looked in the help files and they were
no help to me.
I have a vector of values and I am plotting an ecdf graph.
1. How can i draw a continuous line through the ecdf points? (lines
and type for the plot with an ecdf object does not work)
2. Supposing I have this line drawn. I can add a