Displaying 12 results from an estimated 12 matches for "jasiewicz".
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jaskiewicz
2008 Feb 07
3
Empty data frame
Hi
Sorry for banal question
How to create empty data frame with for example 30 variables without
typying: data.frame(x=1,y=1....)
Jarek
2008 Jul 23
1
Sample on dataframe
Hi
I'm looking for solution or function which I can use to sample data
frame, to obtain new (smaller) data frame similar to sample() function
Jarek Jasiewicz
2009 Sep 29
3
Equivalent for Matematica function Which...
Dear All!
I'm looking for equivalent of Matematica function "Which" which works as
follows:
z = Which[x<10,0.3, 10<=x<20,0.5, 20<=x<100,1]
where x is a vector
I can replace it with custom function with set of ifelse but I'm looking
for simpler and faster (much faster) solution
best wishes
Jarek
2008 Jan 23
3
formula for nls
Hi!
How to write in model's formula of type:
nls(y~k/(x^n), data=data, start=list(k=1,n=1))
i.e the problem is on x^n, I(x^n) generate error
thanks
Jarek
2009 Apr 27
3
Formatting numbers
...dotplot: labeling coordinates for each point (Qifei Zhu)
> 20. Re: Help to select the raw in a data.frame with the max value
> (Jorge Ivan Velez)
> 21. Re: Nomogram with stratified cph in Design package
> (Frank E Harrell Jr)
> 22. Problem installing packages (Jarek Jasiewicz)
> 23. Re: 3 questions regarding matrix copy/shuffle/compares
> (David Winsemius)
> 24. Re: issue building my own package... moving from Apple OS to
> Windows (Uwe Ligges)
> 25. Re: Scatterplot of two groups side-by-side? (Stefan Grosse)
> 26. Re: 3 questions r...
2008 Feb 04
1
how to get points from SpatialPolygonsDataFrame
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Url: https://stat.ethz.ch/pipermail/r-help/attachments/20080203/5ea1e3ad/attachment.pl
2008 Jan 12
2
glm expand model to more values
Hi
I have the problem with fitting curve to data with lm and glm. When I
use polynominal dependiency, fitted values from model are OK, but I
cannot recive proper values when I use coefficents to caltulate this.
Let me present simple example:
I have simple data.frame: (dd)
a: 1 2 3 4 5 6
b: 3 5 6 7 9 10
I try to fit it to model:
model=glm(b~poly(a,3),data=dd)
I have following data
2008 Oct 09
1
number format in plots
Hi
It is probably simple but how to force in plot command number format:
20000, 30000, 40000 etc. instead of 2e+04, 3e+04 etc.
example of command:
plot(x=data$along, y=data$rzedna,type="l", xlim=c(0,max(data$along)),
ylim=c(200,1200), main="", xlab="length", ylab="height", cex.main=2,
cex.lab=1.5, cex.axis=1.2, lwd=2)
thanks
Jarek
2009 Apr 26
1
Problem installing packages
since 2.9.0 version I have a problem with installing packages:
install.packages("sp")
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
Warning: unable to access index for repository
http://piotrkosoft.net/pub/mirrors/CRAN/src/contrib
Warning messages:
1: In open.connection(con, "r") : unable to resolve ''
2: In
2008 Jan 02
1
problems with JAVA in JGR library on ubuntu 7.04
Hi All
I installed JGR library both on ubuntu 7.10 and 7.04
on 7.10 all went fine,
but on 7.04 I recived massage:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/rosuda/JRI/RMainLoopCallbacks
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at
2009 Jun 01
1
installing sn package
...ary.ca)
67. Re: How to exclude a column by name? (Wacek Kusnierczyk)
68. Labeling barplot bars by multiple factors (Thomas Levine)
69. Re: vegan metaMDS question (Gavin Simpson)
70. Re: Sort matrix by column 1 ascending then by column 2
decending (Kevin W)
71. Re: R in Ubunto (Jarek Jasiewicz)
72. Re: Sort matrix by column 1 ascending then by column 2
decending (Duncan Murdoch)
73. Re: Labeling barplot bars by multiple factors (Mike Lawrence)
74. alternative to built-in data editor (Jose Quesada)
75. no internal function "int.unzip" in R 2.9.0 for Windows
(...
2009 Oct 01
1
set package: more information about syntax
Dear All!
I have a few question about proper syntax for fuzzy rules in sets
package (there is only little help about it):
1) how to use negation (NOT) operator there is only OR (||) in example
it is NOT, !!, !. I also assume that AND is &&
2) where it can be set. For example:
area %is NOT% large
area %is% NOT large
area %is% !large
etc...
3) how brackets works (as in typical logical