Displaying 20 results from an estimated 20000 matches similar to: "MARS"
2004 Aug 10
1
Error message in function mars() in package mda
Hi,
I am using function mars() in package mda to find knots in a whole bunch
of predictor variables. I hope to be able to replicate all or some of
the basis functions that the MARS software from Salford Systems creates.
When I ran mars() on a small dataset, I was able to get the knots.
However, when I tried running mars() on a larger dataset (145 predictor
variables), for a different
2006 Oct 18
1
MARS help?
I'm trying to use mars{mda} to model functions that look fairly
close to a sequence of straight line segments. Unfortunately, 'mars'
seems to totally miss the obvious places for the knots in the apparent
first order spline model, and I wonder if someone can suggest a better
way to do this. The following example consists of a slight downward
trend followed by a jump up after
2008 Jun 12
1
Problems with mars in R in the case of nonlinear functions
Hi,
I'm trying to use mars function in R to interpolate nonlinear
multivariate functions.
However, it seems that mars gives me a fit which uses only very few
basis function and
it underfits very badly.
For example, I have tried the following code to test mars:
require("mda")
f <- function(x,y) { x^2-y^2 };
#f <- function(x,y) { x+2*y };
# Grid
x <-
2006 Apr 19
1
R-squared for MARS models
Hi,
is there an R function which can compute the R-squared
for a mars model fitted using the mda package?
many thanks in advance
best regards
Marco Girardello
2003 Jul 09
2
CFP: CART Data Mining Conference 2004
Apologies for cross posting....
---------------------------------------------------------------------
CART Data Mining'04: First International CART(R) Conferences
Focusing on the Data Mining technology of
Leo Breiman, Jerome Friedman, Richard Olshen, Charles Stone
(CART, MARS(R), TreeNet(tm), PRIM(tm)...)
First Call For submissions
2010 Dec 26
1
Question about mars() -function
Hi!
I have some questions about MARS model's coefficient of determination.
I use the MARS method in my master's thesis and I have noticed some
problems with
the MARS model's R^2.
You can see the following example that the MARS model's R^2 is too big
when i have used mars() -function for MARS model building, and when I
have made MARS-model using a linear regression, it
2005 May 24
0
output of mars() in package mda; how do I read the pairwise interaction terms from the output?
Hi,
I have run mars() with the default degree=1, and have constructed
splines which are similar to what I would get from Salford System's
MARS. I then use these splines as potential predictors, along with
rpart( ) terminal nodes and other potential predictors, in logistic
regression in SAS. The output of mars() and the splines I created are
shown below (pardon the lengthy output):
>
2003 Aug 13
0
please advise re: data mining in Germany
Our CEO, Dr. Dan Steinberg, is planning to visit Germany in September.
He would like the opportunity to introduce statisticians (and
statistically minded
people) to data mining, data mining applications and to forefront data
mining tools. Our algorithms are probably familiar to many
statisticians (CART, MARS and MART), although it isn't necessary to be a
statistician to use our tools. We
2019 Jul 12
2
[cfe-dev] ARM float16 intrinsic test
Hi,
I do not get your result. Do I miss something?
$COMP_ROOT/clang++ --target=arm-arm-eabihf -march=armv8.2a+fp16
arm.cpp -S -o - -O3
.text
.syntax unified
.eabi_attribute 67, "2.09"
.eabi_attribute 6, 14
.eabi_attribute 7, 65
.eabi_attribute 8, 1
.eabi_attribute 9, 2
.fpu crypto-neon-fp-armv8
.eabi_attribute 12, 4
2003 Nov 24
2
How to get the parameters of nls(...) for later use
Hi all,
I need to use the parameter estimates of nls() for further analysis. I
know how to do in S+, e.g. nls(...)$parameters. In R, the
attributes(nls(...)) does not have parameters, how would one get the
parameter values out of nls()?
Thanks in advance.
Nancy
2019 Nov 21
2
Tablegen PAT limitation?
Hi Krzysztof,
Today I try it on llvm9.0.0 version.
def bos : RPPInstMMEMrr<OPC_STORE,
(outs), (ins MGPR:$rs1, SGPR32:$rbase, MGPR:$roffset, uimm2:$rshift),
!strconcat(opcodestr, ""), "$rs1,
2015 Jan 10
2
Link-dest thinks file is newly created, but it isn't
Hi:
I've been using rsync for a couple years now. Unfortunately, I've made some
changes on both ends, so it's unclear what could be the culprit. I make
extensive use of --link-dest to provide a cheap "Time Machine"-like backup
for a Windows machine.
Source: Windows 7 running Cygwin (CYGWIN_NT-6.1 sith 1.7.33-2(0.280/5/3)
2014-11-13 15:47 x86_64 Cygwin)
Destination: Synology
2009 Jul 23
0
Early-Bird Deadline, Schedule: Data Mining Conference in California - Salford Systems
Salford Data Mining Conference
August 23rd - 25th, 2009
San Diego, California
Early-Bird Registration Deadline: July 24th, 2009
http://SalfordDataMining.com/agenda.php
Post-Conference Training
August 26th - 28th, 2009
Our conference will offer prominent keynote speakers and informative real world application solutions. Conference topics include:
* What Data Mining Has to Say About the
2019 Nov 22
2
Tablegen PAT limitation?
def STOREbos { // InstructionEncoding Instruction RPPInst RPPInstMMEMrr
field bits<32> Inst = { 0, 0, 0, 1, rs1{2}, rs1{1}, rs1{0}, index{0}, 0, 0, 0, 1, 0, rbase{3}, rbase{2}, rbase{1}, rbase{0}, rbase{4}, roffset{4}, roffset{3}, roffset{2}, roffset{1}, roffset{0}, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
field bits<32> SoftFail = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2019 Nov 20
4
Tablegen PAT limitation?
Hi,
The full trace stack:
Type set is empty for each HW mode:
possible type contradiction in the pattern below (use -print-records with llvm-tblgen to see all expanded records).
vtInt: (vt:{ *:[Other] })
UNREACHABLE executed at /home/nancy/work/rpp_clang/llvm/utils/TableGen/CodeGenDAGPatterns.cpp:824!
[ 85%] Building X86GenEVEX2VEXTables.inc...
#0 0x000000000081b9b5
2019 Nov 25
2
Tablegen PAT limitation?
You are welcome.
I changed the pattern, the same old error pop up again, crash in the same place.
Type set is empty for each HW mode:
possible type contradiction in the pattern below (use -print-records with llvm-tblgen to see all expanded records).
vtInt: (vt:{ *:[Other] })
UNREACHABLE executed at /home/nancy/work/rpp_clang/llvm/utils/TableGen/CodeGenDAGPatterns.cpp:824!
2011 Aug 03
8
Serios error Nancy Drew ununtu 11.04
What I did.
Sudo apt-get install wine
insert CD for Nancy Drew Warnings at Waverly Academy.
Copy all file from CD to folder on desktop marked nancy Drew
eject, do same with #2 CD
go to Nancy Drew (on desktop) Setup.exe Properties, Allow to run as Exucable file.
then opened it with WINE. install completed and icons are on desktop when i sleectecd ''run Nancy drew from the install before it
2004 Jan 05
0
DATA MINING Conference – 30th January is the deadline for early-bird registration discount.
Apologies for cross posting....
Early-Bird Registration Discount Deadline
Just a quick reminder.
If you are interested in attending CART Data
Mining 2004 (San Francisco), the EARLY-BIRD discounted registration
deadline is January 30th, 2004. Registration materials are available
at: http://www.cartdatamining.com/RegCART04.pdf
Other deadlines:
Paper Submission: January 12th
Student Contest:
2006 Mar 10
2
what is the function in R for MARS and PRIM?
thanks a lot!
[[alternative HTML version deleted]]
2013 Mar 11
0
Hands-on Webinar Series (no charge) The Evolution of Regression from Classical Linear Regression to Modern Ensembles
Maybe you missed Part 1 of "The Evolution of Regression Modeling from Classical Linear Regression to Modern Ensembles " webinar series, but you can still join for Parts 2, 3, & 4
Register Now for Parts 2, 3, 4: https://www1.gotomeeting.com/register/500959705
Download (optional) a free evaluation of the SPM software suite v7.0 (used in the hands-on components of the webinar). As a