search for: nir

I have two ideas about it. 1- i) Entering variables in quadratic form is done with the command I (variable ^ 2) - plsr (octane ~ NIR + I (nir ^ 2), ncomp = 10, data = gasTrain, validation = "LOO" You could also use a new variable NIR_sq <- (NIR) ^ 2 ii) To insert a square variable, use syntax I (x ^ 2) - it is very important to insert I before the parentheses. iii) If you want to make the interaction between x and...

Usage data(gasoline) Format A data frame with 60 observations on the following 2 variables. octane a numeric vector. The octane number. NIR a matrix with 401 columns. The NIR spectrum and I see the gasoline data to see below NIR.1686 nm NIR.1688 nm NIR.1690 nm NIR.1692 nm NIR.1694 nm NIR.1696 nm NIR.1698 nm NIR.1700 nm 1 1.242645 1.250789 1.246626 1.250985 1.264189 1.244678 1.245913 1.221135 2 1.189116 1.223242 1.253306 1.282889 1....

Below. -- Bert Bert Gunter On Thu, Jul 13, 2017 at 3:07 AM, Luigi Biagini <luigi.biagini at gmail.com> wrote: > I have two ideas about it. > > 1- > i) Entering variables in quadratic form is done with the command I > (variable ^ 2) - > plsr (octane ~ NIR + I (nir ^ 2), ncomp = 10, data = gasTrain, validation = > "LOO" > You could also use a new variable NIR_sq <- (NIR) ^ 2 > > ii) To insert a square variable, use syntax I (x ^ 2) - it is very > important to insert I before the parentheses. True, but better I believe: se...

Hi list, I am looking at the data yarn in package, I don't understand what is dimension of this data set. I did the following: > library(pls) > data(yarn) > dim(yarn) [1] 28 3 > head(yarn) NIR.1 NIR.2 NIR.3 NIR.4 NIR.5 NIR.6 NIR.7 NIR.8 NIR.9 NIR.10 NIR.11 1 3.06630 3.08610 3.10790 3.09720 2.99790 2.82730 2.62330 2.40390 2.19310 2.00580 1.83790 2 3.06750 3.08570 3.09580 3.06920 2.98180 2.84080 2.67600 2.50590 2.35060 2.22300 2.11920 3 3.07500 3.09660 3.09160 3.02880 2...

...ter > > > > On Thu, Jul 13, 2017 at 3:07 AM, Luigi Biagini <luigi.biagini at gmail.com> wrote: >> I have two ideas about it. >> >> 1- >> i) Entering variables in quadratic form is done with the command I >> (variable ^ 2) - >> plsr (octane ~ NIR + I (nir ^ 2), ncomp = 10, data = gasTrain, validation = >> "LOO" >> You could also use a new variable NIR_sq <- (NIR) ^ 2 >> >> ii) To insert a square variable, use syntax I (x ^ 2) - it is very >> important to insert I before the parentheses. > >...

...inear model, I want to fit my data with a quadratic function with interaction terms. But I am not sure how. I will use an example to illustrate my problem: Following the example in the PLS manual: ## Read data data(gasoline) gasTrain <- gasoline[1:50,] ## Perform PLS gas1 <- plsr(octane ~ NIR, ncomp = 10, data = gasTrain, validation = "LOO") where octane ~ NIR is the model that this example is fitting with. NIR is a collective of variables, i.e. NIR spectra consists of 401 diffuse reflectance measurements from 900 to 1700 nm. Instead of fitting with predict.octane[i] = a[0]...

poly(NIR, degree = 2) will work if NIR is a matrix, not a data.frame. The degree argument apparently *must* be explicitly named if NIR is not a numeric vector. AFAICS, this is unclear or unstated in ?poly. -- Bert Bert Gunter "The trouble with having an open mind is that people keep coming along a...

?? If I haven't misunderstood, they are completely different! 1) NIR must be a matrix, or poly(NIR,...) will fail. 2) Due to the previously identified bug in poly, degree must be explicitly given as poly(NIR, degree =2,raw = TRUE). Now consider the following example: > df <-matrix(runif(60),ncol=3) > y <- runif(20) > mdl1 <-lm(y~df*I(df^2)) >...

Hello, I'm playing around with the PLS package and found a data set (NIR) whose structure I don't understand. Forgive me if this is a stupid question, as I feel like it must be since I am less experienced with aspects of modeling. My problem, the pls NIR data frame does not seem to be a typical data frame as, while it is a list, its variables are not of equal leng...

...a quadratic function with interaction terms. But I am not sure > how. I will use an example to illustrate my problem: > > Following the example in the PLS manual: > ## Read data > data(gasoline) > gasTrain <- gasoline[1:50,] > ## Perform PLS > gas1 <- plsr(octane ~ NIR, ncomp = 10, data = gasTrain, validation = "LOO") > > where octane ~ NIR is the model that this example is fitting with. > > NIR is a collective of variables, i.e. NIR spectra consists of 401 diffuse > reflectance measurements from 900 to 1700 nm. > > Instead of fi...

> On Jul 13, 2017, at 10:43 AM, Bert Gunter <bgunter.4567 at gmail.com> wrote: > > poly(NIR, degree = 2) will work if NIR is a matrix, not a data.frame. > The degree argument apparently *must* be explicitly named if NIR is > not a numeric vector. AFAICS, this is unclear or unstated in ?poly. I still get the same error with: library(pld) data(gasoline) gasTrain <- gasoline[1:50...

...las." The issue of having to explicitly name arguments that follow the three dots has come up over the years, but I cannot recall where that is documented in the manuals. Regards, Marc > On Jul 13, 2017, at 12:43 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote: > > poly(NIR, degree = 2) will work if NIR is a matrix, not a data.frame. > The degree argument apparently *must* be explicitly named if NIR is > not a numeric vector. AFAICS, this is unclear or unstated in ?poly. > > > -- Bert > > Bert Gunter > > "The trouble with having an...

Hi all I have samba 3.0.21b with openldap 2.3.19 on Redhat Enterprise Linux 4 ES with Kernel Version 2.6.9-5. i have allready posted this error in bugzilla, bug 3545 i have created 70 groups, (test1-test70), and created a user "nir" and made "nir" member to these 70 groups. >From Windows system it was the same error ""Remote procedure call was cancelled"" when i am connecting through smbclient, smbclient //testbdc/nir -U nir%nir the following error comes ""session setup failed...

...itly name arguments that follow the three dots has come up over the years, but I cannot recall where that is documented in the manuals. > > Regards, > > Marc > > > >> On Jul 13, 2017, at 12:43 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote: >> >> poly(NIR, degree = 2) will work if NIR is a matrix, not a data.frame. >> The degree argument apparently *must* be explicitly named if NIR is >> not a numeric vector. AFAICS, this is unclear or unstated in ?poly. >> >> >> -- Bert >> >> Bert Gunter >> >>...

Hi there! I appear to be having problems with trusted domains using 3.0a21. Using Samba as a member server, as user "nirs" on domain "Exanet-il" I am unable to log on to a member server ("snow") who is a member of the "Exanet-qa" domain. The "exanet-qa" is supposed to trust "exanet-il", and it all worked with 2.2 . This is the relevant log snippet I can find: [2...

On Fri, Nov 13, 2015 at 9:25 AM, Emil Velikov <emil.l.velikov at gmail.com> wrote: > Hello Hans, > > Not to muddy the waters or anything, have you thought about the NIR > integration that Rob was thinking about ? > I'm pretty sure he'll be happy to have extra people helping him out. How would that in any way plug into llvm or nouveau? There's no OpenCL C -> NIR, and there's no NIR -> nv50 IR... -ilia

...up: Mac OS 10.3.9 R: Aqua GUI 1.01, v 2.0.1 I want to get R^2 and Q^2 (LOO and Leave-10-Out) values for each component for my model. I was running into a few problems so I played with the example a little and the results do not match up with the comments in the help pages. $ library(pls) $ data(NIR) $ testing.plsNOCV <- plsr(y ~ X, 6, data = NIR, method="kernelpls", validation="none") $ NIR.plsCV <- plsr(y ~ X, 6, data = NIR, CV=TRUE, method="kernelpls") $ testing.plsCV <- crossval(testing.plsNOCV) $ R2(NIR.plsCV) (Intercept) 1 comps 2 comps...

...has come up over the years, but I cannot recall where that is documented in the manuals. >> >> Regards, >> >> Marc >> >> >> >>> On Jul 13, 2017, at 12:43 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote: >>> >>> poly(NIR, degree = 2) will work if NIR is a matrix, not a data.frame. >>> The degree argument apparently *must* be explicitly named if NIR is >>> not a numeric vector. AFAICS, this is unclear or unstated in ?poly. >>> >>> >>> -- Bert >>> >>>...

...inear model, I want to fit my data with a quadratic function with interaction terms. But I am not sure how. I will use an example to illustrate my problem: Following the example in the PLS manual: ## Read data data(gasoline) gasTrain <- gasoline[1:50,] ## Perform PLS gas1 <- plsr(octane ~ NIR, ncomp = 10, data = gasTrain, validation = "LOO") where octane ~ NIR is the model that this example is fitting with. NIR is a collective of variables, i.e. NIR spectra consists of 401 diffuse reflectance measurements from 900 to 1700 nm. Instead of fitting with octane[i] = a[0] * NIR[0...

...rror message: > plotmo( mars ) Error: bad index (missing column in x?) I don't no how to workround this... :-( I thanks in advanced by some help! Thanks. Cleber ############### > > ### example code: > library( earth ) > data( gasoline, package='pls' ) > > nir <- gasoline$NIR > dim( nir ) [1] 60 401 > class( nir ) [1] "AsIs" > > oct <- gasoline$octane > > mars <- earth( oct ~ nir, nk=300, nfold=10, degree=3, trace=0 ) > > plotmo( mars ) Error: bad index (missing column in x?) > plotmo( mars, all1=...