What is the best method to fix the following error in R?

I need to use varImp function on neural network model created by nnet method via caret package. When I try to use varImp the error occurs: Error in i2h[hidden, input]

03 April 2015 9,992 1 View

Why i can't predict using nnet package?

I am trying to run a nnet algorithm but when I try to use the predict function, it gives the following error: "Error in predict.nnet.missing values in 'x'" Does anyone have suggestions?

01 February 2015 2,440 3 View

How do I remove not available data in R?

I created data frame of data (observed and auxiliary data) in R and fit the model on data. Then I predict the dependent variable, but in predict data there are not available (NA). I use code...

31 December 2014 8,445 4 View

How can I save grid data (grid file) in R?

Thanks in advance for your replies.

31 December 2014 6,037 1 View

Does anybody know why two points with similar longitude (different latitude) are not matched on google earth (there is a shift on google earth)?

soil

02 March 2014 4,592 4 View

No title

Digital mapping. Soil survey.

02 March 2014 6,941 5 View

What is the best number of soil samples that are required for digital soil mapping?

Digital soil mapping

01 February 2014 5,743 2 View

What is the best number of soil profile for digital soil mapping?

.

31 December 2013 3,547 2 View

How to optimize the soil sampling procedures for digital soil mapping?

Digital soil mapping, soil science

11 December 2013 7,984 3 View

Why must disaggregation and /or aggregation processes be done on auxiliary data to produce digital soil maps?

Digital soil mapping, soil science

11 December 2013 8,838 0 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View