i've been searching for the trial version of s-plus in internet but i found none. Anyone please tell me or provide me a link where I can download it?
Just for curiosities sake, why would anyone want to use S-Plus instead of R? R is free and there are numerous books, online resources, chat groups, etc. for support.
I need to conduct a study in which the treatment group has two levels, say A and B. The sizes of these groups are really different, size of group A is 1 million while the size of B is 20,000. I...
04 May 2019 7,741 22 View
I know that the series is stationary and has long memory property if the fractional parameter d is between 0 and 0.5. But is it for stationarity or for testing that the series has a long memory?...
04 May 2016 8,148 5 View
I've read articles, journals and books regarding long memory property of a time series data. And most of it found that, it is common in financial and economic perspective. I know , for example, in...
03 April 2016 4,824 7 View
Hi, i just want to ask what is wrong with my codes that the forecast plot looks like in the attach file. The codes are these, > x ...
10 November 2015 9,877 0 View
Hi. I look at the journal of Hosking in proving the properties of ARFIMA (0,d,0). It says there, when d < 1/2, the power series expansion of (1-z)^(-d) converges for absolute value of z less...
10 November 2015 1,386 3 View
Hi! i'm still confused of what problem in statistics should i consider to be included in my study. I want to find a topic for my thesis but i find it hard looking for it. can anyone suggests?
06 July 2015 6,302 5 View
Can anyone give me a topic in statistics that might involve using randomization? just like the one sample test, anova, regression.. But this particular topics were already absorb in my class. So i...
02 March 2015 9,138 8 View
I used the package "FinTS" in R to test if the residuals have an arch effect by using the function ArchTest(). Now the test is significant, so i want to see if arch(1) is ok. How is this done? Is...
02 March 2015 9,304 1 View
I am trying to do a randomization test in Spearman's correlation in R. And i find it difficult to do the randomization part.
02 March 2015 192 3 View
I have read that it can be used in forecasting. so what is the difference of this method and the usual method in forecasting? And also, I don't understand the concept that this method assigns...
09 October 2014 2,181 5 View
I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?
11 August 2024 3,115 1 View
I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...
10 August 2024 4,005 2 View
Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...
09 August 2024 7,892 0 View
I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...
09 August 2024 5,048 2 View
I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...
08 August 2024 719 0 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View
Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...
06 August 2024 9,986 2 View
Greetings When one is to perform Simulation or modelling of Pyrolysis of Biomass Waste materials using Aspen Plus software, and one has both the macromolecules breakdown (Cellulose, Lignin and...
06 August 2024 5,023 1 View
I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...
05 August 2024 454 3 View
Are there any statistical methods to justify your sampling technique using SPSS or AMOS?
05 August 2024 9,153 4 View