Any suggestions on forecasting using exponential smoothing: accuracy and tracking signal?

06 July 2015 458 3 View

Can we forecast a white noise process?

02 March 2015 4,178 9 View

Forecasting stationary time series?

I am trying to forecast only one step ahead of a stationary time series. I tried auto. Arima available in 'forecast' R package. The results are not good enough. Do you have any idea?

01 February 2015 3,162 10 View

Any reference (paper, journal) for Aroon indicator?

hi all i am looking for any reference (paper/conference/journal) that report use of Aroon indicator introduced by Chande (1995); any help;

10 November 2014 6,198 2 View

Do you know any published study that report that it would be better (for forecasting accuracy) to have ONLY discrete data in Bayesian Network?

hi all, do you know any published study that report that it would be better (for forecasting accuracy) to have ONLY discrete data in Bayesian Network? or, alternatively, continuous data may lead...

08 September 2014 6,421 5 View

Can anyone help me use synthetic data for a mutual information test?

I am working on new research and I need to test my theory using synthetic data composed of approx. 8 variables (1 of them is supposed to be the dependent variable) but ONLY 2 of them have...

03 April 2014 2,111 0 View

What is the best "nonlinear information criteria" for a financial time series?

I am working on an optimization algorithm that needs to calculate at each step information criteria between two financial time series. I have tried AICc, BIC, FIC, but I prefer to be able to...

01 February 2014 5,671 1 View

Does anyone have experience with WAIC information criteria using R?

I am trying to write a program in R and I need to calculate WAIC (Watanabe 2013); R packages: MuMIn & AICcmodavg only provide support for (AIC, QAIC, AICc,..) but not WAIC. Any idea?

31 December 2013 7,227 2 View

Computational problem with high dimensional Genetic Programming?

I am currently working on a research where a large number of variables are included in GP function. That is y=f[x(1), x(2), ...,x(i)]; where i>50 and each x(i) is a non-stationary time-series. As...

10 November 2013 1,645 15 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 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

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

How can I set up a good fit SEM model in AMOS?

I am trying to make an SEM model in AMOS for my dissertation but having some trouble with getting a good fit. I am looking for relationships between self-efficacy reported on a Likert scale and...

26 February 2021 8,642 4 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View