Stroke Time Since Stroke chronicity of stroke
in case-control intervention study (2 groups). What should be selected to calculate power sample size: 1- Data of primary outcome from previous published article 2- Minimal clinically importance...
05 June 2019 3,267 1 View
06 July 2017 4,733 2 View
How Can I cite the clinical findings about an itnervention published in " Letter to Editor" ?As suggestion or as clinical finding published in case study or randomised clinical trial?
09 October 2016 5,228 1 View
I have two values. every value is consisted of mean and standard deviationI need the change and standard deviation for the change
05 June 2016 9,489 0 View
what is the relationship between sample size and risk of bias in clinical trials
09 October 2015 9,676 1 View
Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...
03 March 2021 687 1 View
during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...
01 March 2021 7,476 4 View
To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...
01 March 2021 8,683 4 View
Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...
24 February 2021 7,470 7 View
Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...
24 February 2021 9,105 2 View
My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.
24 February 2021 4,150 3 View
Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...
24 February 2021 8,625 4 View
I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...
23 February 2021 7,842 1 View
I have a dataset of fish species abundances collected from 6 different habitats over the course of 30 years. Fish were collected multiple times per year and environmental variables were recorded...
21 February 2021 3,838 1 View
I am using annual time series data to estimate a VAR model in R. However, when I run the command to find the optimal lag length, I get the following error: Fehler in VARselect(data, lag.max = 10,...
18 February 2021 9,647 3 View
