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Questions related to Time Series
Hi, I'm about to start a study in which I need to statistically assess if there is a monotonic trend of a variable of interest (frecuency of IVF cases) over time. After doing some research, I...
13 July 2021 1,128 4 View
Well,I was trying to extract phenology parameters by timesat-3.3. However , there are 3 types of land cover, and their numbers of seasons in 1 year are different. And I input the Globe30 data to...
13 July 2021 9,391 2 View
To compare rologit and clogit in STATA, I fit the rologit model on the full ranking data for 9 alternatives. Secondly, the most preferred 5 alternatives were coded as 1; otherwise, 0 creating a...
08 July 2021 1,430 0 View
Good day scholars, In order to properly determine the true order of integration of X, Y and Z series, I subjected each series to Augmented Dickey-Fuller (ADF), Phillips-Perron (PP) and...
07 July 2021 3,476 5 View
Which data normalization approach can remove EOV effects from time series signals in SHM?
07 July 2021 1,904 3 View
1. Each time series variable is log-transformed and stationary at I(1), not at I(0). I intend to employ the ARDL method. 2. I have run ADF and PP tests, without considering lags in the command...
07 July 2021 566 19 View
Hi I need to down precipitation time-series data in NetCDF format (.nc) for a specific country ( e.g. Brazil or Australia) for a long time period ( 1998-2019) from NASA Earthdata (Giovanni)...
01 July 2021 7,616 2 View
Assuming a normal distribution, can I use one-way ANOVA if there is no homogeneity of variances (Bartlett's test for equal variances, p < 000.1)? Are available Welch or Brown–Forsythe tests in...
01 July 2021 1,663 12 View
I have non-stationary time-series data for variables such as Energy Consumption, Trade, Oil Prices, etc and I want to study the impact of these variables on the growth in electricity generation...
29 June 2021 8,033 9 View
Hello, I have non-negative integer count data and wish to perform INAR model in R. Could anyone please suggest the appropriate Package/Scripts/Code/Reference in R. Thanks in Advance!
28 June 2021 7,788 6 View
I have monthly market share data for N stores and each store will have its own market share trend i.e. Trend A : Continuously increasing Trend B : Continuously decreasing Trend C : Increasing...
28 June 2021 6,685 5 View
I would like to download NDVI time series data over an Australian region from the year 2000 to 2013. I have tried Google Earth Engine code editor but it's not working. Is there any other tool that...
28 June 2021 1,700 8 View
Hello! I am been trying to study the effects of a policy in a time series setting. The policy was started in 2002 and I want to understand what would have happened if there was no policy. I...
26 June 2021 3,263 3 View
For my study area, I'd like to generate a HAND (Height Above the Nearest Drainage) model using ArcGIS/ArcGIS Pro/ QGIS software and would like to have some suggestions from the experts who are...
23 June 2021 9,581 7 View
Good day Scholars I am currently working on a time-series regression with endogeneity problem. I just want to know if Cochrane orcult estimator performs better than the two-stage estimator in a...
22 June 2021 2,217 3 View
In order to apply the Maki (2012) Cointegration test are all series required to be stationary ~I (1) ?
21 June 2021 2,643 3 View
When dealing with multiple variables in time series data, is it correct to use common unit root test and whether this is same as performing individual unit root test ? Thanks in advance..
14 June 2021 3,524 0 View
In my work, I use the multivariate GARH model (DCC-GARCH). I am testing the existence of autocorrelation in the variance model. Ljung-Box tests (Q) for standardized residuals and square...
11 June 2021 8,196 4 View
am studying just one country and my data are annually, is GMM appropriate for the analysis
10 June 2021 8,352 3 View
My research experiment comprised 8 treatments replicated thrice.The first treatment cell was unpolluted control while the remaining 7 treatment cells measuring 0.9m square each were polluted with...
09 June 2021 6,893 2 View
Hi, I want to perform a climate change impact/scenario analysis using the "HSPF" hydrological model for streamflow and some others outputs. For that, I need projected/future meteorological data...
08 June 2021 1,198 3 View
Dear researchers, As you know groundwater level time series often deal with missing values. I have groundwater level time series for 10 years trying to find an appropriate method to impute...
07 June 2021 4,582 8 View
I'll analyze rainfall and temperature data. I'm quite familiar with traditional tests like M-k, Modified M-k, ITA, etc.
07 June 2021 2,265 2 View
Is it possible to do prevalence study using total number of cases recorded yearly?And what are possible statistical framework can be done to compare the prevalence of two time series data?
03 June 2021 8,350 3 View