How do we do a linear regression on estimated trend in time series data?
What is meant by trend prediction = time +time*time+error?
You can have a look at the following link:
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.dummies.com/education/math/business-statistics/how-to-estimate-a-trend-in-a-time-series-regression-model/&ved=2ahUKEwimg8C7p-XlAhWFyKYKHSR2DTgQFjAQegQIAxAB&usg=AOvVaw2GxlEZEzR1v3uEGq0C8ugV&cshid=1573583639303
I would think that it describes a quadratic relationship of the prediction on time.
Also interesting is the question of the correlation of two time series.
I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...
03 March 2021 3,661 2 View
We have synthesized various metal complexes with different environment around the metals. Now to see the application of synthesized complexes we need this study also. we are also interested in...
01 March 2021 1,899 2 View
Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?
01 March 2021 9,447 3 View
Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...
01 March 2021 6,187 2 View
01 March 2021 7,254 3 View
Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...
28 February 2021 3,442 2 View
Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?
28 February 2021 3,653 4 View
Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...
25 February 2021 8,053 5 View
For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...
24 February 2021 1,265 6 View
24 February 2021 4,833 3 View
I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...
03 March 2021 2,297 3 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
I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...
03 March 2021 9,692 2 View
I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.
02 March 2021 4,359 3 View
Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...
02 March 2021 6,865 1 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, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...
01 March 2021 6,200 3 View
Please, if Gaussian Parameter optimization is possible in this code structure
28 February 2021 278 3 View
I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...
27 February 2021 1,233 1 View
Hello. I have a question whether if my coefficients (statistically significant) would be valid when VIFs are really high. In my model, there are independent variables(IV), moderating variables...
26 February 2021 956 13 View