Hasan Bin Sohail

15 Questions 8 Answers 0 Followers

Questions related from Hasan Bin Sohail

How to decide which spline to use?

For modeling non-linear data, splines are quite a handy tool. However, it might get confusing to decide the most suitable spline type to use. Based on your data, what is the rule of thumb to...

13 December 2022 3,021 2 View

What makes an association non-significant?

Suppose, we want to check association between A and Z using regression model. We add different covariates in model 1 let's say b, c, d, e. The regression shows significant association for A and Z...

21 July 2022 9,633 8 View

How to convert date into date format in R?

I have a dataset with date variable as character type in R. Date variable is showing some values like this for example 1836518400 1839196800. How should i convert it to normal date format? like...

24 January 2022 1,550 3 View

Would you consider these values as borderline significant?

Risk Ratio: 0.999 (95% CI: 0.993, 1.005) 0.996(95% CI: 0.989, 1.004) 0.985(95% CI: 0.886, 1.095) 0.953(95% CI: 0.828, 1.097)...

11 November 2021 4,604 6 View

How to interpret the following contour plot?

Hi. I am new to Countour plots. I need help with the understanding of the following contour plot. If someone can explain, please.

11 November 2020 3,804 1 View

How to interpret the results from Distributed linear model (DLNM package in R)?

I am using a distributed linear model (DLNM package in R) to study the effects of temperature lags on cardiovascular disease admissions. So i did as following: #Creating the cross basis: cb.temp...

31 August 2020 2,000 2 View

Which modelling technique to predict corona virus trends in future?

Hi, I am working on time-series data for the last 2 years. However, I have never used forecasting models. I want to enhance my statistical skills. As corona is all around us, I was thinking to...

30 March 2020 7,555 6 View

Can we assume linearity of association from this graph?

Linearity is pretty simple and obvious to guess. However, in some cases, the scenario gets totally different. IF you see the following attached graph, would you consider it linear association or...

16 January 2020 7,988 3 View

What are the skills that a PhD researcher should learn to secure a job after PhD in research field?

Hi, As the research field is really competitive, so what are the skills recommended for a Ph.D. student to learn while doing a Ph.D.? For example, I am doing a Ph.D. in environmental health...

14 January 2020 6,692 26 View

Does statistical significance matters in interpretation of results for time-series analysis?

In time-series ecological study, do we take positive results (but statistically non-significant) serious enough to be generalized in the real population?

07 January 2020 4,332 9 View

Can someone share any publication that reported non significant RR results?

I have got some negative nonsignificant RR values for my results. I am having confusion on how to explain them. Can someone share a publication that has reported the nonsignificant RR results?

13 November 2019 3,962 1 View

Does seasonality causes auto-correlation in time series data of daily mean temperature?

Hi, I am analyzing a time series data of daily mean temperature. I am trying to understand the concept of autocorrelation here. I have to run a regression model to find an association of daily...

05 November 2019 6,997 3 View

Why a significant value for overall group becomes insignificant for subgroups?

Hi, I am doing an analysis. My analysis showed that for example is "kidney admissions- all ages group" is significantly associated with daily temperature, however, in agewise groups, it does not...

01 November 2019 7,642 3 View

Is Postdoc a better option after PhD?

As Ph.D. ends, many researchers get confused in making a decision for their future careers. They are usually stuck in making the choice between two things: - Doing a Post-Doc OR - Find a...

01 January 1970 9,972 3 View

What kind of jobs a PhD in environmental epidemiology can do after Ph.D.?

What kind of jobs a PhD in environmental epidemiology can do after Ph.D.? Data analysis or research associate etc etc? Please enlist some or share your experience?

01 January 1970 3,686 2 View