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Chawarat Rotejanaprasert replied to the topic R code for week 4 in the forum Course Forums 6 months, 4 weeks ago
Hello TMHG 517 class…
It’s truly great to see the collaboration and support you’re providing to one another during this course. I hope that these connections will continue to thrive beyond the classroom.
Regarding the recent change in the INLA system, there is a recent change internally within INLA. Specifically, the marginals of the linear…[Read more]
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Chawarat Rotejanaprasert replied to the topic R code for week 4 in the forum Course Forums 7 months ago
Hi class,
I would like to note that calculating fitted values in INLA can be approached differently based on the specific context. Departing from the class example, you might find it beneficial to explore the utilization of the ‘summary.fixed’ command, which offers an alternative method to determine the fitted values of relative risks. In regard…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 2.1 in the forum Assignment 7 months, 1 week ago
Hello everyone,
I’m glad to read your comments. Typically, spatial analysis in studies tends to concentrate on communicable diseases which you can see from TMHG549, GIS course. However, I think it would be also valuable to provide an alternative outlook from a view of non-communicable diseases. Despite the varying mode of transmission, the…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 1.1 in the forum Assignment 8 months ago
Thank you, Chanapong, for your comment. I agree with you that spatial epidemiology’s interdisciplinary approach, which integrates advanced technologies and data from various scientific fields, allows us to gain valuable insights into disease patterns and their spatial context. Your point about considering the impact of location on disease factors…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 1.1 in the forum Assignment 8 months ago
Thank you all for your contributions to this fruitful discussion! While communicable diseases are widely recognized for their spatial dimension, I also would like to emphasize that place can also serve as a proxy for non-communicable diseases, which we will further explore in this course. Understanding the geographic context and environmental…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment of week 1 in the forum TMHG 517 Statistical methods in spatial epidemiology 8 months ago
Hello both,
Thank you, Farhan, for assisting your fellow classmate. As Farhan mentioned, the R-INLA package is not available on CRAN due to its reliance on external C libraries, making it challenging to build binaries. To install the package, you must use install.packages() while adding the URL of the R-INLA repository.
In section 1.4 of the…[Read more]
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Chawarat Rotejanaprasert replied to the topic General Issues of week 1 in the forum General Issues 9 months ago
Thank you for your feedback on Week 1 of the course. I’m glad to hear that you found it interesting on useful applications and data manipulation helpful. While you don’t have any questions at the moment, it’s great to see your interest in acquiring or creating vector and raster data for future use.
In upcoming modules, we will cover topics…[Read more]
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Chawarat Rotejanaprasert replied to the topic Difficulties in Finding Free GIS Data Sources for Thailand in the forum General Issues 9 months ago
Thank you for raising an important point regarding the availability of spatial health data. You are absolutely correct that it is quite difficult to find public spatial health data, which can involve serious ethical concerns, particularly in terms of patient privacy and confidentiality. As a result, such data is generally challenging to locate in…[Read more]
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Chawarat Rotejanaprasert replied to the topic Experience using GIS in the forum General Issues 9 months ago
Great comment, Zarni. I completely agree with you. GIS is a powerful tool with extensive functionality. It’s however important to recognize that in resource-limited settings, not only Myanmar, data availability and quality can present significant challenges. The “garbage in, garbage out” principle applies to data analysis in any context, not only…[Read more]
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Chawarat Rotejanaprasert replied to the topic Experience using GIS in the forum General Issues 9 months ago
Glad to hear you find GIS interesting and useful. There might be some issues along the ways, please don’t hesitate to ask questions. Embrace the learning journey and enjoy exploring the world of GIS!
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Chawarat Rotejanaprasert replied to the topic I would prefer a video instead of a long PDF in the forum General Issues 9 months, 2 weeks ago
Thank you for sharing your feedback regarding the course format. I understand that different individuals have varying preferences when it comes to learning mediums. While some prefer video formats, others find value in written materials. Although in the past there have been comments suggesting a preference for written tutorials, I appreciate your…[Read more]
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Chawarat Rotejanaprasert replied to the topic I use ArcGIS before but this is more powerful in the forum QGIS 9 months, 2 weeks ago
It’s great to hear that you find QGIS to be more powerful, though more complex. Embracing the complexity will undoubtedly provide you with a deeper understanding and mastery of the software… Regarding your preference for video tutorials, I completely understand the value of visual learning resources. However, I want to highlight that in the past t…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 2.1 in the forum Assignment 1 year, 7 months ago
Thanks Sri Budi Fajariyan for you comments. Alcohol consumption and substance use are much related to mental health which can well lead to suicide… Risk factors of mental health and suicide are generally multi-factorial. I agree economic variables are much related to suicide and depression…. Hope you find the tools you learn in this course are…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 2.1 in the forum Assignment 1 year, 7 months ago
Hello Karina, Thank you for your comments. Economic variables have been to known to relate to suicide. The results on suicide reflect that the culture in Thailand perhaps also has an effect on suicide rates. I agree that spatial analyses such as cluster detection can be applied to this issue which you’ll learn in next week! I just also learned…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 1.1 in the forum Assignment 1 year, 8 months ago
Hello Sri Budi Fajariyani and Karina, I agree that the spatial health data have limited availability due to various due to various factors; one of which is confidentiality. Moreover, spatial analyses for health data have been well developed and accessible for non-technical users for only in the last decades. Nonetheless, you will explore the…[Read more]
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Chawarat Rotejanaprasert replied to the topic Assignment 1.1 in the forum Assignment 1 year, 8 months ago
Hello Hazem, you raised a couple of good points. Data confidentiality and completeness are main issues in spatial epidemiology. Most spatial health data are available at aggregate level. Although at a coarse scale, spatial health data can well be incomplete partly due to the infrastructure of surveillance system. However we will also analyze…[Read more]
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Chawarat Rotejanaprasert started the topic Welcome to APMEN GIS workshop forum! in the forum APMEN VCWG Introductory GIS online training course 1 year, 8 months ago
Hello! Welcome to the workshop forum! Participant can create a new forum topic on the discussion board. This is where you can collaborate with others and the teaching team through posting or answering questions. You can post any concerns with the workshop, materials or any struggles with the QGIS! Note that you can also click on “Notify me of…[Read more]
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Chawarat Rotejanaprasert replied to the topic cluster analysis for point data in the forum Course Forums 2 years, 7 months ago
In this class we mainly focus on areal health data which have different names you may come across such as small area or aggregate data. Unfortunately the point data (with exact location) are not covered in this class. The models for those types are slightly different. However we can discuss if you need that tool for your research. Good comment!
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Chawarat Rotejanaprasert replied to the topic Problems with assumptions used by "Determinants of Suicide Rates in Thailand " in the forum Course Forums 2 years, 7 months ago
The analysis was using secondary aggregate-level data. So the design would be retrospective and ecological.
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Chawarat Rotejanaprasert replied to the topic Problems with assumptions used by "Determinants of Suicide Rates in Thailand " in the forum Course Forums 2 years, 8 months ago
Great comments! I am aware of the issues appearing on the paper. Actually another type of modeling for counts and rates will be introduced next week and I also plan for each student to discuss the model assumptions and propose an alternative which are essentially what you just did! So perhaps it would be beneficial for the class to have…[Read more]
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