To learn more about Geo RGB, visit us at: giscourse.online/ Visit us in the facebook page at: facebook.com/GeoRGBCommunity Contact us at: admin@giscourse.online
Thank you so much, teacher! You make it all flow in a simple manner. An excellent video, very well explained and easy to follow along! Installing the programs and making them work was just a breeze. Looks like I'll be following the whole series. It really seems that good!
Dear sir, how is it possible to pair catchments size with any environmental variable using linear or logistic regression using R in QGIS? Can you give me some advice? Thanks so much
Hi Abigail and thank you for being active at the comment section. I am not sure about how to answer you question. I am wondering if you can question for something more concise. Also, if you provide some context (geologic, meteorologic, hydrologic, etc.) it is going to help a lot. Cheers
@@GeoRGBCommunity Dear sir, in the context of hydrologic, I'm thinking to pair up the catchment size with the water parameters data ( any environmental variable) such as the pH, BOD, etc. I'm currently using QGIS 3.16 and I have managed to install the rscripts. But now I'm not so sure whether to proceed with linear or logistic regression. I don't know where to start on this. I'm looking forward for your insights on this. Thanks so much
@@abigaila.jubilee6329 I am sorry, but I am not sure how I can help you. You can use liner correlation to see if there is any relation between 2 or more quantitative variables. You can use logistic regression to see if there is any relation between one qualitative (binary) variable and one or more quantitative variables. Each catchment areas has its own particularities an you can find relations between its size and other parameters, like rain, number of trees, recharge of aquifer, etc.
Thank you for the positive comment. In general the folder appears by default, if that is not your case, just create a new one and assign the location in the directory of the QGIS.
Dear Professor, Thank you very much for this course, I'd love to know what technic specifications your computer has because I see it runs R and QGIS at the same time very fast, while mine gets slow when I use QGIS. What kind of processor, RAM and hard disk would you recommend? Thanks
Hi Maria. The time that mine computer takes to compute the information some times is not real because I changed the speed of the video. In fact, most of the time I am working with a virtual machine that has limited resources. I am not sure what could be the recommendation but I can tell you what I have. processor: i7-700 3.60 GHz, RAM 24 GB and 1 GB state solid disk. With this setup if have no problems, but if I have to move 3D LIDAR data it gets also slow. However, taking in consideration the things that we are doing in this first course of geostatistics, you shouldn't have any problem. Maybe it is time to clean your computer or consider to get a new one.
Hello and Thank you.Any Idea how to solve this, the first time is running(UBUNTU): Error in library("sf") : there is no package called ‘sf’ Execution halted
Hello! I am watching this course with the intent to "redo" these concepts in Python with packages such as Geopandas, Seaborn, Geostat and PyKrige, do you think Python is the way to go moving forward? I have not been having any trouble following along step by step with just python!
Hello! That sounds like a great exercise to learn both Python and QGIS at the same time. Python is definitely a promising tool for the future of GIS, and your approach of redoing these concepts with packages like Geopandas, Seaborn, Geostat, and PyKrige is a smart move. Keep it up-you're on the right track!
dear sir. thanks for your help. I want to use regression Kriging to estimate the carbon storage in the study area. But the residuals can't satisfy the normal distribution. How can I adjust the residuals to satisfy the normal distribution. Or should I continue with Kriging the residuals? Can you give me some advice?
Hi Rain Xia. The next 2 or 3 lesson for the "Second Geostatistics Course. Bivariate analysis with R and QGIS" are going to be about regression analysis. We are going to talk a lot about residuals, for simple regression and for multiple regression. We are going to see how to fit the proper polynomial to our data in order to avoid to have any trend in the residuals. We are going to do the analysis for 2 and 3 dimensions. Just stay tuned. Cheers
Hi Belvie, I purged all the website. You can try it again. If it does not work, please let me know. If you can provide a detailed explanation about what is exactly happening, I will appreciate it. Thanks
Hi Richard. Thanks for the info. I am not sure why you cannot find the Processing R Provider plugin. Maybe, you are using a very old QGIS version. My recommendation is reinstall QGIS in the last version and see what happen. See the link below, it is from the official QGIS website. Please, let me know if you need more guideline. docs.qgis.org/3.16/en/docs/training_manual/processing/r_intro.html
To learn more about Geo RGB, visit us at:
giscourse.online/
Visit us in the facebook page at:
facebook.com/GeoRGBCommunity
Contact us at:
admin@giscourse.online
I realize it is kind of off topic but does anyone know of a good website to stream new series online ?
@Merrick Orion flixportal :P
@Camdyn Abraham Thank you, I went there and it seems like a nice service =) I appreciate it!!
@Merrick Orion happy to help :)
Thank you for sharing. This is the best tutorial I have come across so far for a noob to get started 👍
Thanks for your positive comment!
Thank you so much, teacher! You make it all flow in a simple manner.
An excellent video, very well explained and easy to follow along! Installing the programs and making them work was just a breeze.
Looks like I'll be following the whole series. It really seems that good!
Thank you so much for your feedback, I really appreciate it.
So excited for the course...thank you sir
Thanks for comment.
Very intetesting course
Thanks :)
Thank you very much sir.
Well explanation
regards for you Sir
Thanks :)
Dear sir, how is it possible to pair catchments size with any environmental variable using linear or logistic regression using R in QGIS? Can you give me some advice? Thanks so much
Hi Abigail and thank you for being active at the comment section. I am not sure about how to answer you question. I am wondering if you can question for something more concise. Also, if you provide some context (geologic, meteorologic, hydrologic, etc.) it is going to help a lot. Cheers
@@GeoRGBCommunity Dear sir, in the context of hydrologic, I'm thinking to pair up the catchment size with the water parameters data ( any environmental variable) such as the pH, BOD, etc. I'm currently using QGIS 3.16 and I have managed to install the rscripts. But now I'm not so sure whether to proceed with linear or logistic regression. I don't know where to start on this. I'm looking forward for your insights on this. Thanks so much
@@abigaila.jubilee6329 I am sorry, but I am not sure how I can help you. You can use liner correlation to see if there is any relation between 2 or more quantitative variables. You can use logistic regression to see if there is any relation between one qualitative (binary) variable and one or more quantitative variables. Each catchment areas has its own particularities an you can find relations between its size and other parameters, like rain, number of trees, recharge of aquifer, etc.
Thank you very much for the course.
I couldn't find the folder to download and import the R scripts into QGIS.
Thank you for the positive comment. In general the folder appears by default, if that is not your case, just create a new one and assign the location in the directory of the QGIS.
Dear Professor,
Thank you very much for this course, I'd love to know what technic specifications your computer has because I see it runs R and QGIS at the same time very fast, while mine gets slow when I use QGIS. What kind of processor, RAM and hard disk would you recommend?
Thanks
Hi Maria. The time that mine computer takes to compute the information some times is not real because I changed the speed of the video. In fact, most of the time I am working with a virtual machine that has limited resources. I am not sure what could be the recommendation but I can tell you what I have. processor: i7-700 3.60 GHz, RAM 24 GB and 1 GB state solid disk. With this setup if have no problems, but if I have to move 3D LIDAR data it gets also slow. However, taking in consideration the things that we are doing in this first course of geostatistics, you shouldn't have any problem. Maybe it is time to clean your computer or consider to get a new one.
Hello and Thank you.Any Idea how to solve this, the first time is running(UBUNTU): Error in library("sf") : there is no package called ‘sf’
Execution halted
You either need to install the SF package or upload it into R using the library function. Library (sf)
Hello! I am watching this course with the intent to "redo" these concepts in Python with packages such as Geopandas, Seaborn, Geostat and PyKrige, do you think Python is the way to go moving forward? I have not been having any trouble following along step by step with just python!
Hello! That sounds like a great exercise to learn both Python and QGIS at the same time. Python is definitely a promising tool for the future of GIS, and your approach of redoing these concepts with packages like Geopandas, Seaborn, Geostat, and PyKrige is a smart move. Keep it up-you're on the right track!
Thanks prof
You are welcome
dear sir. thanks for your help. I want to use regression Kriging to estimate the carbon storage in the study area. But the residuals can't satisfy the normal distribution. How can I adjust the residuals to satisfy the normal distribution. Or should I continue with Kriging the residuals? Can you give me some advice?
Hi Rain Xia. The next 2 or 3 lesson for the "Second Geostatistics Course. Bivariate analysis with R and QGIS" are going to be about regression analysis. We are going to talk a lot about residuals, for simple regression and for multiple regression. We are going to see how to fit the proper polynomial to our data in order to avoid to have any trend in the residuals. We are going to do the analysis for 2 and 3 dimensions. Just stay tuned. Cheers
Hi Marcel. thank you for this courses. i try to enroll but its not work. please help me. thanks
Hi Belvie, I purged all the website. You can try it again. If it does not work, please let me know. If you can provide a detailed explanation about what is exactly happening, I will appreciate it. Thanks
@@GeoRGBCommunity thanks. i am try to create a new account
“I’m not a math guy” same friend 😢
Can't find Processing R Provider in QGIS plug in. I bet nobody got through this lesson.
Hi Richard. Thanks for the info. I am not sure why you cannot find the Processing R Provider plugin. Maybe, you are using a very old QGIS version. My recommendation is reinstall QGIS in the last version and see what happen. See the link below, it is from the official QGIS website. Please, let me know if you need more guideline. docs.qgis.org/3.16/en/docs/training_manual/processing/r_intro.html
@@GeoRGBCommunity Thank you sir
@@GeoRGBCommunity Is there any way to use qgis to make an image processing plug in? I want to make it useful for friends who cant code.
I can code in R
Hi Richard. I believe you can do that with Python.
Thank you