You prolly dont give a shit but does someone know a trick to get back into an Instagram account?? I was dumb forgot the login password. I would love any help you can offer me
@Xzavier Bridger i really appreciate your reply. I got to the site on google and I'm in the hacking process atm. I see it takes a while so I will reply here later with my results.
Watched all your videos within 2 days!!! Awesome, so simple representation. Loved it. Please try to do PLS, regression based (RF, SVM, ANN), Heatmap, Self Organizing Map. Heartfelt thanks!
This was useful, thank you very much for doing this. It would be good though to explain some of the concepts and the reason for some of the functions, but otherwise, greatly appreciated.
Dear Sir @Dr.Bharatendra Rai When I run the graph(c(1,2)), it said "Error in plot(g) : object 'g' not found " How could I build 'g' (graph storing place) to link with the application? thank you so much.
This is an extremely useful video. I had a quick question; I want to predefine the strength/state of a node (continuous variable) and the strength of the relation (weak, medium, high) and thereafter run various analyses like centrality and community. I think I can relatively easily vary the strength of the relation using different integer values to correspond to the the strength of the relation but struggle with the varying the state of the node. Could you potentially guide me to the appropriate resources? Thank you very much.
You have made a wonderful video. Can you please explain the use of set.seed(222) command before the network diagram? Is there anything random in the diagram?
Hello Dr. Rai. Thanks for your educational video. It is very helpful and useful. I wish you could help me I did not get a link and a directed arrow as shown in your video. I got an area of shape around the two nodes when I execute g
Thanks for sharing. How to set a distance between each factors? In your example, when you create a graph with a lot of factors (AA, CA, CC...), it looks messy with the default.
Do you maybe also have a lecture on a network analysis with just a few nodes (In which the nodes are not individuals but rather "groups"), and based on data from intervieuws?
Excellent tutorial. Your custom network visualisation is better than what i2 Analyst Notebook produces. Is it possible make labels appear for only specific nodes/vertices in the network, and make all other labels blank?
Sir I am getting this error: plot(net, + vertex.color=rainbow(52), + vertex.size = V(net)$degree*0.4, + edge.arrow.size=0.1, + layout=layout.fruchterman.reingold + ) Error in plot.window(...) : need finite 'xlim' values In addition: Warning message: In max(vertex.size) : no non-missing arguments to max; returning -Inf
Great video. Any idea what to do if we get this error message for the last community detection step? I'm using my own/different data set. Thanks Error message: Error in simple_vs_index(x, ii, na_ok) : Unknown vertex selected
I have uploaded a csv file and I am able to see it. But when I run the data.frame function, it says I have a data frame with 0 columns and 0 rows. What could be the problem?
Not able to draw histogram, showing "Error in hist.default(V(net)$degree, col = "green", main = "Histogram of Node Degree", : 'x' must be numeric" Please help
@@bkrai you're welcome 🙂 we just finished the theory of social network analysis and now we need to apply our knowledge!!! These videos are extremely helpful to understand the theoretical concepts and start exploring the possibilities of social network analysis with data!
Thanks for the great vid! Everything's going fine until I'm trying to import csv data and work with it. Getting this error - Error in graph.data.frame(y) : the data frame should contain at least two columns.
Sir excellent explanation sir , the only problem I am facing is I am unable to read the dataset it is showing that the file is in rich format. Sir I request you to please look into it
@@bkrai Many thanks Dr Rai for your kind response. Further i would like know how to set legend for plots based on the value of vertices . Also how to assign colors for vertices based on their degree of centrality or betweenness values etc. I mean that heat map like colors .
Could you please re-explain how to calculate diameter? You passed quickly over this point. Why it is 2 here? Is there a formula to calculate it like edge-density?
Diameter in a network is the shortest distance between the two most distant nodes. In the video example, if you consider Kate & Amy to be two most distant nodes, then the shortest distance has 2 connections. Same is true for Kate and Ram.
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Your editing, clarity, and explanations were excellent! I am very pleased to have come across your video; thank you for taking the time to make it!
Thanks for your comments!
Thank you so much for taking the time to record this, Dr Rai! This is really helping me create my thesis.
You are welcome!
Best video on social network analysis!
Thanks for comments!
Dr. Bharatendra Rai Sir do you have documentation for this project ?
Thank you very much. Your videos are my first stop for anything in R programming. Your videos have the highest degree centrality :-)
Wow, thanks!
The best tutorial on youtube on social network analysis. Thank you, Sir.
Thanks!
Dr. Rai, I really like the way you make presentation.
Many thanks!
This is wonderful. Teh network graphs are pretty. Thanks a lot Dr. Rai!
You're most welcome!
I don't know how to thank you! simply, I am grateful
You're very welcome!
Very simple and understandable, Thumbs up Sir.
Programmer with basic knowledge can very easily learn it and re implement it
Thanks for the feedback!
@@bkrai I am from Pakistan and I really respect Indian teachers
I will surely contact you soon
Thanks for your comments!
Another incredibly useful lecture! Thank you Dr. Rai! Be well.
You're most welcome!
You prolly dont give a shit but does someone know a trick to get back into an Instagram account??
I was dumb forgot the login password. I would love any help you can offer me
@Cristiano Jax instablaster =)
@Xzavier Bridger i really appreciate your reply. I got to the site on google and I'm in the hacking process atm.
I see it takes a while so I will reply here later with my results.
@Xzavier Bridger It worked and I finally got access to my account again. I'm so happy!
Thank you so much you saved my ass!
Watched all your videos within 2 days!!! Awesome, so simple representation. Loved it.
Please try to do PLS, regression based (RF, SVM, ANN), Heatmap, Self Organizing Map.
Heartfelt thanks!
For regression based RF, see:
ruclips.net/video/hCLKMiZBTrU/видео.html
Thank you Dr. Rai. The best Video ever!
You are welcome!
Thanks for your great explanation! It's really important to my thesis!!!
You're very welcome!
Hello Sir, thank you once again for a fantastic demonstration. You are helping so many with these videos!
You are very welcome!
Thank you sir, you really saved my life! Love your videos, it's just so excellent
You are welcome!
Thank you very much, so clear presentation.
You are welcome!
Thank you Dr. Rai!!
Most welcome!
If you guys are looking for the best social network analysis it was a great tutorial.
Thanks!
Sir, excellent lecture on R
That's a great insight sir, Could you please specify what does the grade and spec specify in the dataset or how to intrepert in terms of examples.
We have not used those columns, so you may ignore them.
This was useful, thank you very much for doing this. It would be good though to explain some of the concepts and the reason for some of the functions, but otherwise, greatly appreciated.
Thanks for the feedback!
Very smooth lecture. Thanks
Excellent introduction. Thank you very much!
Thanks for comments!
Thanks for the video. May I ask something pls? How to thicken the line based on the weight for example? Thx
why do we have to make the graph undirected for the community detection?
Directed too can be easily done.
Thank you dear sir for your videos. It will help me with my data science projects as a learner. I hope that i can reach you for my queries.
You are most welcome!
Such a great tutorial. Saved me lot of time!
Great to hear!
i run this code
#social network analysis
library(igraph)
g plot(g)
Error in plot(g) : object 'g' not found
please why this happened ? thanks sir.
Make sure to run the library line.
Im little bit confusing in the place of read data file hot to add the file sir
For R and data file, refer to the link in the description area.
So very helpful! thank you!
You are so welcome!
Dear Sir @Dr.Bharatendra Rai
When I run the graph(c(1,2)), it said "Error in plot(g) : object 'g' not found
"
How could I build 'g' (graph storing place) to link with the application?
thank you so much.
what are the packages that should be installed beforehand?
You need to install igraph
Sir from where we can get the dataset?
There should be a link below video.
This is an extremely useful video. I had a quick question; I want to predefine the strength/state of a node (continuous variable) and the strength of the relation (weak, medium, high) and thereafter run various analyses like centrality and community.
I think I can relatively easily vary the strength of the relation using different integer values to correspond to the the strength of the relation but struggle with the varying the state of the node. Could you potentially guide me to the appropriate resources?
Thank you very much.
You have made a wonderful video. Can you please explain the use of set.seed(222) command before the network diagram? Is there anything random in the diagram?
The node placements are randomized. set.seed helps to get same layout if you run the code several times.
Do you have a documentation I can go through, for the same project sir?
You can find documentation (about 450 pages) at this link: cran.r-project.org/web/packages/igraph/igraph.pdf
Wow! Absolutely brilliant tutorial. Very very helpful.
But how to print dense connections and sparse connections in community detection?
You can save them as pictures and then print.
@@bkrai I mean to say how to print the nodes or groups. I don't need the pictorial representation.
Hello Dr. Rai. Thanks for your educational video. It is very helpful and useful. I wish you could help me I did not get a link and a directed arrow as shown in your video. I got an area of shape around the two nodes when I execute g
Your codes should be:
g
Dr. Bharatendra Rai ok. Thanks.
Excellent tutorial.
Thanks for sharing. How to set a distance between each factors? In your example, when you create a graph with a lot of factors (AA, CA, CC...), it looks messy with the default.
It's better to filter out data that are less frequent to reduce complexity.
Mr.Bharat, can we know the source of the file networkdata.csv? From where it has been taken?
Regards
It is not a real data, but made up data for practice purposes.
Thank you Sir.
Do you maybe also have a lecture on a network analysis with just a few nodes (In which the nodes are not individuals but rather "groups"), and based on data from intervieuws?
Thanks for sharing your knowledge, I appreciate it.
Kind Regards
Thanks for comments!
which algorithm is used sir?
Hi, Sir! Thank you at the first place for the wonderful knowledge! But may I ask a question? "data
It lets you choose wherever your file is, provides more flexibility and works fine on Mac or Windows.
Question, what is character string?
Excellent tutorial. Your custom network visualisation is better than what i2 Analyst Notebook produces. Is it possible make labels appear for only specific nodes/vertices in the network, and make all other labels blank?
I don't have igarph library not working what to do please help somebody
You can run following first:
install.packages("igraph")
Sir whenever i plot anything the arrows are big sometimes then circle are small of graph so basically the appearence of plot is very unsymmetrical
How to add values (weights) to the file created that way?
what is grade and spec columns used for??
Excellent tutorial. Where can we find data to make this type of analysis?
There should be a link below this video.
@@bkrai Yes, What I mean is different dataset from real world situations
Sir I am getting this error:
plot(net,
+ vertex.color=rainbow(52),
+ vertex.size = V(net)$degree*0.4,
+ edge.arrow.size=0.1,
+ layout=layout.fruchterman.reingold
+ )
Error in plot.window(...) : need finite 'xlim' values
In addition: Warning message:
In max(vertex.size) : no non-missing arguments to max; returning -Inf
I don't get a colorful graph when I use layout fruchterman.reingold in plot. How do I fix it
Great explanation thanks
Thanks for comments!
Thanks for excellent video on igraph package , it is very helpful, Sir please suggest how to sample network.
You can sample data itself before making the network.
@@bkrai but for large sample it will be difficult to handle. I want it to sample subgraph having some conditions..
Hello sir, I wanted to know whether you think this would make a good mini project or not?
Yes this should work. You can also include some ideas from this playlist for the project:
ruclips.net/p/PL34t5iLfZddtfgOcE6aKCEXWtCkolpgjV
Hi Dr, How can we make a data frame with a data set with more than two column as in the tutorial we had first and second as columns
Helped a lot. Thank you, sir. 👍
Thanks for comments!
Tell me about some projects name using data mining in r studio plzz
You can try this:
ruclips.net/p/PL34t5iLfZddsQ0NzMFszGduj3jE8UFm4O
Great video. Any idea what to do if we get this error message for the last community detection step? I'm using my own/different data set. Thanks
Error message: Error in simple_vs_index(x, ii, na_ok) : Unknown vertex selected
Hello Sir, Do you take any online courses? I would love to enroll because you explain the best :)
Thanks for your comments! My online courses are at UMass-Dartmouth.
Thank you for useful tutorial. Could you guide how to calculate # of diameters? Why is 2?
the columns "grade" and "spec" never been used this project?
yes, here we only used 1st two columns.
I have uploaded a csv file and I am able to see it. But when I run the data.frame function, it says I have a data frame with 0 columns and 0 rows. What could be the problem?
I am also working with the 3.5.0 R application version, not R studio.
I would suggest you use RStudio since it is much easier to work with and is very user-friendly.
@@bkrai Thank you very much for the prompt response. I was actually able to run it by not specifying the column names. Thank you!
ok, thanks for the update!
New to using R for social network analysis. Does anyone know the analogous commands in the new 3.4.3 version?
Since this is very recent, you will not notice any change in 3.4.3.
I didn't realize igraph was a separate download. Everything is working now. Thanks for the great video!
That's great!
Hey Prof! Great Video. I can't understand the use of set.seed( ) function. Can anyone help?
It is used for repeatability, so that when you run codes again, you get same pattern. If you don’t use it, the patterns may randomly change.
@@bkrai Got it Prof.! Thanks a lot!!
Welcome!
Excelente tutorial me ha servido de mucha ayuda.
Thanks for comments!
thank you！this video helps me a lot
Thanks for comments!
Thank you for great lecture
You are welcome!
Not able to draw histogram, showing "Error in hist.default(V(net)$degree, col = "green", main = "Histogram of Node Degree", :
'x' must be numeric" Please help
Very helpful!!!
Thanks!
@@bkrai you're welcome 🙂 we just finished the theory of social network analysis and now we need to apply our knowledge!!! These videos are extremely helpful to understand the theoretical concepts and start exploring the possibilities of social network analysis with data!
Thanks for comments!
Sir , can you tell mw how to find simple cycles in a directed graph
Thanks for the great vid! Everything's going fine until I'm trying to import csv data and work with it. Getting this error - Error in graph.data.frame(y) : the data frame should contain at least two columns.
It says 'the data frame should contain at least two columns'. Make sure the data format is ok.
I was having a similar issue. I found data$ - column name is case sensitive.
learnt a great deal. thanks so much
Thanks for comments!
The video is good to teach someone...
Thanks for comments!
Thanks! So helpful
Sir excellent explanation sir , the only problem I am facing is I am unable to read the dataset it is showing that the file is in rich format. Sir I request you to please look into it
The file has csv format. Make sure not to change that.
@@bkrai
Yes sir I am aware that it is in CSV format but when I try to read it using read.csv().
It is showing error sir
@@bkrai
data
@@bkrai
sir and also while creating a network this statement is showing error
net
That's not an error. It is just a 'warning message'.
really good Video, i love you
Thanks for comments!
Very clear, excellent!. I would like to know syntax of plotting dendrogram please
Sujith_ PhD Student, Sri Lanka
You can refer to this:
ruclips.net/video/otjWCaMcVaA/видео.html
@@bkrai Many thanks Dr Rai for your kind response. Further i would like know how to set legend for plots based on the value of vertices . Also how to assign colors for vertices based on their degree of centrality or betweenness values etc. I mean that heat map like colors .
Could you please re-explain how to calculate diameter? You passed quickly over this point. Why it is 2 here? Is there a formula to calculate it like edge-density?
Diameter in a network is the shortest distance between the two most distant nodes. In the video example, if you consider Kate & Amy to be two most distant nodes, then the shortest distance has 2 connections. Same is true for Kate and Ram.
Thanks . Now it is clear.
Respected sir, please provide me a research paper on this project. That would really be helpful
Thank you so much, the best one
Thanks for feedback!
Bharatendra Rai did you make video on machine learning? Because my sir teaching so bad?
You can find them in machine learning playlist on my channel.
Bharatendra Rai Thank you
Thanks， so good!
Thanks for comments!
If anyone knows a tool for resource comments sections to apply to a neural net let me know
I didn't get your question.
Link is not working
I just now checked, the video runs fine.
@@bkrai link in description r file not working
@@pa1kumarbhukya Working for me. Do you have R downloaded?
I come from Taiwan,and my English is poor.The video be used for me
Thanks for comments!
The best tutorial on youtube on social network analysis. Thank you, Sir.
Thanks for comments!
Thank you very much, the video is wonderful!
You are welcome!
Very useful, thanks!
You're welcome!
Thanks for the great lecture
You are welcome!