Web Apps in R: Building your First Web Application in R | Shiny Tutorial Ep 1

[@DataProfessor]

🤔QUESTION OF THE DAY: What web app do you want to build? Please share your Comments down below! 😃 💗Help support this KZbin channel by hitting the Subscribe button, Like button and Comment down below! 👇

[@lorenaferreiramarani126]

Hello, dear teacher! I'm trying to build an App to prepare the data, run predictive models and plot some dashboards. As you said, it seems simple, but very powerful! The hardest part right now, for me, is how to prepare the csv before running any model, deleting empty rows, for example. I have the traitment code, but i don't know, yet, how to make it work on the server side. Yes, i'm a beginner :) let's study! Genial and very didatic video! Please, don't stop this topic! :( Regards from Brazil

[@vineetht5343]

Create a secure responsive web app with login, CRUD pages then log out including proper session handling

[@brilliancetventertainment9416]

@Data Professor can you put together a database monitor using horizontal bar charts displaying data over 5 days.....so essentially query a relational db and display in a table the number of covid19 cases of the top 10 countries vs date (within 5 days).....UI should have a search bar and a filter

[@alejandrodelaossa4455]

I would like to do one in which I could download a table information into a dataframe from a PDF or jpg file!

[@DianaHorvath-q6l]

Your method of teaching is super accessible! Thank you for sharing.

[@christiankincaid7459]

Thank you for uploading this, Professor -- I am just beginning your series and it is extremely helpful!

[@DataProfessor]

Thanks Christian for the kind comments! Glad you’re finding the series helpful! 😃

[@rgvn5]

Thank you so much! I love that you explain the concepts and leave the details up for us. Many times people go into the details and it becomes confusing

[@HiltonFernandes]

Great ! Possibly the best presentation I hear on shiny. Congratulations !

[@DataProfessor]

Wow, thank you!

[@StatisticsGlobe]

Thanks!

[@StatisticsGlobe]

Thanks a lot for this great series Chanin, it helped me a lot!

[@DataProfessor]

Wow, thanks so much for the kind support :)

[@girtsbebrs]

For those getting a 'Error in tag("form", list(...)) : argument is missing, with no default' error, try removing the extra commas in lines 27 and 34 under the UI part. Thanks Professor for the content.

[@winstonyap1856]

Dear Prof Chanin Nantasenamat, this is an amazing video. Thank you for your clear explanations. I am just starting out with Shiny and looking to develop an exploratory data interface for my research project. I am based in Singapore. Your videos have been most helpful. Thank you for your time and for sharing your knowledge.

[@DataProfessor]

Thanks Sub ZerroX for the comment and kind words, I am glad that the video is useful. It is a pleasure to make these educational videos.

[@nnennaumelloh8834]

This is so incredibly helpful! Thank you! I'm going to watch the entire playlist!

[@DataProfessor]

Awesome, glad the playlist was helpful, I might be adding some more videos to this playlist in the near future 😊

[@happyebb]

lovely approach breaking this down in Layman's terms

[@thiagoberton149]

Great video! Thank you so much for explaining how UI and server interact. That helped me a lot!!

[@DataProfessor]

Thiago, Glad it helped! 😃

[@2008pmx]

Wow! amazing clarity of thought and explanation, thank you so very much for this.

[@DataProfessor]

Thank you for the kind words 😊

[@WSTRADER]

Incredible! Amazing class Thank you very much, subscribed, I'm excited to see more of this series, I'm learning Shiny and will be very helpful!

[@DataProfessor]

Thank you for your support! More on the way!

[@mcnamarachiwaye6359]

@@DataProfessor Error in tag("form", list(...)) : argument is missing, with no default. USING HP windows 7

[@rattikansaelim4543]

Such a clear explanation, prof, you kind of save my life,... a million thanks!

[@RafaelCle]

Your english is so clear! It's an amazing video" Thanks!

[@DataProfessor]

Thanks!

[@simonchantack23]

Great introduction to Shiny App in R . Clear and simple explanation. Thanks

[@mikhaeldito]

You are making a lot of great content! Very informative and not pretentious. Please keep up the great work!

[@DataProfessor]

Thanks for the uplifting comment! 😃

[@PINOYNEWS3]

Thank You Sor Much professor

[@DataProfessor]

Thank you for watching 😃

[@deepansharora7942]

DUDEEE, You're a LEGEND!!! Thanks for sharing all this!! You just earned a sub.😃

[@DataProfessor]

Awesome, welcome to the channel!

[@carlyadams8274]

My job has used RShiny for data visualization for one area of data, but I am looking to change from Tableau to RShiny in the data I work in. These video's are setting me up for success. Thanks!

[@fabzy4L]

Hey doc, thanks for creating this channel! I’m not a bioinformatician, but I sure want to up my game 🙏🏼.

[@fabiovakuda745]

Thank you! It was better than many paid courses out there

[@DataProfessor]

Glad to hear and thanks for watching! 😆

[@wiserhappierricher3147]

Thanks Data Proff. this was very efficiently made, very clear. Thanks alot :) Looking forward to more complex usage of R Shiny Web Apps Videos

[@DataProfessor]

Thanks for watching 😊

[@adigandhi5714]

Just what I was looking for! Awesome work!!

[@DataProfessor]

Glad to hear it!

[@fafoul4672]

Great video, very detailed, very clear, and comprehensible. Thank you!

[@DataProfessor]

Thank you for the kind words, glad to hear that! 😊

[@laboniakter607]

I am a beginner.I have found this video so informative and helpful...Thank you Professor for sharing this video.

[@DataProfessor]

Glad it was helpful!

[@maanasmohan882]

Thank you prof for a simple and precise explanation. :)

[@DataProfessor]

Glad it was helpful!

[@Parakak]

Thank you very much, professor! These tutorials helped me a lot! :)

[@bimaldatta4802]

Best explanation, I have ever seen ! @ Data Professor

[@DataProfessor]

Thanks for the kind words!

[@macanbhaird1966]

Great tutorial. Thanks for this. I am new to this so not 100% following in terms of speed but you did a great job at explaining this and cutting to the key points.

[@DataProfessor]

Thank you for watching, Andrew! Glad the video was helpful, I am always trying to improve, please feel free to let me know how I can do better. 😊

[@doctormiswo624]

great video, great explanation. looking forward to the next videos.

[@DataProfessor]

Michael, thanks for the kind comment! I am currently editing the next video and will be finish soon, please stay tuned. Make sure to turn on the notifications to be notified immediately of the new video I release. Thanks for your support 😃

[@pattamalaokarnchanakorn4888]

Like the way to teach Easy to follow step by step Very useful Awesome work

[@David-dy2wx]

Hi Chanin, thanks so much for this, very informative and I hope to implement it in my next project. Really interested to hear more about your research lab tips and such in the future video! Always find your videos so clear, concise and easy to understand the way you deliver it.

[@DataProfessor]

Thanks for your kind words and for the suggestion I will definitely consider this for future video.

[@adiamirudin430]

This is a clear explanation, THankyou!

[@DataProfessor]

You're welcome! And thanks for the kind words!

[@aniwahidaabdulrahim1918]

Thank you so much for the clear explanation. A good video for quick revision. Look forward for more informative videos from you!! Definitely will recommend this youtube channel to my classmate. Heads up :D

[@DataProfessor]

Ani Wahida, Thank you for the kind words! Are you a computer science major?

[@aniwahidaabdulrahim1918]

@@DataProfessor Nope Prof. I'm taking Bachelor of Information System and I do learn Introduction to Data Science as part of my syllabus in my university 😃😄

[@mido50ish]

@@DataProfessor Excuse me! the action button is not working even after running the observeEvent function. Could you please help me with this? Thanks

[@fernandoantoniodemeloperei3725]

Thanks. An amazing and clearly explanation.

[@DataProfessor]

Wow, thanks for the kind words, glad the video is helpful 😊

[@luciferkhusrao]

Incredible video sir. I found this video very useful. Thanks a lot, sir

[@DataProfessor]

Thanks Mainak for the kind comment, glad it is helpful 😃

[@rose_z_m]

Thank you very much. You explain so clear and good :)

[@DataProfessor]

Rosa Mohammadi Thank you for the kind words 😊

[@soumenroy7907]

Another great tutorial from you...you are excellent...!!

[@DataProfessor]

Thank you for watching and glad it was helpful 😃

[@guilianamustiga2962]

explained super clearly, thank you so much!

[@DataProfessor]

You're very welcome!

[@jinlinwu1423]

Thank you very very much for your oustanding teaching!

[@DataProfessor]

Thank you for the kind words 😃

[@คีตาขํามาลัย]

อธิบายง่าย เข้าใจการใช้เบื้องต้นเลยครับ

[@DataProfessor]

ขอบคุณครับคุณ Keeta

[@rachetabisht1022]

Amazing video. Helped me alot!!!

[@DataProfessor]

Glad it’s helpful, thanks for watching 😊

[@TriSixty]

Quite helpful 👍

[@chase2879]

Really helpful. Thank you

[@DataProfessor]

Glad you’ve found it helpful 😄

[@zenachuchacha7801]

Thank you so much! I will try and inform my effort if I'm successful.

[@josfk860]

Brilliant!!

[@DataProfessor]

Thanks!

[@shiyujia6394]

Soooooo helpful!!!

[@DataProfessor]

Thanks!

[@angienorelismendozaperez6840]

Muchas Gracias por estos videos que vienen cargados de mucha información, saludos

[@DataProfessor]

Thanks!

[@umobileududevi6923]

Clearly explained intro🤗

[@DataProfessor]

Thanks for the kind comment 😃

[@nedstrader7494]

Great Into to the Shiny App. Looking for an example of creating a Stock Data application that shows the structure of a dynamically updated process as the time interval changes where we receive new time data and it is reflected in the stock data chart.

[@israelalejo-conde2417]

Copied and pasted the code, just a note. My code didn't run before deleting the end of line commas on lines 27 and 34. Thank you for this content, it is much appreciated!

[@DataProfessor]

Thank you for watching and for the note!

[@jiteshaudichya3607]

Thanks you professor for explaining this. I am completely new to R and this helps a lot to get started with. I have a question here, we are accepting input from this web app as txt1 and txt2 and making server to return txtout, are we storing txt1 and txt2 in any DB or its just stored in the variable and later vanished? Is there any video available with database interactions? I have subscribed to the channel though :)

[@DataProfessor]

Its the first approach that you mentioned, txt1 and txt2 are stored as variables and later used by txt out. Welcome to the channel!

[@kush.blackbelt]

Next time please do show the aap as well which you build, do that everyone could understand what is build 😉

[@DataProfessor]

Hi, do you mean the apps that I built for research? There's the osFP which is available at codes.bio/osfp and the paper is available at jcheminf.biomedcentral.com/articles/10.1186/s13321-016-0185-8

[@davidhacquard4878]

Thank you very much for your tutorials which are very useful. I would like to make a shiny app that takes a complex dataset as input. I have to sort it and then make a lot of graphs and tables. The goal is that people without any knowledge of R can use the app and get data processing. Do you have an example of a similar shiny app? Thank you!

[@DataProfessor]

Hi David, that's a great initiative. One can use ggplot2 to make such visuals from the input data. The layout can be made into a dashboard via shinydashboard (rstudio.github.io/shinydashboard/). There's a gallery that contains a lot of example apps that may serve as inspiration for making your own at the following URL: shiny.rstudio.com/gallery/ Hope these ideas helps 😊

[@cienciadedadoscomr2759]

Great!

[@DataProfessor]

Thank you for watching😃

[@manuelrodriguez696]

Very nice video, thank you! Do you know if I can make API calls to some distant models from R Shiny (like a model that would be hosted somewhere else in the cloud)?

[@DataProfessor]

Thanks for watching! Yes you can! You'll have to assign the API call to an R variable and call that from within R Shiny.

[@manuelrodriguez696]

@@DataProfessor thanks!

[@juliangrandvallet5359]

Thanks for sharing!!! What's the name of the background you're using??

[@DataProfessor]

you mean the color theme for RStudio? It’s cobalt

[@juliangrandvallet5359]

@@DataProfessor That one! thank you Professor!!!!

[@gracemegalestariipb989]

Thank you very much. I'm a beginner in R and your video helped me a lot! I wanna ask you prof. Can I share my RShiny dashboard to my friends with different LAN without make a RStudio Connect account?

[@DataProfessor]

Unfortunately, not over different LAN, but would probably work on the same LAN. Otherwise would have to deploy to the cloud. Hope this helps.

[@debonomark61288]

Hi Professor, thanks a lot, very interesting! Is there a way on how to put any calculator like this, to run on my personal website? Thank you

[@DataProfessor]

I think you would like to deploy the web app publicly, yes it is possible, in the next upcoming video I will show you how

[@debonomark61288]

@@DataProfessor that would be a cool video thanks a lot!

[@JohnJohn7845]

Great video :) Does the server store what it is being informed? I am considering making a web app to show some visuals based on data that is extracted from a database using a JWT token. Hence should the user be cautious with using their bearer token in such a scenario?

[@musicspinner]

Can you tell me more about "input" , "output", and the "$"? What is input/output and when/where do you use the "$" and why? Thanks.

[@geordiemcruer6997]

you use "$" to indicate a variable column within a data frame. So df$height is the "height" column within the data frame called "df"

[@matiasvillalobos2237]

Amazing video! thank you so much!

[@DataProfessor]

Thank you for watching 😃

[@vicky29508]

@ data Professor thanks for your informative video and I learned alot from your videos. I need your help as I had built a web survey app with 4 tabs in shinny where I have used radios buttons in each tab. But whenever I tried to choose radio button the and moveon to choose another radio button then the option chooses from previous button will deselect. Please help me

[@andreazanchetta2476]

Thanks for the turoria. I have an issue. When I try to run the App, I receive the error: Error in shinytheme("united") : united is not an available theme. Valid themes are: . How can I solve please? Thanks in advance

[@DataProfessor]

Hi, not sure why united theme is not working. Does other theme work? More info here rstudio.github.io/shinythemes/

[@alexandrodisla6285]

Well I find my spot!!!

[@DataProfessor]

Glad to have you here 👍

[@shirleialexandrinodosanjos4538]

Thanks for sharing this knowledge. I Would like to now if It is possible to execute this code in google collab?

[@DataProfessor]

Hi, the website will run if from a script file such as ui.R and server.R but will not work as a notebook file

[@MohammadMohammad-mj6pc]

thanks for this education. I have a question. I use RTL language and want to use it in shiny app rtl font? do you have any idea or link to help me?

[@DM-py7pj]

I am getting a timeout on codes.bio/osfp/ so cannot get to the page you display at 6:44. Is this a regional thing? UK here. Other than that, awesome content with excellent teaching style. Thank you.

[@DataProfessor]

The server is hosted in the US, it might be a brief outage, could you try again

[@DM-py7pj]

@@DataProfessor Thanks. Currently still saying codes.bio took too long to respond.

[@DataProfessor]

Very sorry, I’ve checked and found that the server was indeed not functioning properly, thus I’ve rebooted it and now it is loading normally now. Could you try again?

[@DM-py7pj]

@@DataProfessor Working perfectly. Thank you so much :-)

[@sridharsri8419]

can u pls make a chart of all keys which were gonna use in R language, so we can use it as of our needs

[@rondamon4408]

You said that H4 is the smallest one. Doesn't it have H5 and h6?

[@MrAndreDan]

hi professor, I'm developing an EEG, I'll use an arduino to get the inputs and R to processing and graphs. Can I create a web application for the user just click in "Start the EEG"? After putting the electrodes, he will click in this button and then the proccess began. This is possible? Sorry for my english, and thank you!

[@DataProfessor]

Hi Andre, that’s a great project! I think it is entirely possible given that you will need to install an OS on your arduino and also R (and associated packages) then have the R shiny app run locally on the arduino where it will access the data generated from the electrodes. Hopefully you can share with us if this works!

[@MrAndreDan]

@@DataProfessor thank you, I'll let you know if it works

[@ATPForLearning]

How can I use R shiny for doing feedback analysis or Sentimental analysis?

[@morzen5894]

How on earth do you trouble shoot or debug when I use shiny app I can do all the prints or logs I want neither appear in the R console or the browser console ???

[@sid321axn]

Can you please upload one video instruction how to build machine learning based web app in shiny R

[@quintoncarroll4828]

I start my PhD studies in August 2021. Can I use a Shiny to develop an interactive survey that performs the data analysis in real time? Can results be hidden from user until you want them released?

[@Carlos-um3xg]

ist possible, to use angular to frontend?? :-)

[@eliasamuel6946]

Can we integrate the API in shiny framework?

[@smudge321]

As a freser can you recommand what type of project can i do to mention it in resume ,can i put this project in the resume.

[@DataProfessor]

This could definitely be used as a starting point for crafting your own project, I'd recommend to build on top of it and see if you can use data that interests you and solves your real life problem (helps to show the impact that your project has).

[@mcnamarachiwaye6359]

Thank you professor. Maybe students may get stuck and they may want to remove end line commas.Potential subscriber might think you are lying and n the end they dont subscribe. Otherwise a good introduction. Error in tag("form", list(...)) : argument is missing, with no default.

[@DataProfessor]

Hi Mcnamara, thanks for your comment. Errors can arise from many factors: a missing quotation or comma, misspelling of variable names, misspelled case-sensitive characters of variable or function names, the libraries installed on the computer, the version of the installed library, the version of the R 32-bit or 64-bit, the version of R 3.x.x, the operating system of the computer, the presence or absence of operating system dependencies that some R libraries, etc. Aside from the error message, there are other information prior to the error. Also need to check the code for any syntax error. To help solve your error, can you also share your code by pasting it to a public Gist at gist.github.com/ (a GitHub service where you can publicly share codes). Finally share the URL here.

[@mcnamarachiwaye6359]

@@DataProfessor thank you proffessor. i need to submit an shiny assignment on 30 April. if i follow your vedio do you guarantee me that i will get good marks for DATA VISUALISATION course in Zimbabwe Africa

[@mcnamarachiwaye6359]

thats why i visited your channel

[@DataProfessor]

I’ve made about 5 videos on Shiny. I have no control over the marks that the teacher will give you, but if you improvise and build upon what I’ve shown in the videos I can say you have a good chance of getting a good mark. I’ve already used Shiny to make production quality webserver in my work as a researcher/professor and it is published in a scientific journal, please refer to the webserver and article link here: codes.bio/osfp/ and jcheminf.biomedcentral.com/articles/10.1186/s13321-016-0185-8 Typically an article has to be refereed by 3 independent researchers who have yo arrive at the same conclusion of stringent acceptance criteria. I wish you best of luck on the assignment and let me know if you need any help. Also please post your code so I can take a look.

[@mcnamarachiwaye6359]

codes.bio/osfp/ i love this app. so i want to load all my tabpanels . my question is how do i join render them to the server. eg i want TABPANEL 1histogram, TAB PANEL 3 ABOUT APPTABPANEL2 golf, hiow do i then render these 3 given that 1 is txtouput 2 is distoutp and third one is table.output

[@姜育昇-c7j]

我喜歡!

[@pierrealjammal5483]

Could you please send the vid links and documents and code?

[@HaPham-ld1pe]

Some segments in the video are stamped not adjacent to each other

[@peterko8871]

I'd suggest to go through a very simple example from start till end, the structure of the video is not good, no clear process flow. thanks for the effort though, keep it up!

[@DataProfessor]

Thank you Peter for the feedback. I would like to improve this for future video, do you mean the process flow of this video series or only this particular video? Each video in the 5 part series are self-contained and the difficulty level of each part is progressively increased.

[@pattamalaokarnchanakorn4888]

I like th

[@ravikumar-vr6zm]

can i earn money by shiny app

[@DataProfessor]

Yes you can! You just need to pivot this to something that can be monetized. These are the tools to make it happen 😃

[@ravikumar-vr6zm]

@@DataProfessor make a video please.. I'm waiting from today

[@kareemhisham9769]

اغانى ستو انا

[@fuzzywuzzy318]

so many new code ....totally different with C,java,python..... i feel R shiny need to recite all the code meaning......

[@DataProfessor]

Thanks for the feedback 😊

[@fuzzywuzzy318]

@@DataProfessor No thanks, i am a chinese student studing in singapore management university ,and r is one of my course ,your video is really helpful to a total fresh learner

[@wexwexexort]

I can't take my eyes from the lamp that lights back of the monitor no one is using. what a waste.

[@yes.daniel]

please don't write a web app in R Shiny. please!

[@hydrilara]

Your name is harder to learn than the r programming. 😊

[@learneverything2256]

This is so incredibly helpful! Thank you! I'm going to watch the entire playlist!

[@DataProfessor]

Glad to hear that it’s helpful!