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Search - "data visualization"
- Sure! What do you need?
Oh, it’s very simple, I just want to make a static webpage that shows a clock with the real time.
- Wait, why static? Why not dynamic?
I don’t know, I guess it’ll be easier.
- Well, maybe, but that’s boring, and if that’s boring you are not going to put in time, and if you’re not going to put in time, it’s going to be harder; so it’s better to start with something harder in order to make it easier.
You know that doesn’t make sense right?
Okay, so I want to parse this date first to make the clock be universal for all the regions.
- You’re not going to do that by yourself right? You know what they say, don’t repeat yourself!
But it’s just two lines.
- Don’t reinvent the wheel!
- One component per file!
- It happens, and you’ll get lost managing your files as well. You should use Webpack or Browserify for managing your modules.
- Yes, but some people still have previous versions of ECMAScript, so it wouldn’t be compatible.
Why is it called ECMAScript then?
- It’s called both ways. Anyways, after you install Webpack to manage your modules, you still need a module and dependency manager, such as bower, or node package manager or yarn.
What does that have to do with my page?
- So you can install AngularJS.
Oh, that’s great, so if I modify one sentence on a part of the page, it will automatically refresh the other part of the page which is related to the first one and viceversa?
- Exactly! Except two way data binding is not recommended, since you don’t want child components to edit the parent components of your app.
Then why make two way data binding in the first place?
- It’s backed up by Google. You just don’t get it do you?
I have installed AngularJS now, but it seems I have to redefine something called a... directive?
- AngularJS is old now, you should start using Angular, aka Angular 2.
But it’s the same name... wtf! Only 3 minutes have passed since we started talking, how are they in Angular 2 already?
- You mean 3.
Okay, I now know Angular 6.0, and use a component based architecture using only a one way data binding, I have read and started using the Design Patterns already described to solve my problem without reinventing the wheel using libraries such as lodash and D3 for a world map visualization of my clock as well as moment to parse the dates correctly. I also used ECMAScript 6 with Babel to secure backwards compatibility.
- That’s good.
- But did you use TypeScript?37
Long rant ahead, but it's worth it.
I used to work with a professor (let's call him Dr. X) and developed a backend + acted as sysadmin for our team's research project. Two semesters ago, they wanted to revamp the front end + do some data visualization, so a girl (let's call her W) joined the team and did all that. We wanted to merge the two sites and host on azure, but due to issues and impeding conferences that require our data to be online, we kept postponing. I graduate this semester and haven't worked with the team for a while, so they have a new guy in charge of the azure server (let's call him H), and yesterday my professor sends me (let's call me M), H and W an email telling us to coordinate to have the merge up on azure in 2-3 days, max. The following convo was what I had with H:
M: Hi, if you just give me access to azure I'll be able to set everything up myself, also I'll need a db set up, and just send me the connection string.
H: Hi, we won't have dbs because that is extra costs involved since we don't have dynamic content. Also I can't give you access, instead push everything on git and set up the site on a test azure server and I will take it from there.
M: There is proprietary data on the site...
H: Oh really? I don't know what's on it.
<and yet he knows we have no dynamic data>
M: Fine, I'll load the data some other way, but I have access to all the data anyway, just talk to Dr. X and you'll see you can give me access. Delete my access after if you want.
H: No, just do what I said: git then upload to test azure account.
Fine, he's a complete tool, but I like Dr. X, so I message W and tell her we have to merge, she tells me that it's not that easy to set it up on github as she's using wordpress. She sends me instructions on what to do, and, lo and behold, there's a db in her solution. Ok, I go back to talking to H:
M: W is using a db. Talk to her so we can figure out whether we need a database or not.
H: We can't use a database because we want to decrease costs.
M: Yes I know that, so talk to her because that probably means she has to re-do some stuff, which might take some time. Also there might be dynamic content in what she's doing.
H: This is your project, you talk to her.
<I'm starting to get mad right now>
M: I don't know what they had her do apart from how it interfaces with what I've done.
H: We still can't have databases.
M: Listen, I don't do wordpress, and I'm not gonna mess with it, you talk to her
H: I won't do any development
<So you won't do any dev, but you won't give me access to do it either?>
M: Man, the bottleneck isn't the merging right now, it's the fact that W needs a db
H: I know, so talk to her
M: THE RESTRICTION TO NOT HAVE DATABASES IS NOT MINE, IT'S YOURS, YOU TALK TO HER. I can't evaluate whether it's a reasonable enough reason or not since I don't know the requirements or what they're willing to spend.
H: It's your project.
M: Then give me fucking access to azure and I'll handle it, you know you'll have to set up wordpress again regardless whether we set it up the first time.
H: Man just do your job.
At this point I lost it. WHAT A FUCKING TOOL. He doesn't wanna do dev work, wants me to go through the trouble of setting up on a test subscription first, and doesn't want to give me access to azure. What's more, he did shit all and doesn't want to anything else. Well fuck you. I googled him, to see if he's anyone important, if he's done anything notable which is why he's being so God damn condescending. MY INTERNSHIP ALONE ECLIPSES HIS ENTIRE CV. Then what the fuck?
There's also this that happened sometime during our talk:
M: You'll have to take to Dr. Y so he'll change the DNS to point to the azure subscription instead of my server.
H: Yea don't worry, too early for that.
M: DNS propagation takes 24 hours...
H: Yea don't worry.
DNS propagation allows the entire web to know that your website is hosted on a different server so it can change where it's pointing to. We have to do this in 2-3 days. Why do work in parallel? Nah let's wait.
I went over his head and talked to the professor directly, and despite wanting to tell him that he was both drunk and high the day he hired that guy, I kept it professional. He hasn't replied yet, but this fucker's pompous attitude is just too much for me alone, so I had to share.
PS: I named his contact as Annoying Prick 4 minutes into our chat. Gonna rename him cz that seems tooooooo soft a name right now.47
Professor essentially doing a dance to show data visualisation:
“Hey pay attention! I’m trading my dignity for your education”4
Boss: we are going to build a blockchain. ( he is smiling proudly)
Me: we are doing data visualization boss!!! Why we need the blockchain?!?!?
Boss: I am disappointed in you!!! You don’t read any Tech news or follow the market trends? BlockChain is tending nowadays... ( showing angry emoji using his face)
Me: it is not related to our work by anything!!! What we will visualize? A success of the transition? The amount of it? A visualization of the nodes?
Boss: (shouting) there are a lot of opportunities using the BlockChain in our days, and it is critical to our business...
Me: boss, there many opportunities using the ******* BlockChain, and I am leaving this company by the end of the month... find a ******* BlockChain developer to visualize the ******* process...
Boss: ........ (silence)
Me: .... (already resigned)7
So one year ago, when I was second year in college and first year doing coding, I took this fun math class called topics in data science, don't ask why it's a math class.
Anyway for this class we needed to do a final project. At the time I teamed up with a freshman, junior and a senior. We talked about our project ideas I was having random thoughts, one of them is to look at one of the myths of wikipedia: if you keep clicking on the first link in the main paragraph, and not the prounounciation, eventually you will get to philosophy page.
The team thought it was a good idea and s o we started working.
The process is hard since noe of us knew web scraping at the time, and the senior and the junior? They basically didn't do shit so it's me and the freshman.
At the end, we had 20000 page links and tested their path to philosophy. The attached picture is a visualization of the project, and every node is a page name and every line means the page is connected.
This is the first open project and the first python project that I have ever done. Idk if it is something good enough that I can out on my resume, but definitely proud of this.
PS: if you recognize the picture, you probably know me. If you were the senior or the junior in the team, I'm not sorry for saying you didn't do shit cuz that's the truth. If you were the freshman, I am very happy to have you as a teamate.2
A coworker of mine was asked to make a utility C# app to help with our internal testing. The idea was that the app would collect data and display the results.
He decided that it was very important that the app have a command line interface. He's spent far more time building the app from scratch for the command line than he would have if he'd used C#'s built-in GUI utilities.
Today was our demo day and he shows an internal command-line app in 2017 built in C#. I asked about the GUI and he said that the command line functionality was more important. I suggested that it was maybe less user-friendly and he proceeded to explain to me how "non-technical" people might prefer a GUI, but clearly any serious developer would just want a command line app.
I feel like, in one fell swoop, he trivialized my suggestion, didn't address any of the data visualization needs, and suggested I wasn't a "real developer". Am I right to feel a little outraged by this?5
So I'm a BI consultant, been doing this for about 6 years now, and I'm pretty good at the data stuffs. Now I had to complete a project for a client where we call a web service and it had to be done in .NET. I wrote a console app in C# that called the WS, dumped the data then a stored proc processed the staging tables into final tables that our visualization tool can consume.
It works, it's done.
Mind you I'm not a pure .NET developer.
And now that it's completed and working this fucking .NET dude that works for my client is basically giving me an attitude talking about "why wasn't it done as a Windows service? Blah, blah" Like WTF!!??? I get that he's the C# BSD but like chill bruh!!
It's annoying as fuck having to work on projects that are not your area of EXPERTISE and then be ridiculed by other elitist assholes about it.
Doesn't happen much, but fuck it's something I hate about dev. FYI, if it was the opposite I would just be asking questions for understanding, not being a sarcastic prick.
if you're someone who grades code, fuck you, you probably suck. Turned in a final project for this gis software construction class as a part of my master's degree (this class was fuck all easy, I had two weeks for each project, each of them took me two days). We had to pick the last project, so I submitted final project proposal that performs a two-sample KS test on some point data. Not complex, but it sounds fancy, project accepted. Easy money.
I write the thing and finish it, it works, but it doesn't have a visualization and that makes the results seem pretty lame, even though its fully functional. SO I GO OUT OF MY FUCKING WAY to add a matplotlib chart of the distribution. To do that, at the very bottom of the workflow, I define a function to chart it out because it made the code way more readable. Reminder, I didn't have to do this, it was extra work to make my code more functional.
Then, this motherfucker takes points off because I didn't define the function at the very beginning of the code... THE FUCK, DUDE? But, noobrants, it's "considered best prac--" nope, fuck you, okay? This class was so shit, not once was code style addressed in a lesson or put on any rubric - they didn't give a shit what it looked like - in fact, the whole class only used arcpy (and the csv mod once), they didn't teach us shit about anything except how to write geoprocessing scripts (in other words, how to read arcGIS docs about arcpy) and encouraged us to write in fucking pythonwin. And now, when the class is fucking over, you decide to just randomly toss this shit in, like it was a specific expectation this whole time? AND you do this when someone has gone out of their way to add functionality? Why punish someone who does extra work because that extra work isn't perfect? Literally, my grade would have been better without the visualization.
I'm not even mad at my grade - it was fine - I just hate inconsistency in grading practices and the random raising and lowering of expectations depending on how some grader's coffee tasted that morning. I also hate punishing people for doing more - it's this kind of shit that makes people A) wanna rip their eyeballs out, and B) never do anything more than the basic minimum expectation to avoid extra unwanted attention. If you want your coders to step up and actually put work in to make things the best they can be, yell at a grader to reward extra work and not punish it.4
I am Graduate student of applied computer science. I am required to select my electives. Now i have to decide between Machine Learning (ML) and Data Visualization. My problem is Machine Learning is very theoretical subject and I have no background in ML in my undergrad. In data visualization, the course is more focused towards D3.js. Due to lack of basic knowledge i am having second thoughts of taking ML. However, this course will be offered in next Fall term. And i am also studying from Coursera to build my background till that time.
I know there is no question here but I need a second opinion from someone experienced. Also, please suggest any other resource that I should look into to build my background in ML.3
Every single time I present a tool for data visualization:
"Oh that's great! Have you considered integrating it with service XYZ? It would be great to see the data from XYZ alongside this."
The answer I would like to give:
"No, you retard! Nobody gives a fuck about your crappy service! Nobody uses it, not even your own team! This is the 10th service that I've been asked to integrate and I don't have time to dig into the details of yet-another-shit. If you have time to waste, please go ahead but don't bother me."2
i was learning neural networks, started with keras and was on the first tutorial where they started by importing pandas
so i switched to learning data analysis using pandas in Python where they started by importing matplotlib and i realized data visualization is also important and now I'm reading matplotlib docs...🙄11
Today I had a full-day job interview for a junior data scientist position.
First I met the team which was only like half of everyone because apparently everyone was gone on Fridays. However the few there were really nice.
First task is to do some basic data analysis stuff even though I already spent a week on the coding challenge and sent them all my code/tasks. I log into my machine and create a new virtual environment but can't for the life of me figure out how to use the command line in windows to install packages. Turns out there is some problem with their proxy and they have to log me in on that. Then I am struggling on the keyboard because it's for a language different that my mother tongue and it takes me 3x as long to so the most simple things. All my shortcuts are out the window. Haven't a hard time typing parentheses and brackets. Start freaking out and have a panic attack mid task. I'm sweating bullets. I didn't even make it to the simple visualization tasks much less the models at the end. Time gets called and we all go to lunch and I'm freaking out on the inside the entire time. Angry at myself because I know I am better and just couldn't think.
After lunch I present my code and results from a coding challenge I did weeks prior. People from other teams get invited and I end up getting grilled for 2 hours by 15 people. Questions are flying in from all sides. They ask me almost everything I know about machine learning and some more. Under stress I forgot the name of the optimizer I used and couldn't answer some easy stuff because my mind was racing.
Right now I am on the train home and my body physically hurts. I am disappointed with myself and wish I could have shown up better. Never really froze up like this before.2
Today I realized that compilers are children, and must be treated as such. Generally, you might tend to expect a language to follow the same rules consistently, but oh how wrong you are, my sweet summer child.
I have a framework that I've been reusing across several personal Unity3d projects for a while, and all was well. This week, I was tasked with creating a PoC that combines a web app with Unity WebGL for data visualization. My framework has a ton of useful stuff helped me create the PoC very quickly, and all was well.
Come 3 days ago and there's one last piece that isn't working for some reason. It almost appears that this one bit of code isn't executing at all. Today, after countless hours of swearing at the computer and banging my head against the wall, I realized that the WebGL compiler has a different implementation for the method that checks assignability of types. An implementation that has different rules than everything else. An implementation that has no documentation about this discrepancy anywhere. I have no words.
tl;dr: The language changed the rules on me. Fuck me right?1
If you want to add stunning visualization to your data you might want to try http://www.glimpsedash.com developed by @trostik.
I have been using it the past few days and it has Great potential. You can easily visualize data and present on any device. I am using a large flat screen, laptop and phone in my testing.
The API is easy to pass data to. Today I created multiple events and displayed my data using the included pins and a few of my own.
Interestingly when I started testing Saturday I could only pass data using latitude and longitude. That was fine but I also have data points I wanted to pass by IP address. I went back in the system later in the day and @trostik had added this functionality! Maybe the system read my mind. So, I have now been passing latitude-longitude AND IP's to my dashboard map.
Looking forward to continuing to work with http://www.glimpsedash.com and hearing other dev opinions.
Random thoughts on more out of the box tools/environments.
Some time ago I had shown one of my coworkers about Pharo and he quickly got the main idea behind it but mentioned how he didn't like the idea of leaving behind his text editor to deal with source code.
Some time last week I showed the dude some cool 3d animations you can do with Pharo while simultaneously manipulating the code to change them in real time. Now that caught his attention particularly and he decided he wanted to know more about the language but in particular the benefits of fucking around with an image based environment rather than a file based.
Both of us reached the conclusion that image based makes file based dev enviroments seem quaint in comparison, but estimated that it was nothing more than a sentiment rather than a fact.
We then considered what could be the advantage/disadvantages of such environments but I couldn't come up with anything other than the system not having something like Vim or VS Code or whatever which people love, but that it makes up for it with some of the craziest IDE tools I had ever seen. Plugins in this case act like source code repos that you can download and activate into your workflow in what feels something similar to VS Code being extended via plugins written in JS, and since the GUI is maleable as it is(because everything is basically just subsets of morp h windows) then extending functionality becomes so intuitive that its funny
Whereas with Emacs(for example) you have to really grind your gears with Elisp or Vimscript in Vim etc etc, with Pharo your plugin system is basicall you just adding classes that will convert your OS looking IDE into something else.
Because of how light the vm machine is, portability is a non issue, and passing pharo programs arround is not like installing Java in which you need the JVM.
Source code versioning, very important, already integrated into every live environment and can be extended to do pushes through simple key bindings with no hassle.
I dunno, I just feel that the tool is too good to be true. I keep trying to push limits into it but thus far I have found: data visualization and image modeling to work fine, web development with Teapot to be a cakewalk and work fine, therr are even packages for Arduino development.
I think its biggest con would be the image based system, but would really need to look into how this is bad by any reason other than "aww man I want vim!" since apparently some psychos already made Emacs and VS code packages for interfacing with Pharo source trees.
Embedded is certainly out of the question for any real project since its garbage collected and not the most performant cookie in the jar.
For Data science I can see some future, seems just as intuitive and interesting as a Jupyter Notebook actually, but the process can't and will not be the same since I still don't know of a way to save playground snippets unless you literally create classes for it, in which case every model you build gets saved inside of an object, sounds possible but, strange since it is not a the most common workflow in jupyter.
Some of the environment is sometimes glitchy, but it does have continuos development and have not found many hassles.
There is a biased factor from my side: I seem to be wired to understand the syntax and simple object model better than in other languages. To me this feels natural as if I was just writing ideas rather than code, mostly because I feel that there really ain't much in terms of syntax, the language gets out of my way and the IDE feels like the most intuitive environment in the world to me. I can see why some people would find it REALLY weird of counterintuitive tho.
Guess I really am a simple dude.
I did some cool projects with node JS.
We had this project where we had several embedded sensor box components communicating via a node js server backend with some fancy visualization.
And one of the guys was a total idiot. His part was to write some embedded code for a sensor box. He also wrote some data receiver in C# which was a totally over patterned mess and nothing worked.
For some unknown reason this guy made me his arch nemesis. He also never liked the team. While the rest of the team actually was super cool.
So in the final presentation out of a sudden in his part of the presentation (He had a Mac and had his slides done in some nasty whatever incompatible format) he pulled out some slides with code metrics. The best part was where he compared the embedded C code with my js code in terms of cyclomatic complexity. I will never forget this moment. Some nice bar chart.
Good I loved that guy for this moment.
And that made my year!
Does anyone really use Processing for Data Visualization? It's the fucking worst tool ever for visualizing data.
They barely have any forums either.5
I'm back at it again, after a period of peace and rest. I currently thinking it was just the burnout I faced as a result of remote team activities revolving around an MVP I needed to release for a startup project.
*shrugs* One has to do what has to be done.1
Anyone got any good resources or advise regarding data visualization and finding relations between data programmaticly?6
Glad to share my first technical blog which covers up most of the basics of this beautiful python library called matplotlib please do give it a read.