How do you correct repetitive typing mistakes? - keyboard

I find myself making repetitive mistakes typing keywords and sentences in my code comments. I notice its getting worse since my fingers just keep "practicing" incorrect words.
Is there any solution to this? Like a typing tutor designed to help correct repetitive mistakes?

The only way to correct this is to retrain your muscle memory. If it's important enough to take the time, the only way to retrain muscle memory is repetition.
For example, I tend to spell the word "the" as "teh" because of the same scenario you're asking about. To retrain the memory I would just spell the word over and over, starting slowly, striving for 100% accuracy, and increasing the speed. It's the same technique I use to get better at Guitar Hero.

Try a different keyboard layout. That way you start from scratch and completely retrain your fingers. Done properly you should be able to type just as fast as you could with qwerty in a few weeks. For example Dvorak.
</shameless promotion of dvorak>

If this were SMBC, the alt-text drawing thingy would be a giraffe hooker fluttering her eyelashes.
Try texter from one of LH's editors.

Maybe a book? Mastering Computer Typing: A Painless Course for Beginners and Professionals I hadn't read that, but in amazon has good reviews

One of the best websites to avoid repetitive mistakes is http://www.keybr.com/
It will actually keep track of the letters with which you are making more mistakes and generates typing lessons accordingly.

I would recommend practice on TouchTyping.guru - you can choose there the test with most popular words, so you'll quickly improve your general performance - making a mistake will make this app to generate next words with the letter you were wrong with.
And if you have problems with given letters you can try learning there putting restriction to the number of letters used to form the words. It puts focus on the last letter you choose, and they are also ordered by frequency of occurence in given language.

Related

How to compare spoken audio against reference recording - language learning

I am looking for a way to compare a user submitted audio recording against a reference recording for comparison in order to give someone a grade or percentage for language learning.
I realize that this is a very un-scientific way of doing things and is more than a gimmick than anything.
My first thoughts are some sort of audio fingerprinting, or waveform comparison.
Any ideas where I should be looking?
This is by no means a trivial problem to solve, though there is an abundance of research on the topic. Presently the most successful forms of machine learning in the speech recognition domain apply Hidden Markov Model techniques.
You may also want to take a look at existing implementations of HMM algorithms. One such library in its early stages is ghmm.
Perhaps even better and more readily applicable to your problem is HTK.
In addition to chomp's great answer, one important keyword you probably need to look up is Dynamic Time Warping (DTW). This is the wikipedia article: http://en.wikipedia.org/wiki/Dynamic_time_warping

Is learning ed worth it to boost my speed in VIM?

I've learned the basic/intermediate levels of VIM (it's too vast to list). I often find that I slip back to my old ways and start using the mouse, holding down keys to get somewhere, and doing other stupid things that could be sped up.
Would it be worth spending time to learn ed to break the habits learned from years in a point and click interface? Does using ed cultivate the right type of thinking that will transfer to VIM?
You need a change in habits which is much deeper than simply dropping the mouse. You need to understand that if you really want to learn Vim you have to do it "the hard way": read and memorize text-objects (:help text-objects) operations and movements and try using arrows/hjkl as little as possible.
At first you will be a lot slower, but don't fall back to normal movement. If you need to select a paragraph, use vap, if you need to change the text inside a pair of double quotes use ci" and so on. When these things will come out of your fingers naturally, you'll realize how worth it was the time spent to get used to them.
I learned Vim and became proficient simply by using Vim itself--a lot. I think the key is practice, practice, practice.
If you want to train yourself to avoid the mouse, unplugging it or putting out of reach might help. Learning a whole different program might be overkill, and the knowledge may not translate directly.
Read this post by Bram Moolenaar on the subject of efficient text-editing.
One of the points is that it takes conscious effort to force yourself into the habit of using Vim efficiently.
So yeah, hide the mouse while you're in Vim. And when you catch yourself doing things "the wrong way", stop and do them again correctly. It won't be long before you've learned the proper habits. And has has been suggested: Text Objects. Learn them. Get in the habit of using these and you're 1/2way to being a Vim pro. Using them is addictive; it won't take long.
I think in addition to consciously avoiding the mouse, it also helps to consciously try to force yourself to keep your fingers on home row.

One handed coding -- tablet, special keyboard, one-handed typing?

I recently broke my finger and can now only type with my right hand. This has seriously impacted my typing speed. Since I write software for a living, this is a serious problem.
I have been doing some research, but haven't found a great solution yet. Here's what I've come up with:
Wacom tablet + hand writing recognition software. Is it possible to write code with hand writing recognition software?
one handed keyboards -- I have only found expensive (> $100) keyboards. These look like they have a steep learning curve.
one handed typing instructions: http://www.aboutonehandtyping.com/manualcompare.html. Does this really work?
What do the one handed coders out there use?
If you're a two-hand touch typist, the answer is a "mirrored" layout.
Mirroring lets you begin touch-typing with one hand almost immediately. Pretty crazy how easy it is. Based on the muscle memory you already have.
If you're typing with your right hand:
Type all right-hand keys normally.
Don't type left hand keys. Instead type the same motion (but mirrored) with your right hand.
So if you want to type:
"D" -> type "K" instead.
"W" -> type "O" instead.
"S" -> type "L" instead.
Same row of keyboard, same finger, same motion. Your muscle memory can already do this... kind of like how you're unable to pat your head and rub your belly at the same time. The wires in your brain are crossing somewhere.
Software to mirror the keyboard as described above:
Hold Spacebar to mirror:
Linux - MirrorBoard
Mac - Mirror-QWERTY
Windows - AutoHotkey version of Half-QWERTY Half-Keyboard
Predictive Text; Automatic Mirroring
Mac - One-Hand Keyboard
Windows - One-Hand Keyboard
Regarding one-handed keyboards, I've tried using a frogpad and found it ok for typing text, but unusable for coding. The symbols require several consecutive key presses and I found it impossible to use shortcuts reliably. It was too easy to hit the wrong key and get it stuck in the wrong mode.
Nobody has mentioned ENTI-key aka Coffee++ Layout yet? It is exactly designed for programming with one hand (left). And unlike qwerty, it is even optimized for speed and ergonomics. I used it some years ago for a short while and I don't know if it still works on newer systems. I think I used it for writing CSS: Typing the words with left, typing all those numbers on the numpad with right.
I can not recommend pen+handwriting. I usually use a tablet PC and handwriting code is terrible. I tried it on Windows 8 and Linux with Cellwriter, and both are not bad programs, but I still switch to onscreen keyboard whenever I can. But maybe the problem is my scratchy writing :)
I also can tell from experience that learning a new layout is not as complicated as it sounds. Especially if the layout is more logical than qwerty. I use Neo Layout since 10 years and getting the hang of it went smoothly, I was able to write a blog article after an evening of training.
"But what if you have to use qwerty on another PC?" This, also, is no problem, really. My simple trick is to never look at the keyboard when using Neo, but glimpse at it when qwerty-ing.
Good luck to anyone who wants to or has to use one hand for typing!
Now, the time to heal a broken finger will be shorter than it takes to adapt to one handed coding, not to mention the time it takes afterwards to get back to two-handed coding
Also, the time it takes to learn the methods is time you could've spend on coding (read: making a living).
Knowing this, we need a quick-fix, short term solution.
First of all, A good IDE, with code completion and similar functionality will help you a lot.
Secondly, use the shortcuts of the IDE, remember, there are Shift, Altand Ctrl keys on both sides of your keyboard.
(you might want to create a cheatsheet for those shortcuts)
In addition to helping you during your time with your injury, learning the shortcuts will also improve your coding speed when you're back up again.
Now, my comments on your proposals:
Don't, simply, Don't, it'll take even more time to fix writos (typos) beacause recognition will be flaky.
That learing curve will slow you down even more.
Won't even comment on that one...
Mirrorboard
A friend of mine broke his wrist snowboarding, and he had reasonable luck using speech recognition software (Nuance Dragon Naturally Speaking). It worked quite well for email and documentation, which would solve a part of your problem.
Another colleague, Nils Klarlund of AT&T, developed a version of emacs hooked into speech recognition. He even had a home-brewed set of foot pedals for doing shift, control, etc. He used this exclusively for years (due to bad carpal tunnel syndrome).
And maybe your feet can take up some of the burden. This is part of a parallel discussion going on in this question.
And off-topic, but extremely interesting, T.V. Raman, who's been blind since the age of 14, wrote a version of emacs that works with keyboard input and audio output. There's a chapter on it in Beautiful Code. I've seen him use it, and it's completely awesome. And of course emacs is a great interface for more than just text editing.
If you anticipate that your left hand will be out of commission for a long while, and if it's worthwhile for you to learn a new layout, then there exist one-handed Dvorak layouts.
There's some information at PC Guide: Single-Handed Dvorak Alphanumeric Layouts.
There also once was software for Qwerty Half Keyboards that used the space bar as an extra shift key that reversed the keyboard.
Good luck with your injury!
We have a developer in the office that lost mobility in his right hand and probably won't gain back full use of it. He has mainly learned to type well with his left hand and kind of fill in for his right hand. Although he lets his right hand kind of peck for things. He has gained enough speed back for it not to affect his day too greatly from what i can tell.
Only thing i can think of that might let you speed up some while typing with one hand and maybe being able to get a key or two with the other hand might be to use an IDE instead of text editor if you already don't, so you can use tab completion. Kind of a lame solution if you don't like IDEs or just don't have that option in your work environment but might help out a bit.
The same thing happened to me (I destroyed my left pinky). At the time, I didn't touch type, so my only use for my pinky was left-control, left-shift, and caps-lock.
This sounds as if it just happened to you. I promise you'll quickly learn to compensate. Remember, it's quality, not speed, that counts most.
Perhaps you should seize the opportunity and read to improve yourself as a programmer. Or spend some time debugging.

Uses for Wolfram Alpha in programming

Now that Wolfram Alpha is released, I am interested in finding out if it can be used as a time-saver in daily programming.
What would you use Wolfram Alpha to do, that earlier took you more time to do manually?
I guess the "Web and Computer systems"-examples is a good start, but there must be more hidden gems that will be really practical for us programmers.
A short list of examples:
MD5-hashing / SHA-hashing
Quick lockup of unicode and HTML-codes for symbols
Color-codes
Please only include one search query per answer, then we can rate them to get the best ones to the top.
(I made this one a community-wiki, since we will be using the voting for ranking)
Note: If some of the links in the answers don't work (eg: wolfram doesn't find any results, then replace all + with spaces..
I might 'save time' by not playing around with it and doing real work instead. :)
Calculating lift coefficients of NACA profiles (example).
(I made a program for this, but it's nice to have the option to do it quick)
I probably won't use it for anything. I don't know about you, but I deal with enough black boxes on a daily basis, and I'd rather use the ones that have been tried and tested thoroughly.
This might come back to haunt me later, but it strikes me that although there might be a point to WA used in a mechanical manner, from my perspective I'm thinking it's not the hard calculable information questions which are the problem which needs to be solved, it's the soft human data which defies classification or rigid modelling. Google seem to understand this, not sure Stephen Wolfram does.
OTOH it could be that anyone can be Colin Laney now.
Someone double check me here:
The MD5 hash of "Wolfram Alpha" (no quotes) is:
882b 0be2 79eb 7e88 86cd 3dae 19c1 d267
And not:
a615 9984 9aee b7be 3091 68bc 0ab7 ?
EDIT: The hash changes every time given the same query...what kind of hash is this?
http://www14.wolframalpha.com/input/?i=MD5%22Wolfram+Alpha%22

What is the best way to learn Touch Typing? [duplicate]

This question already has answers here:
Closed 13 years ago.
Duplicate
How do I improve my Typing Skills?.**
I tried the test on http://speedtest.10-fast-fingers.com/. I reach only:
You type 337 characters per minute You
have 58 correct words and you have 1
wrong words
How can I improve my typing speed? What free resources do you know of?
Should I learn the Dvorak Keyboard?
Practice is the best way to get faster. I've found TypeRacer to be a fun and easily accessible game. Using it I quickly got from around 55 words per minute to over 70.
I removed all of the key caps from my IBM Model-M. Since I can't see the letters, I was forced to learn their positions and type without looking at the keys other than to initially orient my hands. When you're not able to take shortcuts, you tend to learn very quickly.
Mario taught me.
I also took the test and reached 371 characters with one mistake. However, for programming, I would not see this as a bad result. I'm more worried about how to use tools like Intellisense and code templates better to speed up my coding. The jedi coding demo shows that you can get much higher gains that way than by doubling your typing speed.
No need to learn Dvorak according to XKCD (and more here).
I also remember reading in The Design of Everyday Things that QWERTY actually does quite a good job or spreading the commonly used letters across your fingers and whilst the Dvorak keyboard is a little better than QWERTY the benefits aren't significant enough to justify making the change. (If I can find my copy I'll try and put up an exact quote.)
As with all things: practice makes perfect. Making posts on StackOverflow is a start :)
Unless if you want to win typing contests, a Qwerty or Azerty keyboard will work just fine.
You don't need to learn Dvorak. I can type 600+ Chars/minute on a querty pad, no problem.
The key is: Repetition, repetition, repetition.
What you're doing while you learn typing is creating new 'highways' straight form your brain's spelling center through your spine to your fingers.
Hence, a good typist will spell a word in his mind, and his fingers 'automatically' type those characters because there's a 10 lane highway from his brain to his fingers. In your case, it's a modest 3 lane highway.
Practice, practice, practice.
Good training for if you already know how to type : www.play4traffic.com
There's also loads of typing tutor programs available online, but the key is repetition and persistance.
My native language is Dutch, so in english it's not as good. I tried the test you gave:
317 points, so you achieved position 194065 of 2927935 on the ranking list
You type 476 characters per minute
You have 80 correct words and you have 4 wrong words
Why?
Why do you want to type more quickly? I seldom find that my fingers or typing speed are the issue when it comes to software development. Sure I have a fair speed, but programming is about SO much more than typing speed. I've been using a QUERTY keyboard since about 1983 so I guess repetition helps.
But learning to hold back on typing and thinking about what it is you're about to do is far more valuable IMHO.
Having said that, I would expect any developer to be able to type reasonably quickly using most fingers, or at least more than their two index fingers ;)
This game taught me a few years back.
The Typing Of The Dead
I can now type fairly quickly without looking at the keyboard. You need to learn to use the correct hand position. Then you must have good discipline and only use the correct finger to type the correct letters. I even went so far as to delete correct chars typed with the wrong finger.
It takes time, and you will almost definitely go slower before you go faster, but it is worth it.

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