@David it's 28 full days starting from launch, but we launched a couple of hours before the end of a StackExchange day (clicks over at 00:00 UTC), and we've just clicked over another one. So there will be more badges being handed out as people visit the site in this UTC day. So far there are 10 sad sacks (ahem) enthusiasts.
I just checked we were hotter than sex, but we aren't hotter than beer. And yes @rcollyer it's lunchtime. Gotta get back to it soon, though. Wednesday is always full of meetings.
If you just voted for my answer you might want to wait on that until you test it; I never did. I expect it's full of holes, but I'll try to fix them as they are brought to light.
@MrWizard What if for some reason the context is already not shown? This solution still tries to strip it from the symbol name. Admittedly it seems unlikely that this would happen.
I often wonder if it is right to tell people to do it a different way, rather than answering their direct question. This time I decided to do both. By the way, since you've joined SE I don't get to answer many Graphics questions, and I get even fewer Accepts. Being first is about my only hope. :)
@halirutan I wanted to ask about your highlight script. Is it possible to add fractional spaces to the styled code that will not interfere with copy&paste into Mathematica?
I am bothered by the appearance of the function application @ in the code blocks. In Mathematica the @ is round and has some space around it, making a line such as String@Of@Function@Names fairly readable. At least in my browser (Firefox 10) the StackExchange code block @ is narrow and has no space around it. It makes that kind of line very hard to read.
First I should ask others if they are seeing the same thing that I am and if it bothers them. (?)
I assume that if operators could be matched in their own category, it would be possible technically to change parameters such as kerning using CSS, or even add some more margin around the corresponding <span> (does it use <span>s)?
Another option would be to get the round @ sign, if in fact others are seeing what I am. I see the same thing here in chat. String@Of@Function@Names is smashed together. String@Of@Function@Names has the round @ signs. Ideally I would like String @ Of @ Function @ Names but with less space.
@MrWizard Whether it's round or not depends on the font used. It will be different from system to system I guess. It looks quite different on the Mac screenshots than here.
As a workaround you can change the fixed width font of your browser to something that has rounder @ characters if you wish.
Isn't the font set by the site? I know I could force a different one, and I know if the font is missing a substitution will have to be made, but I still assume there is a "correct" font.
I would rather not change the font, just add some space. Also, I was thinking of this being a change in the default script. Do either of you feel the need for this?
@MrWizard I think this should not be in the default script because it conflicts with the fixed-width aspect of code blocks. We couldn't align code any more.
the front end does code alignment/indenting on its own, we can't do that here
I disabled the italics because I get strange serifs with it on. I would like the italics to be simply slanted glyphs rather than quite different ones. Is there anything you know that controls this?
Let me see what I can do. I haven't monkeyed with HTML in about ten years; this could take a while.
Maybe it would be faster for you; can you give me a "bookmarklet" that will make selected text (or all page text for that matter) italic, in the same font it was before?
@Szabolcs I don't have workbench, but I use manual indenting inside Input cells and I use a tab width of 4 (default is 2). You can set it in Options Inspector > Formatting Options > Text layout options > Tab spacings. Perhaps there's something similar in workbench
/* * This is a JavaScript Scratchpad. * * Enter some JavaScript, then Right Click or choose from the Execute Menu: * 1. Run to evaluate the selected text, * 2. Inspect to bring up an Object Inspector on the result, or, * 3. Display to insert the result in a comment after the selection. */
Still looking for a way to edit page code and have it refresh...
106 answers in 1 month... that's more than 25% of your SO tally, which was over the course of an entire year (admittedly, with breaks). Sure you're not burnt out (or nearing), @MrWiz? :)
Yeah, I was worried about you too... you're equally active on meta too. 33 posts in one month... my tally on gardening is 45 after 7-8 months... (although, very different levels of activity)
@Szabolcs Do you have an example of something you're trying to plot?
@Szabolcs actually I use the workbench in large part because it does this. But it is annoying not to be able to control indentation settings as flexibly as in the mma frontend
@Rolf Your post wasn't what triggered my question. I was trying to format some code to post here in Workbench, but the indent size makes it usually too wide . Otherwise I agree that Workbench is better than the front end's auto-indenting.
@yoda Could be. I tend to do things all or nothing. One of these days I am going to return to Project Euler, which I haven't done much with since discovering StackOverflow. When I do you'll probably think I fell off a boat or something.
@Rolf Do you have any interesting Mathematica code on github? If yes, could you post a link?
@halirutan is your point that this is difficult to do so Mathematica might not have the functionality? I'm not sure I want to sit down and implement it if it doesn't ...
@Szabolcs no, not yet. I was playing with gitorious over the last days (need that for a project anyway). But probably for open-source Mathematica code I guess github is fine too.
@Rolf I don't know gitorious and I can't even use git (I use mercurial a little with bitbucket), but a huge advantage of github is that it has a built-in online editor. Anyone can easily contribute to the code without installing git and learning how to use it. I think that's very important as most Mathematica users might not even have used a version control system before.
@Szabolcs I haven't been able to coerce PlanarGraphPlot to do it... are you aware of the function? Have you had success or does it not do what the name suggests it does?
@yoda It needs explicit point coordinates as input and it just shows a Delaunay triangulation of the points. Yes, I found it (it was the first search result)
@Szabolcs I can reproduce two printouts, seperated by an error. However, changing window focus doesn't change that. Same effect each time. 8.0.0.0on Win XP x64
@Szabolcs that shouldn't give a message because the compiler knows that Print isn't compilable. No message and works correctly in 6.0.3 and 7.0.1 (don't have 5.2 installed on this computer but probably would work the same there too). Only 8.0.4 gives the message, though switching windows doesn't change that. Putting cf = Compile[{a}, Print[a], {{_Print, Null, 0}}]; cf[2] also doesn't improve the situation. I think this is a VM bug for Print.
@Szabolcs not that I am a git specialist. I just installed egit into a newer eclipse and then the Wolfram Workbench plugin. (I could not get egit installed into the original Wolfram Workbench Eclipse version)
@halirutan it's even odder than that. Try cf = Compile[{a}, Print[a]]; cf[2], then cf1 = Compile[{a}, Print[a];]; cf[2]. The result (i.e. message or not) depends on the order you defined them. Then if you define cf2 = Compile[{a}, Print[a]]; cf[2], it sometimes works or not depening on which of cf or cf1 was last evaluated. Extremely strange bug.
(Yes, those should all be cf[2]. That is, the act of compiling cf1 and cf2 has a weird effect on the result of cf[2] even if you never evaluate them.)
@RolfMertig git does a line by line diff, so if you're considering using github, it might be better to upload the .m file instead of the notebook... Otherwise, it ends up trying to diff something like Notebook[{ Cell[BoxData[{ RowBox[{ RowBox[{ ... (which can change a whole lot even if the meaningful contents in the notebook haven't changed), and you won't be able to see differences between versions (and also cause several merge conflicts if you or others branch and merge two commits)
Or at the very least, disable file outline cache, which will prevent these unnecessary boxes from showing up. Also, see this question:
Mathematica notebooks are, of course, plaintext files -- it seems reasonable to expect that they should play nice with a version-control system (git in my case, although I doubt the specific system matters). But the fact is that any .nb file is full of cache information, timestamps, and other as...
The Wolfram Science Summer School (formerly the NKS Summer School) is now accepting applications for its 10th season, to be held June 25–July 13, 2012, at Curry College in Milton, Massachusetts, United States. We are looking for highly motivated individuals who want to get involved with original research at the frontiers of science. Our participants come [...]
@RolfMertig @yoda Is there any reason not to just use the notebook diff from AuthorTools (or the version of it included and loaded by default in the NotebookTools` context)? Most Tortoise clients on Windows include a diff tool which uses this functionality.
@JM A rubber tire? Too rough and black for my taste. I liked the snake better.
@yoda Do you work with signal processing? What is the simplest way to obtain a spectrogram-like thing with Mathematica? (I just need something that'll more or less reflect what I would hear with my ears, including frequency fluctuations)
@yoda There are other reasons to use the m-file on github: the online editor that everyone can use to contribute. But if it weren't for that I think I'd prefer the notebook. I think it was @Rolf who wrote the notebook diff functionality, wasn't it? So he probably know how safe it is.
@JM I'd like something that shows changes in time Then I have this Heisenberg-uncertainty like tradeoff: if I cut it to small pieces I lose frequency resolution. If I cut it to large pieces, I lose time resoltuoin. That's how far my physicist training could take me.
@Szabolcs So, I haven't implemented one in Mathematica, but if it's not something you need right away, I can take a shot at it. Should be a fun thing to do :)
I can do the spectrogram (or atleast a rough cut version) a lot sooner than the QR code though... I'm still not sure if I was foolish for taking that on
@Heike 10 is a little too much, 9 is too short (half-page remains), but I think Eli is right... exactness is probably not enforced (probably my own ocd).
@yoda regarding that spectrogram thing: I have a spectrum with lines (pretty periodic signal). What I'd like to check if some of the frequencies are fluctuating. So I need a short enough window to see the fluctuation (in case it's fast), but a long enough one to have sufficient frequency resolution to detect it
@yoda It's an approximately periodic signal, and one period has between 1000-2000 sample points
The whole signal is between 1*10^6 - 5*10^6 sample points long
@JM I like microtype ... open tex.ac.uk/CTAN/macros/latex/contrib/microtype/microtype.pdf , go to page 4, and try turning protrusion and expansion on or off (the buttons are in the margin). The interactive demo only works in Adobe Reader ...
@yoda Most conferences I've submitted to give a maximum page range, sometimes with a minimum lower bound, but how the hell can they expect you to get an exact amount?
@yoda Already done. I wrote up a spectrogram for my grad lab class when the <censored> professor insisted on us using MatLab, and I wanted to show I could do everything he wanted in Mathematica, and get it done faster.
@rcollyer Been there. I've already pissed off professors who prefer MATLAB, C, Fortran... Been told to code up some algorithm, solved it using built-in MMA function.
@EliLansey This was the same guy who insisted on teaching us what a file extension meant!
In this case, my lab partner and I weren't sure what the MatLab code was doing under the hood, so I looked up what a spectrogram was, and coded it up in MMA. Took me a half-hour tops.
@rcollyer That's nice! Although, I probably would've used {1,-1} for the overhangs and would've added an nfft parameter. I'll still implement one of my own though soon (and I mean it!)... good practice for using options for something more serious than toy examples
@EliLansey Like I said, exact was my OCD... it used to be exact w/ 10 pt until the "suggested changes" from the man pushed it over which pissed me off :)
@yoda I wrote it five years ago, so no telling why I chose what I chose. I think I tried to match up to the matlab one as best I could, but no telling at this point. However, running it on v.8, I can't reproduce the second graphic! So, I need to play with it a bit more.
For the life of me, I can't remember why I added the rate parameter ...
just pose it as a serious problem.. even if you don't need the answer right away, it's worth answering
for example, you could phrase it as: I made this plot from a waveform recording 5 years ago, but I don't have the original wav file... is it possible to recover it (to some quality) from the image of the spectrogram
perhaps also a test example and spectrogram so that people can verify their results
I am trying to generate a graph from an adjacency list, but Mathematica doesn't want to plot my graph because of multiple edges i think.
This is my script :
Needs["GraphUtilities`"]
data = Import["adj_matrix.txt", "Table"];
data2 = Flatten[Table[{data[[i, 1]] \[UndirectedEdge] data[[i, 2]]}, {i...
I am trying to generate a graph from an adjacency list, but Mathematica doesn't want to plot my graph because of multiple edges i think.
This is my script :
Needs["GraphUtilities`"]
data = Import["adj_matrix.txt", "Table"];
data2 = Flatten[Table[{data[[i, 1]] \[UndirectedEdge] data[[i, 2]]}, {i...
