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• Automatically analyze excel files

  - by dole doug

  I have to replicate a manual generation of a large number of excel files. I started to manually track the relations between cells ( files, formulas, etc). I also had a talk with the person which generates those files. For now I have a general understanding about how the excel files are generated, but "devil is in the details". I assume that I can write a script which will generate the hierarchy between cells and files, but this might require the same effort as manually noticing the relations. Also, I'm afraid that I'm not too experienced and my app is more prone to error approach than a manual analyze. How to handle this problem? Do you know about an open source project which analyze the excel files in a recursive mode following the formulas ?

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• Island Generation Library

  - by thatguy

  Can anyone recommend a tile map generator (written in Java is a plus), where one can control some land types? For example: islands, large continents, singe large continent, archipelago, etc. I've been reading through many posts on the subject, it almost seems like many are just rolling their own. Before creating my own, I'm wondering if there's already an open source implementation that I might not be finding. If not, it seems like using Perlin Noise is a popular choice. Some articles I've been reading: http://simblob.blogspot.com/2010/01/simple-map-generation.html Generate islands/continents with simplex noise https://sites.google.com/site/minecraftlandgenerator/

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• Convert Docx or Odt to Pdf

  - by luxifer

  Hi there, I need to find a way to convert docx or odt files to pdf on a linux web server. Therefore I'm not willing to install openoffice.org for obvious reasons. I've tried Google but it failed for me, so I'm here :-) I can't imagine there's no other solution to this problem than to install a huge chunk of binaries given that a) there are (or at least should be) lot's of packages which can read docx or at least odt and b) there are as many packages which can write pdf files What am I missing here? scratching head Regards, luxifer ps edit: I don't want to use a web service - neither free or paid edit 2: at this point it would also help to convert the docx back to doc so I could use wvpdf to generate the pdf... edit 3: of course it would also help if i could do search and replace on a doc file in the first place; or xps for that matter

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• Recover personal PGP key from old home

  - by Oli

  Many lives ago, I created a GPG key to sign the Ubuntu Code of Conduct on Launchpad. I haven't really used it since. Some time later, I backed up my home and started fresh. That was all back in 2009. I still have the backup but now I'm starting to play around with Quickly and upload things to Launchpad, I could really do with having my PGP key back. I don't really know how the key is organised or where it's stored, but I'd like to recover my old key rather than generate a new one. Any idea where to start?

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• Opinions on logging in multiprocess applications

  - by chkorn

  We have written an application that spawns at least 9 parallel processes. All processes generate a lot of logging information. Currently we are using Pythons QueueHandler to consolidate all logs into one file. Unfortunately this sometimes results in very messy files which make them hard to read (e.g. Track what exactly is going on in one thread). Do you think it is a viable option to separate all messages into dedicated files, or is this going to make things even more messy due to the high number of files? What are your general experiences when writing log files for multiprocessed/multithreaded applications?

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• How can we stop GitHub from emailing too many people too much? [migrated]

  - by Michael Bishop

  I recently joined a research team that uses R and Git/GitHub. The team includes 4 full-time R programmers and 10 social scientists who only run simple analyses. I was told by one of the more experienced programmers on the project that they haven't found a way to use many of GitHub's tools for collaboration (bug reports, to-do lists, code comments, etc.) because they generate emails to everyone who is a contributor to the repo every time. This is incredibly puzzling to me, so I'd love to hear from someone that there are ways to adjust the email settings. I'd expect there would be multiple ways, so that individuals could opt-in or opt-out of certain emails, and also so contributors could explicitly choose whether certain people get certain emails or not. Is it possible to adjust these settings?

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• Brief explanation for executables in a GNU/Clang Toolchain?

  - by ZhangChn

  I roughly understand that cc, ld and other parts are called in a certain sequence according to schemes like Makefiles etc. Some of those commands are used to generate those configs and Makefiles. And some other tools are used to deal with libraries. But what are other parts used for? How are they called in this process? Which tool would use various parser generators? Which part is optional? Why? Is there a brief summary get these explained on how the tools in a GNU or LLVM/Clang toolchain are organised and called in a C/C++ project building? Thanks in advance. EDIT: Here is a list of executables for Clang/LLVM on Mac OS X: ar clang dsymutil gperf libtool nmedit rpcgen unwinddump as clang++ dwarfdump gprof lorder otool segedit vgrind asa cmpdylib dyldinfo indent m4 pagestuff size what bison codesign_allocate flex install_name_tool mig ranlib strip yacc c++ ctags flex++ ld mkdep rebase unifdef cc ctf_insert gm4 lex nm redo_prebinding unifdefall

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• Welcome to the BI & Analytics Pulse Blog

  - by jacqueline.coolidge(at)oracle.com

  In this blog, we'll be taking the pulse of the BI and Analytics market.   We get to meet people who involved in every aspect of the market --  customers that push the envelope and use BI in innovative ways, software developers, product managers, and sales teams in the field.  This sparks lots of ideas.  We'll share our experience and ideas and hope to generate discussion on topics that reflect what's going on in the market and where it will go next.  First topics will include, self-service BI and in memory analytics.   Let us know what you think is interesting. 

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• Is switch-case over enumeration bad practice?

  - by Puckl

  I have an enumeration with the commands Play, Stop and Pause for a media player. In two classes I do a switch-case over the received commands. The player runs in a different thread and I deliver the commands in a command queue to the thread. If I generate class diagrams the enumeration has dependencies all over the place. Is there a nicer way to deal with the commands? If I would change/extend the enumeration, I would have to change several classes. (Its not super important to keep the player extensible, but I try to write nice software.)

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• Storing Attendance Data in database

  - by Ali Abbas

  So i have to store daily attendance of employees of my organisation from my application . The part where I need some help is, the efficient way to store attendance data. After some research and brain storming I came up with some approaches . Could you point me out which one is the best and any unobvious ill effects of the mentioned approaches. The approaches are as follows Create a single table for whole organisation and store empid,date,presentstatus as a row for every employee everyday. Create a single table for whole organisation and store a single row for each day with a comma delimited string of empids which are absent. I will generate the string on my application. Create different tables for each department and follow the 1 method. Please share your views and do mention any other good methods

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• Why is my Simplex Noise appearing in four columns?

  - by Joe the Person

  I'm trying to make a Texture out of Simplex noise, but it keeps appearing like this regardless of how big or small scale is: The following code is used to produce the image's color date: private Color[,] GetSimplex() { Color[,] colors = new Color[800, 600]; float scale = colors.GetLength(0); for (int x = 0; x < 800; x++) { for (int y = 0; y < 600; y++) { byte noise = (byte)(Noise.Generate(x / scale, y / scale) * 255); colors[x, y] = new Color(noise, noise, noise); } } return colors; }

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• OWB 11gR2 &ndash; Parallel DML and Query

  - by David Allan

  A quick post illustrating conventional (non direct path) parallel inserts and query using OWB following on from some recent posts from Jean-Pierre and Randolf on this topic. The mapping configuration properties is where you can define these hints in OWB, taking JP’s simplistic illustration, the parallel query hints in OWB are defined on the ‘Extraction hint’ property for the source, and the parallel DML hints are defined on the ‘Loading hint’ property on the target table operator. If we then generate the code you can see the intermediate code generated below… Finally…remember the parallel enabled session for this all to fly… Anyway, hope this helps join a few dots….

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• BizTalk 2009 - The Community ODBC Adapter: Send Port

  - by Stuart Brierley

  I have previously talked about the installation of the Community ODBC adapter and also using the ODBC adapter to generate schemas and laterly the creation of a receive port using the ODBC Adapter.  But what about creating a send port? Select to add a new Send Port, select the ODBC Adapter and click configure. Clicking Connection string will open the DataSource window. Choose one of your system datasources and press OK. This will now update the Transport properties.  Select okay. All that remains is to set the standard send port properties and your ODBC send port is now ready.

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• Message Buffers in cloud

  - by kaleidoscope

  Message Buffer is WCF queue in the cloud (although currently it does not provide all features of WCF queue). With on-premise WCF, you can take advantage of MSMQ, so that a message is sent to MSMQ by one endpoint, and another endpoint can get the message in a later time. The message is usually a SOAP message so that you can generate a client proxy and invoke the service operations just as invoking a normal WCF operation. Message Buffer is similar, but it also provides a REST API for you to work with the messages. Use it when you need a reliable WCF service. Message buffers can be consumed by non-azure components, "Message  buffers are accessible to applications using HTTP and do not require the Windows Azure platform AppFabric SDK"              How to: Configure an AppFabric Service Bus Message Buffer :    please find below link for more details: http://msdn.microsoft.com/en-us/library/ee794877.aspx http://msdn.microsoft.com/en-us/library/ee794877.aspx   Chandraprakash, S

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• Can HTML injection be a security issue?

  - by tkbx

  I recently came across a website that generates a random adjective, surrounded by a prefix and suffix entered by the user. For example, if the user enters "123" for prefix, and "789" for suffix, it might generate "123Productive789". I've been screwing around with it, and I thought I might try something out: I entered this into the prefix field: <a href="javascript:window.close();">Click</a><hr /> And, sure enough, I was given the link, then an <hr>, then a random adjective. What I'm wondering is, could this be dangerous? There must be many more websites out there that have this issue, are all of them vulnerable to some sort of php injection?

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• Random number generation algorithm for human brains?

  - by Magnus Wolffelt

  Are you aware of, or have you devised, any practical, simple-to-learn "in-head" algorithms that let humans generate (somewhat "true") random numbers? By "in-head" I mean.. preferrably without any external tools or devices. Also, a high output (many random numbers per minute) is desirable. Asked this on SO but it didn't get much interest. Maybe this is better suited for programmers.. :) I'm genuinely curious about anything that people might have come up with on this problem.

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• There is any reason for which a delete method/field/function refactoring doesn't exist?

  - by raisercostin

  An operation in an interface is obsolete so I decided to delete it. It seems that there is no automatic support for such a "refactoring". For me is a refactoring operation since the behavior of the code will be preserved since nobody(tests, client apis) will notice that the operation was removed. In eclipse, in java code, on an method in an interface I have the following options: rename, move, change method signature, inline, extract interface, extract superclass, use supertype when possible, pull up, push down, introduce parameter objet, introduce indirection, generate declared type. There is any reason for which a delete method/field/function refactoring doesn't exist?

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• SEO Implications of blog on site versus offsite?

  - by Kelli Davis

  I recently added a blog to one of our company's websites, and was confident that this increase in content on the site would have only positive SEO results. My boss, however, feels that we should have instead located the blog off-site, on a blogging platform such as Wordpress, Typepad, etc., in order to generate a backlink (assuming we'd link from blogging platform back to website.) While I know that backlinks are important for SEO, isn't content creation equally, if not more, important? Granted, I'd be creating content either way, but I figured we'd get more site traffic by having the blog located on our site versus a separate blogging platform. Am I incorrect in my priorities here? Boss's TOP priority is increasing the ranking of our website, so maybe a backlink would be better...? If we do need to relocate the blog to an off-site platform, is there a blogging platform that is more conducive to SEO than others? Is there a platform from which backlinks would be more valuable than others?

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• The First Microsoft Dynamics NAV Builds on TFS 2010 Server

  - by ssmantha

  We are now successfully, able build Dynamics NAV solutions using the TFS Build workflow mechanisms. Lots of test builds were made, the builds can restore the NAV Database and start from a fresh solution, take latest of the NAV objects and then import it to Navision and call the compile method. The workflow is also able to generate FOB files as output which can be directly shipped to the customers. I think this is the First in the world implementation of the TFS build concepts in conjunction with NAV. I think this is a time to change the thinking caps and try to approach ERP development and include the practises of ALM into ERP Product Development.

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• What is a business problem?

  - by Juha Untinen

  Can you give an example or two of what a business problem is? I hear this word thrown around a lot, but even after searching, I cannot find a clear answer. Especially when it comes to software development. Are any of these classified as a business problem? Convert invoice from format A to format B Send data from Company A database to Company B database Create a program for time reporting Make the financial software retrieve data faster Generate a weekly data transfer volume statistic Or is a business problem something else?

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• How to implement a safe password history

  - by Lorenzo

  Passwords shouldn't be stored in plain text for obvious security reasons: you have to store hashes, and you should also generate the hash carefully to avoid rainbow table attacks. However, usually you have the requirement to store the last n passwords and to enforce minimal complexity and minimal change between the different passwords (to prevent the user from using a sequence like Password_1, Password_2, ..., Password_n). This would be trivial with plain text passwords, but how can you do that by storing only hashes? In other words: how it is possible to implement a safe password history mechanism?

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• Creating Google sitemap.xml , is it okay for the images to be wrapped in url tags?

  - by AzizAG

  I'm using a tool to generate the sitemap.xml file for me, it started to crawl my website, got the pages and all images, but when exporting it, I review the xml(to make sure nothing is wrong) and I noticed that the images in my website are wrapped in url tags(I think it should be in image tags). See this: <url><loc>http://mywebsite.com/images/12.jpg</loc><lastmod>2012-05-23T13:39:02+00:00</lastmod><changefreq>weekly</changefreq><priority>0.50</priority></url> Shouldn't it be wrapped in image tag?(just like videos wrapped in video tag) Thanks.

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• Sarg Daily Report not generated

  - by Suleman

  Ubuntu 12.04 LTS Squid 3 Sarg 2.3.2 following is my crontab configuration # SHELL=/bin/sh PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin m h dom mon dow user command 25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) 47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly ) 52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly ) # this does not generate daily html report.

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• Acceptable GC frequency for a SlimDX/Windows/.NET game?

  - by Rei Miyasaka

  I understand that the Windows GC is much better than the Xbox/WP7 GC, being that it's generational and multithreaded -- so I don't need to worry quite as much about avoiding memory allocation. SlimDX even has some unavoidable functions that generate some amount of garbage (specifically, MapSubresource creates DataBoxes), yet people don't seem to be too upset about it. I'd like to use some functional paradigms to write my code too, which also means creating objects like closures and monads. I know premature optimization isn't a good thing, but are there rules of thumb or metrics that I can follow to know whether I need to cut down on allocations? Is, say, one gen 0 GC per frame too much? One thing that has me stumped is object promotions. Gen 0 GCs will supposedly finish within a millisecond or two, but if I'm understanding correctly, it's the gen 1 and 2 promotions that start to hurt. I'm not too sure how I can predict/prevent these.

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• 2 min video about the SQL_Compare

  - by CatherineRussell

  It is nice to start blogging again! I am working on new project in a small company now. We do not have a full time database admin. I have to cover multiple roles: getting requirements, writing docs and creating diagrams, designing app, writing code, testing and DBA role. I am not a DBA. But, I have to do day to day database changes: adding new new columns and tables. Check out 2 min video about the SQL_Compare. This tool saves time by automatically comparing and synchronizing database schemas; eliminate mistakes migrating database changes from dev, to test, to production; speed up the deployment of new database schema updates; generate T-SQL scripts to update one database to match the schema of another; find and fix errors caused by differences between databases;  keeps an accurate history of all previous database records.  http://www.red-gate.com/products/SQL_Compare/index.htm

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