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  • Library to work with date expressions in C#?

    - by ObligatoryMoniker
    What library can I use to calculate dates based on date expressions? A date expression would be something like: "+3D" (plus three days) "-1W" (minus one week) "-2Y+2D+1M" (minus 2 years, plus one day, plus one month) Example: DateTime EstimatedArrivalDate = CalcDate("+3D", DateTime.Now); Where estimated arrival date would equal the current date plus 3 days. I have heard about JodaTime and NodaTime but I have not seen anything in them yet that does this. What should I be using to get this functionality in C#?

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  • Dynamically populating an ExtJS HTML editor

    - by sean.mcgary
    So Im using ExtJS for a job Im working and Im trying to dynamically populate the textarea associated with the HTML editor with data based on what a user selects from a combo box. From what Ive found, I can load the HTML editor with text using the defaultValue property. So if Im going to populate it after the page loads, can I give it something like a datastore or is there a method I can call to set the text?

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  • .NET Excel File Parser

    - by Russak
    So the company I'm working for is looking for a means to verify that a given .xls/.xlsx file is valid. Which means checking columns and rows and other data. He's having me evaluate GrapeCity Spread and SpreadsheetGear, but I'm wondering if anyone else has any other suggestions of external tools to check out. We don't need a means to export .xls files or anything like that, just the ability to import them and verify they are valid based on a set of criteria I create. Thanks.

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  • Tilt issue in Blackberry storm

    - by sujithRavindran
    Hi, have developed an app for BB storm while tilting the device the background image of the app screen does not matches with the screen size , i have tried with the sublayout methord public void sublayout(int width, int height) { //update scrren layout based on orientation if(Display.getOrientation()== Display.ORIENTATION_LANDSCAPE) { invalidate(); } else if(Display.getOrientation()== Display.ORIENTATION_PORTRAIT) { invalidate(); } super.sublayout(width, height); } Still not successfull can any one help to sort out this tilt issue in BB storm Thanks SujithRavindran Rapidvaluesolutions

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  • Set android datepicker date limits

    - by matt
    I am using datePicker in android to display images based on user selected dates. I need to limit said dates to certain days for instance Jan 1st 2010 to Dec 31st 2010. Simple as that i thought but no where can i find the answer on how to limit these dates. Does anyone know how to limit the dates for Android DatePicker

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  • Geocoder error when using getFromLocation

    - by Ally
    I'm trying to get the current address based on long/lat. I have the following: Geocoder geocoder = new Geocoder(this); List<Address> addresses = geocoder.getFromLocation(lat, lng, 1); However, I get an error: no feature in GLocation I don't believe this is a permission problem.

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  • Histogram using gnuplot?

    - by mary
    I know how to create a histogram (just use "with boxes") in gnuplot if my .dat file already has properly binned data. Is there a way to take a list of numbers and have gnuplot provide a histogram based on ranges and bin sizes the user provides?

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  • iPhone multi view/window switch

    - by NeoNmaN
    I've now put all night and tried to get my iPhone program to perform as intended, it has also succeed me sometimes but now I have pages with a problem I simplehen can not get resolved. 've tried this video guide that makes it I want it to but I stare my project up with NSObject (Windows Based) for my program. Has anyone any. can help me a little further here? or link to come there can get me on track again link: http://www.youtube.com/watch?v=2GeazgOqKJ4

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  • Using Artificial Intelligence (AI) to predict Stock Prices

    - by akaphenom
    Given a set of datavery similar to the Motley Fool CAPS system, where individual users enter BUY and SELL recommendations on various equities. What I would like to do is show each recommendation and I guess some how rate (1-5) as to whether it was good predictor<5 (ie corellation coeffient = 1) of the future stock price (or eps or whatever) or a horrible predictor (ie corellation coeffient = -1) or somewhere inbetween. Each recommendation is tagged to a particular user, so that can be tracked over time. I can also track market direction (bullish / bearish) based off of something like sp500 price. The components I think that would make sense in the model would be: user direction (long/short) market direction sector of stock The thought is that some users are better in bull markets than bear (and vice versa), and some are better at shorts than longs- and then a cobination the above. I can automatically tag the market direction and sector (based off the market at the time and the equity being recommended). The thought is that I could present a series of screens and allow me to rank each individual recommendation by displaying available data absolute, market and sector out performance for a specfic time period out. I would follow a detailed list for ranking the stocks so that the ranking is as objective as possible. My assumtion is that a single user is right no more than 57% of the time - but who knows. I could load the system and say "Lets rank the recommendation as a predictor of stock value 90 days forward"; and that would represent a very explicit set of rankings. NOW here is the crux - I want to create some sort of machine learning algorithm that can identify patterns over a series of time so that as recommendations stream into the application we maintain a ranking of that stock (ie. similar to correlation coeeficient) as to the likelihood of that recommendation (in addition to the past series of recommendations ) will affect the price. Now here is the super crux. I have never taken an AI class / read an AI book / never mind specific to machine learning. So I cam looking for guidance - sample or description of a similar system I could adapt. Place to look for info or any general help. Or even push me in the right direction to get started... My hope is to implment this with F# and be able to impress my friends with a new skillset in F# with an implementation of machine learnign and potentially something (application / source) I can include in a tech portfolio or blog space; Thank you for any advice in advance.

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  • Using Shapefile data to determine neighborhood for a longitude/latitude

    - by Kunal
    I'm trying to determine the neighborhood for a location, based on Zillow's freely published Shapefile data. I don't really know anything about the Shapefile format, and am having some trouble finding tutorials online -- but I basically want to take latitude/longitude pairs, and run it against the Shapefile data to determine the corresponding neighborhood(s). Can anyone point me in the right direction? Not even sure where to start. This is where I've grabbed the Shapefile files: http://www.zillow.com/howto/api/neighborhood-boundaries.htm

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  • Is Flash/Actionscript any safer than Javascript for persistent online game?

    - by Sean Madigan
    I'm finding lately how unsecure Javascript is when programming a game (I'm trying to do a turn based RPG and currently the battle calculations are done through Javascript which any player can cheat with of course giving themselves as much XP as they want), so I'm wondering if I were to move my battle screen to flash if this would be any more secure, or is there just as easy of a way to cheat this?

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  • Drupal: View with exposed Taxonomy filter.. 3 questions

    - by Patrick
    Hi, I'm using Views module and an exposed taxonomy based filter, to allow users to select a subselection of articles. I need to further customize my filter: 1) I want the user able to order the tags alphabetically by clicking a checkbox (if this checkbox is unchecked the default order is reset. 2) I want all tags selected in the beginning to show my user all the articles. (Additional tags can be added by the user later, so I cannot just select all the tags in Views settings, because the new ones would be uncovered). thanks

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  • Run Google-apps-script on Google-Spreadsheet event?

    - by jdk
    If I create a Google apps script, can I hook it up to Google spreadsheet to run based on an event, or must I manually invoke it? I don't know if Google spreadsheet supports any events. For example: a Google app script that strikes out rows in the spreadsheet that have been marked completed by way of a column having the digit 1 beside completed rows. I would like this to run whenever a row is modified, or even when the spreadsheet is first loaded.

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  • Why use Monte-Carlo method?

    - by Gili
    When should the Monte-Carlo method be used? For example, why did Joel decide to use the Monte-Carlo method for Evidence Based Scheduling instead of methodically processing all user data for the past year?

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  • What is the best way to use EF 4 and DDD

    - by William
    I would like to use EFf 4 as my ORM in my DDD project. I am going to generate my model based on my classes. Should I create classes that are basically dto objects for my business objects to consumer or should I implement the actuall BO classes in my EF model?

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  • Entrepreneur Needs Programmers, Architects, or Engineers?

    - by brand-newbie
    Hi guys (Ladies included). I posted on a related site, but THIS is the place to be. I want to build a specialized website. I am an entrepreneur and refining valuations now for venture capitalsists: i.e., determining how much cash I will need. I need help in understanding what human resources I need (i.e., Software Programmers, Architects, Engineers, etc.)??? Trust me, I have read most--if not all--of the threads here on the subject, and I can tell you I am no closer to the answer than ever. Here's my technology problem: The website will include (2) main components: a search engine (web crawler)...and a very large database. The search engine will not be a competitor to google, obviously; however, it "will" require bots to scour the web. The website will be, basically, a statistical database....where users should be able to pull up any statistic from "numerous" fields. Like any entrepreneur with a web-based vision, I'm "hoping" to get 100+ million registered users eventually. However, practically, we will start as small as feasible. As regards the technology (database architecture, servers, etc.), I do want quality, quality, quality. My priorities are speed, and the capaility to be scalable...so that if I "did" get globally large, we could do it without having to re-engineer anything. In other words, I want the back-end and the "infrastructure" to be scalable and professional....with emphasis on quality. I am not an IT professional. Although I've built several Joomla-based websites, I'm just a rookie who's only used minor javascript coding to modify a few plug-ins and components. The business I'm trying to create requires specialization and experts. I want to define the problem and let a capable team create the final product, and I will stay totally hands off. So who do you guys suggest I hire to run this thing? A software engineer? I was thinking I would need a "database engineer," a "systems security engineer", and maybe 2 or 3 "programmers" for the search engine. Also a web designer...and maybe a part-time graphic designer...everyone working under a single software engineer. What do you guys think? Who should I hire?...I REALLY need help from some people in the industry (YOU guys) on this. Is this project do-able in 6 months? If so, how many people will I need? Who exactly needs to head up this thing?...Senior software engineer, an embedded engineer, a CC++ engineer, a java engineer, a database engineer? And do I build this thing is Ruby or Java?

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  • Crawling engine architecture - Java/ Perl integration

    - by Bigtwinz
    Hi all, I am looking to develop a management and administration solution around our webcrawling perl scripts. Basically, right now our scripts are saved in SVN and are manually kicked off by SysAdmin/devs etc. Everytime we need to retrieve data from new sources we have to create a ticket with business instructions and goals. As you can imagine, not an optimal solution. There are 3 consistent themes with this system: the retrieval of data has a "conceptual structure" for lack of a better phrase i.e. the retrieval of information follows a particular path we are only looking for very specific information so we dont have to really worry about extensive crawling for awhile (think thousands-tens of thousands of pages vs millions) crawls are url-based instead of site-based. As I enhance this alpha version to a more production-level beta I am looking to add automation and management of the retrieval of data. Additionally our other systems are Java (which I'm more proficient in) and I'd like to compartmentalize the perl aspects so we dont have to lean heavily on outside help. I've evaluated the usual suspects Nutch, Droid etc but the time spent on modifying those frameworks to suit our specific information retrieval cant be justified. So I'd like your thoughts regarding the following architecture. I want to create a solution which use Java as the interface for managing and execution of the perl scripts use Java for configuration and data access stick with perl for retrieval An example use case would be a data analyst delivers us a requirement for crawling perl developer creates the required script and uses this webapp to submit the script (which gets saved to the filesystem) the script gets kicked off from the webapp with specific parameters .... Webapp should be able to create multiple threads of the perl script to initiate multiple crawlers. So questions are what do you think how solid is integration between Java and Perl specifically from calling perl from java has someone used such a system which actually is part perl repository The goal really is to not have a whole bunch of unorganized perl scripts and put some management and organization on our information retrieval. Also, I know I can use perl do do the web part of what we want - but as I mentioned before - trying to keep perl focused. But it seems assbackwards I'm not adverse to making it an all perl solution. Open to any all suggestions and opinions. Thanks

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  • send and receive SMS and developing a SMS panel

    - by Ali Foroughi
    i am working on a SMS panel based on .net framework.i just send some messages to my contacts and received their replies.i want to know witch received message is a reply of witch sent message. ex : if i send A and B messages to 1 contact and then it sends back to me X and Y messages as its reply ,now how i can find out X is a answer for witch one A or B messages.in other hand,what about Y message?!! I need some ideas or personal experiences about send and receive SMS and generating a SMS panel. thanks

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  • What groupware/collaboration system to choose?

    - by Ivan
    I am looking for a good (stable enough, intuitive enough, and the more technologically modern and advanced - the better) free PHP-based online groupware/collaboration system. 100% UTF-8 is a requirement. OOP-style code is an advantage. And collaborative mindmapping would be a cool feature to have. The team is of ~20 people. Any suggestions?

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  • Derby vs PostgreSql Performance Comparison

    - by Austin
    We are doing research right now on whether to switch our postgresql db to an embedded Derby db. Both would be using glassfish 3 for our data layer. Anybody have any opinions or knowledge that could help us decide? Thanks! edit: we are writing some performance tests ourselves right now. Looking for answers more based on experience / first hand knowledge

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