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  • Create a batch file to copy and rename file

    - by Estate Master
    I have little to no experience in writing batch files. I need to write one that copies a file to a new folder and renames it At the moment, my batch file consists of only this command: COPY ABC.PDF \\Documents As you can see, it only copies the file ABC.pdf to the network folder 'Documents'. However i need to change this so it renames the file ABCxxx.pdf, where xxx is a text variable that i would like to set somewhere in the batch file. For example, if xxx = "_Draft", then file would be renamed ABC_Draft.pdf after it is copied. Thanks

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  • Create a custom worksheet function in Excel VBA

    - by Tomalak
    I have a faint memory of being able to use VBA functions to calculate values in Excel, like this (as the cell formula): =MyCustomFunction(A3) Can this be done? EDIT: This is my VBA function signature: Public Function MyCustomFunction(str As String) As String The function sits in the ThisWorkbook module. If I try to use it in the worksheet as shown above, I get the #NAME? error. Solution (Thanks, codeape): The function is not accessible when it is defined ThisWorkbook module. It must be in a "proper" module, one that has been added manually to the workbook.

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  • How to create my own recommendation engine?

    - by Burak Dede
    i am intrested in recommendation engines these days and i wanna improve myself in this area.I am currently reading Programming Collective Intelligence (i think this is the best book about this subject) from OReilly (just started).But i dont have any ideas how to implement engine(what i mean by no idea dont know how to start).Lets say i have project like LastFM in my mind where do (should be implemented on database side or backend side)i start creating recommnedation engine? what level database knowledge will needed? is there any open source ones that can be used for help or any resource? what should be the first steps that i have to do?

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  • Create a Generic IEnumerable<T> given a IEnumerable and the member datatypes

    - by ilias
    Hi, I get an IEnumerable which I know is a object array. I also know the datatype of the elements. Now I need to cast this to an IEnumerable<T, where T is a supplied type. For instance IEnumerable results = GetUsers(); IEnumerable<T> users = ConvertToTypedIEnumerable(results, typeof(User)); I now want to cast/ convert this to IEnumerable<User. Also, I want to be able to do this for any type. I cannot use IEnumerable.Cast<, because for that I have to know the type to cast it to at compile time, which I don't have. I get the type and the IEnumerable at runtime. - Thanks

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  • Error when trying to create a faceted plot in ggplot2

    - by John Horton
    I am trying to make a faceted plot in ggplot2 of the coefficients on the regressors from two linear models with the same predictors. The data frame I constructed is this: r.together> reg coef se y 1 (Intercept) 5.068608671 0.6990873 Labels 2 goodTRUE 0.310575129 0.5228815 Labels 3 indiaTRUE -1.196868662 0.5192330 Labels 4 moneyTRUE -0.586451273 0.6011257 Labels 5 maleTRUE -0.157618168 0.5332040 Labels 6 (Intercept) 4.225580743 0.6010509 Bonus 7 goodTRUE 1.272760149 0.4524954 Bonus 8 indiaTRUE -0.829588862 0.4492838 Bonus 9 moneyTRUE -0.003571476 0.5175601 Bonus 10 maleTRUE 0.977011737 0.4602726 Bonus The "y" column is a label for the model, reg are the regressors and coef and se are what you would think. I want to plot: g <- qplot(reg, coef, facets=.~y, data = r.together) + coord_flip() But when I try to display the plot, I get: > print(g) Error in names(df) <- output : 'names' attribute [2] must be the same length as the vector [1] What's strange is that qplot(reg, coef, colour=y, data = r.together) + coord_flip() plots as you would expect.

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  • Create many constrained, random permutation of a list

    - by Eyal
    I need to make a random list of permutations. The elements can be anything but assume that they are the integers 0 through x-1. I want to make y lists, each containing z elements. The rules are that no list may contain the same element twice and that over all the lists, the number of times each elements is used is the same (or as close as possible). For instance, if my elements are 0,1,2,3, y is 6, and z is 2, then one possible solution is: 0,3 1,2 3,0 2,1 0,1 2,3 Each row has only unique elements and no element has been used more than 3 times. If y were 7, then 2 elements would be used 4 times, the rest 3.

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  • How to use Railroad to create a models diagram that show methods

    - by SeeBees
    Railroad is a great UML tool for Ruby on Rails. It can automatically generate class diagrams of models and controllers. For models, a railroad-generated class diagram shows attributes of each model and the associations between one model and another. A sample diagram can be found here. It is very useful for a developer to see attributes and associations of models. While attributes and associations reveal the inner states and relationships of models, methods specify their behaviours. They are all desirable in a class diagram. I would like railroad to generate a class diagram that also lists methods for models, which will help me to know what each model does. I know methods are displayed in a diagram that is generated for controllers, but I don't see such an option for a diagram of models. Does someone know how to do that with railroad? Or is that possible? Thanks!

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  • LINQ error when deployed - Security Exception - cannot create DataContext

    - by aximili
    The code below works locally, but when I deploy it to the server it gives the following error. Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. The code is protected void Page_Load(object sender, EventArgs e) { DataContext context = new DataContext(Global.ConnectionString); // <-- throws the exception //Table<Group> _kindergartensTable = context.GetTable<Group>(); Response.Write("ok"); } I have set full write permissons on all files and folders on the server. Any suggestions how to solve this problem? Thanks in advance.

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  • Script to create ODBC connection

    - by Mathew
    I need to deploy some software through SMS/SCCM and the software requires that an ODBC connection be created in Windows. The connection information I was given requires a user name and password. I have a batch script to import the connection information into the registry, however I don't know how to go about putting the user name and password in. I'd like to script this or put it in some kind of distributable package. Thanks, -Mathew

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  • Create ntp time stamp from gettimeofday

    - by krunk
    I need to calculate an ntp time stamp using gettimeofday. Below is how I've done it with comments on method. Look good to you guys? (minus error checking). Also, here's a codepad link. #include <unistd.h> #include <sys/time.h> const unsigned long EPOCH = 2208988800UL; // delta between epoch time and ntp time const double NTP_SCALE_FRAC = 4294967295.0; // maximum value of the ntp fractional part int main() { struct timeval tv; uint64_t ntp_time; uint64_t tv_ntp; double tv_usecs; gettimeofday(&tv, NULL); tv_ntp = tv.tv_sec + EPOCH; // convert tv_usec to a fraction of a second // next, we multiply this fraction times the NTP_SCALE_FRAC, which represents // the maximum value of the fraction until it rolls over to one. Thus, // .05 seconds is represented in NTP as (.05 * NTP_SCALE_FRAC) tv_usecs = (tv.tv_usec * 1e-6) * NTP_SCALE_FRAC; // next we take the tv_ntp seconds value and shift it 32 bits to the left. This puts the // seconds in the proper location for NTP time stamps. I recognize this method has an // overflow hazard if used after around the year 2106 // Next we do a bitwise AND with the tv_usecs cast as a uin32_t, dropping the fractional // part ntp_time = ((tv_ntp << 32) & (uint32_t)tv_usecs); }

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  • Best way to create SEO friendly URI string

    - by Mat Banik
    The method below allows only "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-" chars in URI strings. What better way is there to make nice SEO URI string? import org.apache.commons.lang.StringUtils; public static String safeChar(String input) { input = input.trim(); input = StringUtils.replace(input, " -", "-"); input = StringUtils.replace(input, "- ", "-"); input = StringUtils.replace(input, " - ", "-"); input = StringUtils.replaceChars(input, '\'', '-'); input = StringUtils.replaceChars(input, ' ', '-'); char[] allowed = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-".toCharArray(); char[] charArray = input.toCharArray(); StringBuilder result = new StringBuilder(); for (char c : charArray) { for (char a : allowed) { if (c == a) result.append(a); } } return result.toString(); }

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  • create a random sequence, skip to any part of the sequence

    - by Michael Xu
    Hi everyone, In Linux. There is an srand() function, where you supply a seed and it will guarantee the same sequence of pseudorandom numbers in subsequent calls to the random() function afterwards. Lets say, I want to store this pseudo random sequence by remembering this seed value. Furthermore, let's say I want the 100 thousandth number in this pseudo random sequence later. One way, would be to supply the seed number using srand(), and then calling random() 100 thousand times, and remembering this number. Is there a better way of skipping all 99,999 other numbers in the pseudo random list and directly getting the 100 thousandth number in the list. thanks, m

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  • What's the best way to create a Windows Mobile application with multiple screens in C#

    - by Joseph Earl
    I am creating a Windows Mobile Application in C# and Visual Studio 2008. The application will have 5-6 main 'screens'. There will also be bar (/area) with information (e.g. a title, whether the app is busy, etc) above the screens, and a toolbar (or similar control) below the screens with 5-6 buttons (with images) to change the active screen (i.e. the screens will share the top bar and toolbar) What is the best way to implement this? Use multiple forms, and just include the toolbar and top-bar in each Use a single form and something like the Tab control (but customised) to contain the screens Something else? Keeping in mind a) memory usage and b) time to switch screens. Thanks in advance. Any links, pointers etc are much appreciated.

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  • How do i create nice looking controls?

    - by KoolKabin
    hi guys, I found a nice controls used by a software so wanted to use or build similar nice looking controls for my applications in vb.net First Sample control is nice rounded cornor group box [ i guess so ]: http://sachicomputer.com/kabin/samples/control1.jpg and second control is nice looking tab control: http://sachicomputer.com/kabin/samples/control1.jpg

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  • Create Event Handler for TreeViewItem in WPF

    - by nihi_l_ist
    Im adding items to TreeView control via ItemsSource property and ItemTemplate property to set the template for TreeViewItem. How can i add an event handler to handle selection change event on TreeViewItems? For now my ItemTemplate looks like this: <Window.Resources><DataTemplate x:Key="PeerDetailTemplate"> <TextBlock Text="{Binding DESCRIPTION}" Tag="{Binding ID}" GotFocus="GetModules"/> </DataTemplate></Window.Resources> But it doesnt work (GetModules is not called). Im new to WPF, so show me the right direction to do such things, please.

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  • How To Create a Custom JavaMail Listener?

    - by ylazez
    greetings all i have an app that will send emails from different emails emails are in the form [email protected] and i need to make a listener on the server to listen to each incoming email to each different email then do some action i don't have any idea where to start, if someone can give me a simple overview of what I need to do or where to look up some examples how this would be done it would be very useful thank you.

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  • Create a virtual serial port for widcomm stack under 32feet

    - by i13m
    Hi, all Currently I am doing a project involves a bluetooth communication setup between a PDA and a small embedded device. This small embedded device can only be communicated with a virtual serial port over a bluetooth link. The PDA is the ipaq running with windows mobile 6, and I am using c#. I had done a program which can communication with the serial port over bluetooth. But the only issue is every time I run this program, I have to active the bluetooth radio, and manually pairing this device with the pda via the bluetooth manager. What I want to do is when running this program, it can establish the bluetooth connection between the pda and the embedded module. So I am using functions from the 32feet prject. This is one issue is I cant make the virutal serial port part, as I think the 32feet project can only make virual serial ports for the window bluetooth stack but not the widcomm bluetooth stact, which the ipaq is using. Therefore, are there any existing c# classes or stacks that can make virtual serial port under widcomm for windows mobile 6. Thanks

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  • How to create a web crawler/spider/robot?

    - by Chris
    Is there a way to make a web robot like websiteoutlook.com does? I need something that searches the internet for URLs only...I don't need links, descriptions, etc. What is the best way to do this without getting too technical? I guess it could even be a cronjob that runs a PHP script grabbing URLs from Google, or is there a better way? A simple example or a link to more information would be much appreciated.

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