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  • Huge Graph Structure

    - by Harph
    I'm developing an application in which I need a structure for represent a huge graph (between 1000000 and 6000000 nodes and 100 or 600 edges) in memory. The edges representation will contain some attribute of the relation. I have tried a memory map representation, arrays, dictionaries and string for represent that structure in memory, but this always crash because the memory limit. I would to get an advice of how can I represent this, or something similar. By the way, I'm using python.

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  • Technique for selectively formatting data in a PowerShell pipeline and output as HTML

    - by halr9000
    Say that you want to do some fancy formatting of some tabular output from powershell, and the destination is to be html (either for a webserver, or to be sent in an email). Let's say for example that you want certain numeric values to have a different background color. Whatever. I can think of two solid programmatic ways to accomplish this: output XML and transform with XSLT, or output HTML and decorate with CSS. XSLT is probably the harder of the two (I say that because I don't know it), but from what little I recall, it has the benefit of bring able to embed the selection criteria (xpath?) for aforementioned fancy formatting. CSS on the other hand needs a helping hand. If you wanted a certain cell to be treated specially, then you would need to distinguish it from its siblings with a class, id, or something along those lines. PowerShell doesn't really have a way to do that natively, so that would mean parsing the HTML as it leaves convertto-html and adding, for example, a "emphasis" class: <td class="emphasis">32MB</td> I don't like the idea of the required text parsing, especially given that I would rather be able to somehow emphasize what needs emphasizing in Powershell before it hits HTML. Is XSLT the best way? Have suggestions for how to markup the HTML after it leaves convertto-html or ideas of a different way?

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  • Mass update of data in sql from int to varchar

    - by Christopher Kelly
    we have a large table (5608782 rows and growing) that has 3 columns Zip1,Zip2, distance all columns are currently int, we would like to convert this table to use varchars for international usage but need to do a mass import into the new table convert zip < 5 digits to 0 padded varchars 123 becomes 00123 etc. is there a way to do this short of looping over each row and doing the translation programmaticly?

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  • reRendering is not happening in jsf using data table

    - by palakolanusrinu
    HI, Rerendering is not working in my code please help in this <rich:dataTable id="bookIncome" value="#{myBean.ftBoookIncomelst}" var="item" rowKeyVar="row" first="0" width="100%"> <rich:subTable id="subBookIncome"value="#{item.txIncome}" var="income" rowKeyVar="row"> <rich:column id="descrtiptionColumn" width="30%"> <h:outputText value="#{income.descriptionCell.value}" rendered="#{!item.editableRow}" style="#{income.descriptionCell.boldClass}"> </h:outputText> <rich:inplaceInput layout="block" value="#{income.descriptionCell.value}" required="true" rendered="#{item.editableRow}" requiredMessage="Description at row #{row+1} wasn't filled." changedHoverClass="hover" viewHoverClass="hover" viewClass="inplace" changedClass="inplace" selectOnEdit="true" editEvent="onclick"> </rich:inplaceInput> In the above code i have proper id for datatable and i'm calling my ajax call using But its not showing any response but its hitting the server and its calling proper method and updating the required list also..Please help in this why its not rendering its not showing any exception on console also...

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  • How are two-dimensional arrays formatted in memory?

    - by Chris Cooper
    In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code: int** someNumbers = malloc(arrayRows*sizeof(int*)); for (i = 0; i < arrayRows; i++) { someNumbers[i] = malloc(arrayColumns*sizeof(int)); } Clearly, this actually creates a one-dimensional array of pointers to a bunch of separate one-dimensional arrays of integers, and "The System" can figure you what I mean when I ask for: someNumbers[4][2]; But when I statically declare a 2D array, as in the following line...: int someNumbers[ARRAY_ROWS][ARRAY_COLUMNS]; ...does a similar structure get created on the stack, or is it of another form completely? (i.e. is it a 1D array of pointers? If not, what is it, and how do references to it get figured out?) Also, when I said, "The System," what is actually responsible for figuring that out? The kernel? Or does the C compiler sort it out while compiling?

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  • GridView does not display correcty sorted Data when i click column

    - by user329419
    Date column does not display in sorted in GridView using vb.net. In sql server the select query is returning records in sorted manner or in order by. But for some reason GridView does not display properly. it goes to an event preRenderComplete then it binds automatically Protected Sub Page_PreRenderComplete(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRenderComplete 'Force the selections made in page_load to be shown in the gridview by causing a postback GridView1.DataBind() If GridView1.Rows.Count > 0 Then 'this is not counting correctly disable until i get it figured out '' lblMsg.Text = GridView1.Rows.Count.ToString + " Referrals" Else lblMsg.Text() = "No referrals to be processed" End If 'Turn off the Background Contolls 'If Not IsPostBack Then PanelBackendControls.Visible = False End Sub End Region _ Public Shared Function A02WF01_AdminView(ByVal strUserID As String, ByVal strTestMode As String, ByVal strSearchFieldValue As String, ByVal strDate As String) As DataTable Dim sel As String Dim conn As SqlConnection = New SqlConnection(WF01ConnectionString) If strSearchFieldValue <> "" And strTestMode = "ON" Then sel = "SELECT DISTINCT Since, WorkFlow_Step, " sel = sel & " Started_By, Client_FullName, Product_Desc, " sel = sel & " Branch_List, Event_AssignedID, DaysElapsed, Status,Instance_ID,Seq_ID,Form_Code " sel = sel & " FROM A02W01ViewAllTest " Dim WhereClause As String Dim OrderClause As String WhereClause = " WHERE ( Event_IsLatest = 1)" If strUserID <> "Admin" Then End If 'WhereClause = WhereClause + " AND WF_Start_UserID like " + "'" + strUserID + "')" WhereClause = WhereClause + " And( Started_By Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR Client_FullName Like " + "'%" + strSearchFieldValue + "%'" 'WhereClause = WhereClause + " OR FullName Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR Product_Desc Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR Branch_List Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR DaysElapsed Like " + "'%" + strSearchFieldValue + "%')" 'WhereClause = WhereClause + " OR Form_Code Like " + "'%" + strSearchFieldValue + "%')" OrderClause = " ORDER BY Since DESC" sel = sel + WhereClause + OrderClause ElseIf strSearchFieldValue <> "" And strTestMode <> "ON" Then sel = "SELECT DISTINCT Since, WorkFlow_Step, " sel = sel & " Started_By, Client_FullName, Product_Desc, " sel = sel & " Branch_List, Event_AssignedID, DaysElapsed, Status " sel = sel & " FROM A02W01ViewAll " Dim WhereClause As String Dim OrderClause As String WhereClause = " WHERE ( Event_IsLatest = 1)" If strUserID <> "Admin" Then End If 'WhereClause = WhereClause + " AND WF_Start_UserID like " + "'" + strUserID + "')" WhereClause = WhereClause + " AND( Started_By Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR Client_FullName Like " + "'%" + strSearchFieldValue + "%'" 'WhereClause = WhereClause + " OR Client_LastName Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR Product_Desc Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR Branch_List Like " + "'%" + strSearchFieldValue + "%'" WhereClause = WhereClause + " OR DaysElapsed Like " + "'%" + strSearchFieldValue + "%'))" 'WhereClause = WhereClause + " OR Form_Code Like " + "'%" + strSearchFieldValue + "%'))" OrderClause = " ORDER BY Since DESC" sel = sel + WhereClause + OrderClause End If If strTestMode <> "ON" And strSearchFieldValue = "" Then sel = "SELECT DISTINCT Since, WorkFlow_Step, " sel = sel & " Started_By, Client_LastName, Client_FullName, Product_Desc, " sel = sel & " Branch_List, Event_AssignedID, DaysElapsed, Status " sel = sel & " FROM A02W01ViewAll " Dim WhereClause As String Dim OrderClause As String WhereClause = " WHERE Event_IsLatest = 1" 'WhereClause = WhereClause + " AND (Event_IsLatest = 1) " OrderClause = " ORDER BY Since DESC" sel = sel + WhereClause + OrderClause Else If strSearchFieldValue = "" And strTestMode = "ON" And strDate = "" Then sel = "SELECT DISTINCT Since, WorkFlow_Step, " sel = sel & " Started_By, Client_FullName, Product_Desc, " sel = sel & " Branch_List, Event_AssignedID, DaysElapsed, Status, Instance_ID,Seq_ID,Form_Code " sel = sel & " FROM A02W01ViewAllTest " Dim WhereClause As String Dim OrderClause As String WhereClause = " WHERE Event_IsLatest = 1" 'Display everything for Admin ' Comment below code 'If strUserID <> "Admin" Then WhereClause = WhereClause + " AND WF_Start_UserID like " + "'" + strUserID + "'" OrderClause = " ORDER BY Since DESC" sel = sel + WhereClause + OrderClause ElseIf strSearchFieldValue = "" And strTestMode = "ON" And strDate <> "" Then sel = "" sel = sel & "SELECT TOP 100 PERCENT Since, WorkFlow_Step, " sel = sel & "Started_By, Client_Fullname, Product_Desc, " sel = sel & "Branch_List, Event_AssignedID, DaysElapsed, Status, " sel = sel & "Instance_ID, Seq_ID, Form_Code " sel = sel & " FROM A02W01ViewDistinct " Dim WhereClause As String Dim OrderClause As String WhereClause = " WHERE Event_IsLatest = 1" 'Display everything for Admin ' Comment below code 'If strUserID <> "Admin" Then WhereClause = WhereClause + " AND WF_Start_UserID like " + "'" + strUserID + "'" OrderClause = " ORDER BY YEAR(Since) DESC, MONTH(Since) DESC, DAY(Since) DESC" sel = sel + WhereClause + OrderClause End If End If Dim da As SqlDataAdapter = New SqlDataAdapter(sel, conn) Dim ds As DataSet = New DataSet() Try conn.Open() da.Fill(ds, "odsA02_Tracking") conn.Close() Catch e As SqlException WFClassLib.PageError() Finally conn.Close() End Try If ds.Tables("odsA02_Tracking") IsNot Nothing Then _ Return ds.Tables("odsA02_Tracking") 'Return ds 'If ds.Tables("odsA02_Tracking") Is Nothing Then Return Nothing 'End If End Function BorderStyle="Outset" CellPadding="4" DataSourceID="odsA02_Tracking" ForeColor="#333333" GridLines="Vertical" Style="border-right: #0000ff thin solid; table-layout: auto; border-top: #0000ff thin solid; font-size: x-small; border-left: #0000ff thin solid; border-bottom: #0000ff thin solid; font-family: Arial; border-collapse: separate" Font-Size="Small" PageSize="30" <Columns> <asp:CommandField ShowSelectButton="True" /> <asp:boundfield datafield="Since" HeaderText="Submit Date" ReadOnly=True SortExpression="Since" /> <asp:BoundField DataField="Started_By" HeaderText="Submitted By" SortExpression="Started_By" /> <asp:BoundField DataField="Client_FullName" HeaderText="Client Name" ReadOnly="True" SortExpression="Client_FullName" /> <asp:BoundField DataField="Product_Desc" HeaderText="Product" ReadOnly="True" SortExpression="Product_Desc" /> <asp:BoundField DataField="Branch_List" HeaderText="Branch" ReadOnly="True" SortExpression="Branch_List" /> <asp:BoundField DataField="Event_AssignedID" HeaderText="Assigned To" ReadOnly="True" SortExpression="Event_AssignedID" /> <asp:BoundField DataField="DaysElapsed" HeaderText="Days Open" ReadOnly="True" SortExpression="DaysElapsed" /> <asp:BoundField DataField="Status" HeaderText="Status" SortExpression="Status" /> <asp:TemplateField> <ItemTemplate> <asp:HiddenField ID=hdnInstanceID Value='<%#Eval("Instance_ID") %>' runat=server> </asp:HiddenField> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <ItemTemplate> <asp:HiddenField ID=hdnSeqID Value='<%#Eval("Seq_ID") %>' runat=server/> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <ItemTemplate> <asp:HiddenField ID=hdnFormCode Value='<%#Eval("Form_Code") %>' runat=server/> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> &nbsp;&nbsp; <asp:Label ID="lblMsg" runat="server" Style="font-size: small; color: red; font-family: Arial" Width="525px" Font-Bold="True"></asp:Label><br /> <br /> <asp:Button ID="btnReturn" runat="server" Text="Return" /><br /> <br /> <asp:Label ID="lbltxtUserID" runat="server" Text="txtUserID" Visible="False"></asp:Label> <asp:TextBox ID="txtUserID" runat="server" Visible="False" Width="226px"></asp:TextBox><br /> <asp:Label ID="label4" runat="server" Text="TestModeOn" Visible="false"></asp:Label> <asp:TextBox ID="TestModeOn" runat="server" Visible="False" Width="226px"></asp:TextBox><br /> <br /> <asp:Label ID="lblSearchUserEntered" runat="server" Visible="false" Text="searchText" ></asp:Label> <asp:TextBox ID="searchText" runat="server" Visible="False" Width ="226px" ></asp:TextBox> <br /> <asp:Label ID="Label1" runat="server" Text="txtInstance_ID" Visible="False"></asp:Label> <asp:TextBox ID="txtInstance_ID" runat="server" Visible="False" Width="226px"></asp:TextBox><br /> <asp:Label ID="Label2" runat="server" Text="txtSeq_ID" Visible="False"></asp:Label> <asp:TextBox ID="txtSeq_ID" runat="server" Visible="False" Width="226px"></asp:TextBox><br /> <asp:Label ID="Label3" runat="server" Text="txtForm_Code" Visible="False"></asp:Label> <asp:TextBox ID="txtForm_Code" runat="server" Visible="False" Width="226px"></asp:TextBox><br /> <br /> <asp:Label ID="lblSince" runat="server" Visible="false" Text="Since" ></asp:Label> <asp:TextBox ID="SortSince" runat="server" Visible="False" Width ="226px" ></asp:TextBox> <br /> <br /> <asp:ObjectDataSource ID="odsA02_Tracking" runat="server" OldValuesParameterFormatString="original_{0}" SelectMethod="A02WF01_AdminView" TypeName="WFA02DataObjects"> <SelectParameters> <asp:ControlParameter ControlID="txtUserID" Name="strUserID" PropertyName="Text" Type="String" /> <asp:ControlParameter ControlID="TestModeOn" Name="strTestMode" PropertyName="Text" Type="String" /> <asp:ControlParameter ControlID="searchText" Name="strSearchFieldValue" PropertyName="Text" Type="String" /> <asp:ControlParameter ControlID="SortSince" Name="strDate" PropertyName="Text" Type="String" /> </SelectParameters> </asp:ObjectDataSource> </div> </form>

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  • Interpolating data points in Excel

    - by Niels Basjes
    Hi, I'm sure this is the kind of problem other have solved many times before. A group of people are going to do measurements (Home energy usage to be exact). All of them will do that at different times and in different intervals. So what I'll get from each person is a set of {date, value} pairs where there are dates missing in the set. What I need is a complete set of {date, value} pairs where for each date withing the range a value is known (either measured or calculated). I expect that a simple linear interpolation would suffice for this project. If I assume that it must be done in Excel. What is the best way to interpolate in such a dataset (so I have a value for every day) ? Thanks. NOTE: When these datasets are complete I'll determine the slope (i.e. usage per day) and from that we can start doing home-to-home comparisons. ADDITIONAL INFO After first few suggestions: I do not want to manually figure out where the holes are in my measurement set (too many incomplete measurement sets!!). I'm looking for something (existing) automatic to do that for me. So if my input is {2009-06-01, 10} {2009-06-03, 20} {2009-06-06, 110} Then I expect to automatically get {2009-06-01, 10} {2009-06-02, 15} {2009-06-03, 20} {2009-06-04, 50} {2009-06-05, 80} {2009-06-06, 110} Yes, I can write software that does this. I am just hoping that someone already has a "ready to run" software (Excel) feature for this (rather generic) problem.

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  • ASP.NET Repeater and DataBinder.Eval

    - by Fernando
    I've got a <asp:Repeater> in my webpage, which is bound to a programatically created dataset. The purpose of this repeater is to create an index from A-Z, which, when clicked, refreshes the information on the page. The repeater has a link button like so: <asp:LinkButton ID="indexLetter" Text='<%#DataBinder.Eval(Container.DataItem,"letter")%>' runat="server" CssClass='<%#DataBinder.Eval(Container.DataItem, "cssclass")%>' Enabled='<%#DataBinder.Eval(Container.DataItem,"enabled")%>'></asp:LinkButton> The dataset is created the following way: protected DataSet getIndex(String index) { DataSet ds = new DataSet(); ds.Tables.Add("index"); ds.Tables["index"].Columns.Add("letter"); ds.Tables["index"].Columns.Add("cssclass"); ds.Tables["index"].Columns.Add("enabled"); char alphaStart = Char.Parse("A"); char alphaEnd = Char.Parse("Z"); for (char i = alphaStart; i <= alphaEnd; i++) { String cssclass="", enabled="true"; if (index == i.ToString()) { cssclass = "selected"; enabled = "false"; } ds.Tables["index"].Rows.Add(new Object[3] {i.ToString(),cssclass,enabled }); } return ds; } However, when I run the page, a "Specified cast is not valid exception" is thrown in Text='<%#DataBinder.Eval(Container.DataItem,"letter")'. I have no idea why, I have tried manually casting to String with (String), I've tried a ToString() method, I've tried everything. Also, if in the debugger I add a watch for DataBinder.Eval(Container.DataItem,"letter"), the value it returns is "A", which according to me, should be fine for the Text Property. EDIT: Here is the exception: System.InvalidCastException was unhandled by user code Message="Specified cast is not valid." Source="App_Web_cmu9mtyc" StackTrace: at ASP.savecondition_aspx._DataBinding_control7(Object sender, EventArgs e) in e:\Documents and Settings\Fernando\My Documents\Visual Studio 2008\Projects\mediTrack\mediTrack\saveCondition.aspx:line 45 at System.Web.UI.Control.OnDataBinding(EventArgs e) at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) at System.Web.UI.Control.DataBind() at System.Web.UI.Control.DataBindChildren() InnerException: Any advice will be greatly appreciated, thank you EDIT 2: Fixed! The problem was not in the Text or CSS tags, but in the Enabled tag, I had to cast it to a Boolean value. The problem was that the exception was signaled at the Text tag, I don't know why

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  • Why can't RB-Tree be a list?

    - by Alex
    Hey everyone. I have a problem with the rb-trees. according to wikipedia, rb-tree needs to follow the following: A node is either red or black. The root is black. (This rule is used in some definitions and not others. Since the root can always be changed from red to black but not necessarily vice-versa this rule has little effect on analysis.) All leaves are black. Both children of every red node are black. Every simple path from a given node to any of its descendant leaves contains the same number of black nodes. As we know, an rb-tree needs to be balanced and has the height of O(log(n)). But, if we insert an increasing series of numbers (1,2,3,4,5...) and theoretically we will get a tree that will look like a list and will have the height of O(n) with all its nodes black, which doesn't contradict the rb-tree properties mentioned above. So, where am I wrong?? thanks.

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  • Why freed struct in C still has data?

    - by kliketa
    When I run this code: #include <stdio.h> typedef struct _Food { char name [128]; } Food; int main (int argc, char **argv) { Food *food; food = (Food*) malloc (sizeof (Food)); snprintf (food->name, 128, "%s", "Corn"); free (food); printf ("%d\n", sizeof *food); printf ("%s\n", food->name); } I still get 128 Corn although I have freed food. Why is this? Is memory really freed?

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  • retrive my posted data from facebook

    - by hardik
    hello all i am able to connect to facebook through api key from my native iphone application i can also send my post to the facebook through my application but i want to retrive that same post into my application please guide me how could i do that thanks in advance

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  • onblur deletes data when submit, why?

    - by Syom
    i have the following script <input style="color: #ccc" type="text" value="something" name="country" onFocus="if (this.value == 'something') { this.value='';this.style.color='black';}" onblur="if (this.value != 'something') { this.value='something'}" /> <input type="submit" value="save" /> it works fine, but when i click on submit button, it also deletes the value "something" so, what can i do, if i want, that when i click on submit button, value doesn't delete? thanks

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  • ASP.NET MVC Unit Testing Controllers - Repositories

    - by Brian McCord
    This is more of an opinion seeking question, so there may not be a "right" answer, but I would welcome arguments as to why your answer is the "right" one. Given an MVC application that is using Entity Framework for the persistence engine, a repository layer, a service layer that basically defers to the repository, and a delete method on a controller that looks like this: public ActionResult Delete(State model) { try { if( model == null ) { return View( model ); } _stateService.Delete( model ); return RedirectToAction("Index"); } catch { return View( model ); } } I am looking for the proper way to Unit Test this. Currently, I have a fake repository that gets used in the service, and my unit test looks like this: [TestMethod] public void Delete_Post_Passes_With_State_4() { //Arrange var stateService = GetService(); var stateController = new StateController( stateService ); ViewResult result = stateController.Delete( 4 ) as ViewResult; var model = (State)result.ViewData.Model; //Act RedirectToRouteResult redirectResult = stateController.Delete( model ) as RedirectToRouteResult; stateController = new StateController( stateService ); var newresult = stateController.Delete( 4 ) as ViewResult; var newmodel = (State)newresult.ViewData.Model; //Assert Assert.AreEqual( redirectResult.RouteValues["action"], "Index" ); Assert.IsNull( newmodel ); } Is this overkill? Do I need to check to see if the record actually got deleted (as I already have Service and Repository tests that verify this)? Should I even use a fake repository here or would it make more sense just to mock the whole thing? The examples I'm looking at used this model of doing things, and I just copied it, but I'm really open to doing things in a "best practices" way. Thanks.

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  • Binary search in rotated sorted list

    - by Algorist
    I am having a sorted list which is rotated and I would like to do a binary search on that list to find the minimum element. Lets suppose initial list is {1,2,3,4,5,6,7,8} rotated list can be like {5,6,7,8,1,2,3,4} Normal binary search doesn't work in this case. Any idea how to do this.

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  • Subset and lagging list data structure R

    - by user1234440
    I have a list that is indexed like the following: >list.stuff [[1]] [[1]]$vector ... [[1]]$matrix .... [[1]]$vector [[2]] null [[3]] [[3]]$vector ... [[3]]$matrix .... [[3]]$vector . . . Each segment in the list is indexed according to another vector of indexes: >index.list 1, 3, 5, 10, 15 In list.stuff, only at each of the indexes 1,3,5,10,15 will there be 2 vectors and one matrix; everything else will be null like [[2]]. What I want to do is to lag like the lag.xts function so that whatever is stored in [[1]] will be pushed to [[3]] and the last one drops off. This also requires subsetting the list, if its possible. I was wondering if there exists some functions that handle list manipulation. My thinking is that for xts, a time series can be extracted based on an index you supply: xts.object[index,] #returns the rows 1,3,5,10,15 From here I can lag it with: lag.xts(xts.object[index,]) Any help would be appreciated thanks: EDIT: Here is a reproducible example: list.stuff<-list() vec<-c(1,2,3,4,5,6,7,8,9) vec2<-c(1,2,3,4,5,6,7,8,9) mat<-matrix(c(1,2,3,4,5,6,7,8),4,2) list.vec.mat<-list(vec=vec,mat=mat,vec2=vec2) ind<-c(2,4,6,8,10) for(i in ind){ list.stuff[[i]]<-list.vec.mat }

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  • Getting user data from Active Directory using PL/SQL

    - by David Neale
    I had a discussion today regarding an Oracle procedure I wrote some time ago. I wanted to get 7500 user email addresses from Active Directory using PL/SQL. AD will return a maximum of 1000 rows and the LDAP provider used by Oracle will not support paging. Therefore, my solution was to filter on the last two characters of the sAMAccountName (*00,*01,*02...etc.). This results in 126 queries (100 for account names ending in digits, 26 for those ending in a letter...this was sufficient for my AD setup). The person I was speaking to (it was a job interview by the way) said he could have done it a better way, but he would not tell me what that method was. Could anybody hazard a guess at what this method was?

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