CreateStructure Example VBNET

VB.NET Example - CreateStructure![]() ![]() ![]() ![]() ![]() ' ################################################################################## ' The first function here CreateStructure(), contains a series of ' function calls leading upto the main function call, the second function ' within this file ( CreateStructurePart() ). ' which contains the answer that we are looking for.![]() ' The first function here is simply an example of how to construct the parameters ' in order acquire either a string Key (that is to be passed to other functions) ' or a computed result.![]() ' If you are viewing this source code from the chm or web help file you can use the ' outlining features to collapse certain sections of the code for better readability. ' ################################################################################## ![]() Imports System![]() ' Optional using instruction. We will use a mix of utilising fully qualified names (in the case of the financial objects) ' and using the reduced version (in the case of declaring enumerations). ' This is just to demostrate both types of coding.![]() Imports CTQL ' You need to add a reference to the QuantToolsNET.v2.dll also![]() ' Some global parameter in order to append to user defined keys. ' We use it here to ensure that we have unique Keys (in the case several of our examples ' use the same key-name) ' In normal use, a user defined string will be used and so this variable will be pointless. Global nCTQryLegsGlobal As Integer ' Used by function parameters that take an optional range value. ' In Excel we simply omit the value, within the API functions, ' we pass an empty range object Global oEmptyRange As CTQL.CTRangeData Public Function VB_EX_CreateStructure() As String![]() nCTQryLegsGlobal = nCTQryLegsGlobal + 1 ![]() Dim szErrorMsg As String Try![]() ![]() ' EURO calendar used for holiday adjustments.![]() Dim MyEuroCal As String MyEuroCal = _ CALEUROPart()![]() ![]() ![]() ' UK date calendar used within the UK stock exchange.![]() Dim MyCALUKExchange As String MyCALUKExchange = _ CALUKExchangePart()![]() ![]() ![]() ' Creates a centralized valuation date object.![]() Dim MyValuationDate As String MyValuationDate = _ ValueDateObjPart()![]() ![]() ![]() ' Generates a schedule of start and end dates, given the initial ' start date and unadjusted final end dates. Dim MySchedule As String MySchedule = _ MakeSchedulePart( _ MyEuroCal)![]() ![]() ![]() ' Creates a Deposit template which is almost identical to a Libor ' Index, but without the YieldCurve information. Dim MyDepoTPL As String MyDepoTPL = _ CreateDepoTemplatePart( _ MyCALUKExchange, _ MyEuroCal)![]() ![]() ![]() ' Creates a Swap template which is almost identical to the definition ' of the parameters of a swap contract, but without the swap duration, ' buysell, and YieldCurve information. Dim MySwapTPL As String MySwapTPL = _ CreateSwapTemplatePart( _ MyEuroCal, _ MyDepoTPL)![]() ![]() ![]() ' Creates a SABR curve to model the dynamics of the volatility ' curve (smile). Dim MySABRVolCurve As String MySABRVolCurve = _ SABRVolCurvePart( _ MyValuationDate, _ MyDepoTPL, _ MySwapTPL)![]() ![]() ![]() ' Creates an amortisation object to be used within the amortisation ' fixed and floating rate leg objects. Dim MyCreateAmortObj As String MyCreateAmortObj = _ CreateAmortObjPart( _ MySchedule)![]() ![]() ![]() ' Creates a yield curve using market rates (No cross-currency ' Swaps). Dim MyMiniYC As String MyMiniYC = _ MKTYC_D__3Part( _ MyValuationDate, _ MyDepoTPL, _ MySwapTPL)![]() ![]() ![]() ' Creates a new Index code. Dim MyNewIndex2 As String MyNewIndex2 = _ CreateIndex__2Part( _ MyCALUKExchange, _ MyEuroCal, _ MyMiniYC)![]() ![]() ![]() ' Creates a market object which is an aggregate of interest rate ' market objects (Discounting curve and Interest rate volatility ' curve (volcurve)). Dim MyMarket4 As String MyMarket4 = _ CreateMKT__4Part( _ MyMiniYC, _ MySABRVolCurve)![]() ![]() ![]() ' Creates a floating rate leg. Dim MyCreateFloatLeg3 As String MyCreateFloatLeg3 = _ CreateFloatLeg__3Part( _ MySchedule, _ MyNewIndex2, _ MyMarket4)![]() ![]() ![]() ' Creates an amortised floating rate leg. Dim MyCreateAmortFloatLeg2 As String MyCreateAmortFloatLeg2 = _ CreateAmortFloatLeg__2Part( _ MyCreateAmortObj, _ MyNewIndex2, _ MyMarket4)![]() ![]() ![]() ' Creates a Fixed rate leg. Dim MyCreateFixedRateLeg3 As String MyCreateFixedRateLeg3 = _ CreateFixedRateLeg__3Part( _ MySchedule, _ MyMarket4)![]() ![]() ![]() ' This floating leg (or FRN) only provide one payoff. Dim MyCreateZCFloatLeg2 As String MyCreateZCFloatLeg2 = _ CreateZCFloatLeg__2Part( _ MySchedule, _ MyNewIndex2, _ MyMarket4)![]() ![]() ![]() ' Creates an amortised fixed rate leg. Dim MyCreateAmortFixLeg2 As String MyCreateAmortFixLeg2 = _ CreateAmortFixLeg__2Part( _ MyCreateAmortObj, _ MyMarket4)![]() ![]() ![]() ' Creates a porfolio of caplet or floorlet options from this floating ' Rate Leg. Dim MyCreateCapFLTLeg2 As String MyCreateCapFLTLeg2 = _ CreateCapFLTLeg__2Part( _ MyCreateFloatLeg3, _ MySABRVolCurve)![]() ![]() ![]() ' Creates a Structure object (which is really a portfolio of leg ' objects). Dim MyStructure As String MyStructure = _ CreateStructurePart( _ MyCreateAmortFloatLeg2, _ MyCreateFixedRateLeg3, _ MyCreateZCFloatLeg2, _ MyCreateAmortFixLeg2, _ MyCreateCapFLTLeg2)![]() ' This is the result we are looking for. VB_EX_CreateStructure = MyStructure![]() Catch e As Exception szErrorMsg = e.Message Throw e Catch e As System.ApplicationException szData = e.Message End Try End Function ![]() ![]() ' ///////////////////////////////////////////////////////////////////![]() Private Function CreateStructurePart( _ MyCreateAmortFloatLeg2 As String, _ MyCreateFixedRateLeg3 As String, _ MyCreateZCFloatLeg2 As String, _ MyCreateAmortFixLeg2 As String, _ MyCreateCapFLTLeg2 As String) As String![]() ![]() ' Create example range for parameter CreateStructure_Legs Dim CreateStructure_Legs _ As CTQL.CTRangeData ![]() Dim arrBCreateStructure_Legs As String() = { _ MyCreateAmortFloatLeg2, _ MyCreateFixedRateLeg3, _ MyCreateZCFloatLeg2, _ MyCreateAmortFixLeg2, _ MyCreateCapFLTLeg2 _ ' Array Data } Dim arrCreateStructure_Legs As CTQL.StringVector = _ New CTQL.StringVector(arrBCreateStructure_Legs) ' Second parameter determines whether the array is a column array (false) or a row array (true) CreateStructure_Legs = New CTQL.CTRangeData(arrCreateStructure_Legs, False) ![]() ![]() ![]() ' Key value to use as a handle for the created object Dim MyStructure As String MyStructure = "MyStructure" + "_" + CStr(nCTQryLegsGlobal)![]() ![]() ' When creating this object for the first time, set this parameter ' to a positive value. Dim Reload As Integer Reload = 1![]() ' Excel function call is : "CT.LEG.CreateStructure()"![]() ' Creates a Structure object (which is really a portfolio of leg ' objects). Dim rCreateStructure As String Dim oCTQryLegs As New CTQL.CTQryLegs rCreateStructure = CTQL.CTQryLegsSA.CreateStructure( _ MyStructure, _ Reload, _ CreateStructure_Legs)![]() ![]() CreateStructurePart = rCreateStructure End Function ![]() ![]() ![]() ![]() |