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#1
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What does WEND mean in VBA code, e.g.:
While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#2
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Yes, you are correct! WEND is short for "While End" and it is used to mark the end of a While loop in VBA code.
In the code you provided, the
It's important to note that While loops can be dangerous if not used properly, as they can potentially create an infinite loop if the condition is never met. It's always a good idea to include a way to break out of the loop if necessary, such as a counter or a user input.
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#3
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While...Wend is just one of the control flow structures. I personally prefer
Do...Loop but there is nothing wrong with While...Wend. Check out this link on the different control flow structures... http://msdn.microsoft.com/library/de...7ecff00da4.asp -- HTH... Jim Thomlinson "Dave F" wrote: What does WEND mean in VBA code, e.g.: While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#4
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Very helpful, thanks.
Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Jim Thomlinson" wrote: While...Wend is just one of the control flow structures. I personally prefer Do...Loop but there is nothing wrong with While...Wend. Check out this link on the different control flow structures... http://msdn.microsoft.com/library/de...7ecff00da4.asp -- HTH... Jim Thomlinson "Dave F" wrote: What does WEND mean in VBA code, e.g.: While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#5
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While Abs(kw - Price) 0.00005
As a side note, it is a little unusual here because both kw & Price do not get changed in the loop. It appears it could cause an endless loop. Usually, one or both get change in the loop so that eventually kw-Price falls below .00005. -- Dana DeLouis Windows XP & Office 2007 "Dave F" wrote in message ... Very helpful, thanks. Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Jim Thomlinson" wrote: While...Wend is just one of the control flow structures. I personally prefer Do...Loop but there is nothing wrong with While...Wend. Check out this link on the different control flow structures... http://msdn.microsoft.com/library/de...7ecff00da4.asp -- HTH... Jim Thomlinson "Dave F" wrote: What does WEND mean in VBA code, e.g.: While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#6
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Interesting point. The VBA I pasted here is from a larger UDF that
calculates the yield on a bond. Here's the entire function. Perhaps this would explain the purpose of the loop: Function B_Yield_ISMA(Sett_d As Date, Mat_D As Date, Cpn As Double, Price As Double) As Double 'Calculates the yield of a coupon bearing bond (ISMA) Dim L As Double, t As Double, sz As Double, T1 As Double, T2 As Double, T3 As Double Dim k1 As Double, k2 As Double Dim n As Long L = Application.Days360(Sett_d, Mat_D) / 360 n = Int(L) t = L - n sz = Cpn * (1 - t) T1 = Application.Rate(L, Cpn, -Price, 100) If IsError(T1) Then T2 = -1 Else k1 = (-Application.PV(T1, n, Cpn, 100) + Cpn) / (1 + T1) ^ t - sz T2 = T1 + 0.00005 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + T2) ^ t - sz While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend B_Yield_ISMA = T2 End Function -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Dana DeLouis" wrote: While Abs(kw - Price) 0.00005 As a side note, it is a little unusual here because both kw & Price do not get changed in the loop. It appears it could cause an endless loop. Usually, one or both get change in the loop so that eventually kw-Price falls below .00005. -- Dana DeLouis Windows XP & Office 2007 "Dave F" wrote in message ... Very helpful, thanks. Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Jim Thomlinson" wrote: While...Wend is just one of the control flow structures. I personally prefer Do...Loop but there is nothing wrong with While...Wend. Check out this link on the different control flow structures... http://msdn.microsoft.com/library/de...7ecff00da4.asp -- HTH... Jim Thomlinson "Dave F" wrote: What does WEND mean in VBA code, e.g.: While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#7
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While Abs(kw - Price) 0.00005
It appears to me that kw could be a typo. Looking at the code, my guess is that it should be While Abs(k2 - Price) 0.00005 It appears to loop until k2 (Pv) calculation is reduced to a value close to Price. Since "2" is next to "w" on the keyboard, my guess is that it should be k2, and not kw. -- HTH :) Dana DeLouis Windows XP & Office 2007 "Dave F" wrote in message ... Interesting point. The VBA I pasted here is from a larger UDF that calculates the yield on a bond. Here's the entire function. Perhaps this would explain the purpose of the loop: Function B_Yield_ISMA(Sett_d As Date, Mat_D As Date, Cpn As Double, Price As Double) As Double 'Calculates the yield of a coupon bearing bond (ISMA) Dim L As Double, t As Double, sz As Double, T1 As Double, T2 As Double, T3 As Double Dim k1 As Double, k2 As Double Dim n As Long L = Application.Days360(Sett_d, Mat_D) / 360 n = Int(L) t = L - n sz = Cpn * (1 - t) T1 = Application.Rate(L, Cpn, -Price, 100) If IsError(T1) Then T2 = -1 Else k1 = (-Application.PV(T1, n, Cpn, 100) + Cpn) / (1 + T1) ^ t - sz T2 = T1 + 0.00005 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + T2) ^ t - sz While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend B_Yield_ISMA = T2 End Function -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Dana DeLouis" wrote: While Abs(kw - Price) 0.00005 As a side note, it is a little unusual here because both kw & Price do not get changed in the loop. It appears it could cause an endless loop. Usually, one or both get change in the loop so that eventually kw-Price falls below .00005. -- Dana DeLouis Windows XP & Office 2007 "Dave F" wrote in message ... Very helpful, thanks. Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Jim Thomlinson" wrote: While...Wend is just one of the control flow structures. I personally prefer Do...Loop but there is nothing wrong with While...Wend. Check out this link on the different control flow structures... http://msdn.microsoft.com/library/de...7ecff00da4.asp -- HTH... Jim Thomlinson "Dave F" wrote: What does WEND mean in VBA code, e.g.: While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#8
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You may be right. I got the code in an email from a colleague and have not
had a chance to test it. Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Dana DeLouis" wrote: While Abs(kw - Price) 0.00005 It appears to me that kw could be a typo. Looking at the code, my guess is that it should be While Abs(k2 - Price) 0.00005 It appears to loop until k2 (Pv) calculation is reduced to a value close to Price. Since "2" is next to "w" on the keyboard, my guess is that it should be k2, and not kw. -- HTH :) Dana DeLouis Windows XP & Office 2007 "Dave F" wrote in message ... Interesting point. The VBA I pasted here is from a larger UDF that calculates the yield on a bond. Here's the entire function. Perhaps this would explain the purpose of the loop: Function B_Yield_ISMA(Sett_d As Date, Mat_D As Date, Cpn As Double, Price As Double) As Double 'Calculates the yield of a coupon bearing bond (ISMA) Dim L As Double, t As Double, sz As Double, T1 As Double, T2 As Double, T3 As Double Dim k1 As Double, k2 As Double Dim n As Long L = Application.Days360(Sett_d, Mat_D) / 360 n = Int(L) t = L - n sz = Cpn * (1 - t) T1 = Application.Rate(L, Cpn, -Price, 100) If IsError(T1) Then T2 = -1 Else k1 = (-Application.PV(T1, n, Cpn, 100) + Cpn) / (1 + T1) ^ t - sz T2 = T1 + 0.00005 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + T2) ^ t - sz While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend B_Yield_ISMA = T2 End Function -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Dana DeLouis" wrote: While Abs(kw - Price) 0.00005 As a side note, it is a little unusual here because both kw & Price do not get changed in the loop. It appears it could cause an endless loop. Usually, one or both get change in the loop so that eventually kw-Price falls below .00005. -- Dana DeLouis Windows XP & Office 2007 "Dave F" wrote in message ... Very helpful, thanks. Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. "Jim Thomlinson" wrote: While...Wend is just one of the control flow structures. I personally prefer Do...Loop but there is nothing wrong with While...Wend. Check out this link on the different control flow structures... http://msdn.microsoft.com/library/de...7ecff00da4.asp -- HTH... Jim Thomlinson "Dave F" wrote: What does WEND mean in VBA code, e.g.: While Abs(kw - Price) 0.00005 T3 = T1 + (Price - k1) * (T2 - T1) / (k2 - k1) T1 = T2 k1 = k2 T2 = T3 k2 = (-Application.PV(T2, n, Cpn, 100) + Cpn) / (1 + t) ^ t - sz Wend Does it merely mean While End, sort of like End If? Dave -- A hint to posters: Specific, detailed questions are more likely to be answered than questions that provide no detail about your problem. |
#9
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"Dana DeLouis" wrote in message
... While Abs(kw - Price) 0.00005 It appears to me that kw could be a typo. Looking at the code, my guess is that it should be While Abs(k2 - Price) 0.00005 It appears to loop until k2 (Pv) calculation is reduced to a value close to Price. Since "2" is next to "w" on the keyboard, my guess is that it should be k2, and not kw. I seems that when Gord Dibben said to me that other day: That's why there is a great herd of us monitoring these groups. he wasn't kidding! These NG's never cease to amaze me! -- Sandy In Perth, the ancient capital of Scotland and the crowning place of kings with @tiscali.co.uk |
#10
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Hello,
Of course kw was a typo. The original source of the function: http://www.vbnum.com/download.asp?co...Bo nd%20(ISMA) He that will not use OPTION EXPLICIT must feel... Regards, Bernd |
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