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#1
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change nonworking day to friday
how can i change nonworking date from saturday&sunday to frinday&Saturday
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#2
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In what, the WORKDAY function, NETWORKSDAYS?
If it is NETWORKSDAYS, use =SUMPRODUCT(INT((E1-WEEKDAY(E1+1-{2;3;4;5;6})-C1+8)/7))-SUMPRODUCT(ISNUMBER( MATCH(WEEKDAY(holidays),{2;3;4;5;6},0))*(holidays =C1)*(holidays<=E1)) where C1 and E1 hold the 2 dates, hiolidays is a named range of holiday dates, and the array {2,3,4,5,6} should be an array of working days. -- HTH RP (remove nothere from the email address if mailing direct) "salim purayil" <salim wrote in message ... how can i change nonworking date from saturday&sunday to frinday&Saturday |
#3
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On Mon, 28 Feb 2005 10:08:25 -0000, "Bob Phillips"
wrote: In what, the WORKDAY function, NETWORKSDAYS? If it is NETWORKSDAYS, use =SUMPRODUCT(INT((E1-WEEKDAY(E1+1-{2;3;4;5;6})-C1+8)/7))-SUMPRODUCT(ISNUMBER( MATCH(WEEKDAY(holidays),{2;3;4;5;6},0))*(holidays =C1)*(holidays<=E1)) where C1 and E1 hold the 2 dates, hiolidays is a named range of holiday dates, and the array {2,3,4,5,6} should be an array of working days. Bob, In doing some testing of a VB routine for Workdays and Networkdays, allowing variable weekend days, I note that your routine seems to have inaccuracies under circumstances of negative Networkdays. For example, given your formula and: C1: 20 Dec 2004 E1: 07 Dec 2004 Networkdays = -10 Your formula = -8 --ron |
#4
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Hi Ron,
Good spot. I add 1 to the date in E1 and therein lies the problem. If E1 C1 I can add 1, else I need to subtract 1, to maintain the integrity. Revised version =SUMPRODUCT(INT((E1-WEEKDAY(E1+IF(E1C1,1,-1)-{2;3;4;5;6})-C1+8)/7))-SUMPROD UCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4;5;6},0 ))*(holidays=C1)*(holiday s<=E1)) -- HTH RP (remove nothere from the email address if mailing direct) "Ron Rosenfeld" wrote in message ... On Mon, 28 Feb 2005 10:08:25 -0000, "Bob Phillips" wrote: In what, the WORKDAY function, NETWORKSDAYS? If it is NETWORKSDAYS, use =SUMPRODUCT(INT((E1-WEEKDAY(E1+1-{2;3;4;5;6})-C1+8)/7))-SUMPRODUCT(ISNUMBER ( MATCH(WEEKDAY(holidays),{2;3;4;5;6},0))*(holidays =C1)*(holidays<=E1)) where C1 and E1 hold the 2 dates, hiolidays is a named range of holiday dates, and the array {2,3,4,5,6} should be an array of working days. Bob, In doing some testing of a VB routine for Workdays and Networkdays, allowing variable weekend days, I note that your routine seems to have inaccuracies under circumstances of negative Networkdays. For example, given your formula and: C1: 20 Dec 2004 E1: 07 Dec 2004 Networkdays = -10 Your formula = -8 --ron |
#5
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On Mon, 28 Feb 2005 20:30:52 -0000, "Bob Phillips"
wrote: Hi Ron, Good spot. I add 1 to the date in E1 and therein lies the problem. If E1 C1 I can add 1, else I need to subtract 1, to maintain the integrity. Revised version =SUMPRODUCT(INT((E1-WEEKDAY(E1+IF(E1C1,1,-1)-{2;3;4;5;6})-C1+8)/7))-SUMPROD UCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4;5;6}, 0))*(holidays=C1)*(holiday s<=E1)) -- Well, I can still get it to screw up. For example: StartDate Saturday, January 01, 2005 EndDate Thursday, December 16, 2004 Holidays Friday, December 24, 2004 Friday, December 24, 2004 Friday, December 31, 2004 Saturday, January 01, 2005 Sunday, January 02, 2005 Your Formula: -11 NetWorkDays : -10 ================================ I've been working on a VB Wrkday (and NetWrkDay)routine that allows, as written, a maximum of three defined weekend days. It seems to be giving answers consistent with Excel's Networkday and Workday function. Myrna helped with a routine that really sped up the NetWrkday routine compared with my initial attempt. Of course, it does not run as fast as the native routines, but for reasonable ranges, it might be adequate. ---------------------------------------------- Function NWrkDays(StartDate As Date, EndDate As Date, _ Optional Holidays As Range = Nothing, _ Optional WeekendDay_1 As Integer = 0, _ Optional WeekendDay_2 As Integer = 0, _ Optional WeekendDay_3 As Integer = 0) As Long ' Sunday = 1; Monday = 2; ... Saturday = 7 'credits to Myrna Dim i As Long Dim Count As Long Dim H As Variant Dim w As Long Dim SD As Date, ED As Date Dim DoHolidays As Boolean Dim NegCount As Boolean DoHolidays = Not (Holidays Is Nothing) SD = StartDate: ED = EndDate If SD ED Then SD = EndDate: ED = StartDate NegCount = True End If w = Weekday(SD - 1) For i = SD To ED Count = Count + 1 w = (w Mod 7) + 1 Select Case w Case WeekendDay_1, WeekendDay_2, WeekendDay_3 Count = Count - 1 Case Else If DoHolidays Then If IsNumeric(Application.Match(i, Holidays, 0)) Then _ Count = Count - 1 End If End Select Next i If NegCount = True Then Count = -Count NWrkDays = Count End Function Function WrkDay(StartDate As Date, ByVal NumDays As Long, _ Optional Holidays As Range = Nothing, _ Optional WeekendDay_1 As Integer = 0, _ Optional WeekendDay_2 As Integer = 0, _ Optional WeekendDay_3 As Integer = 0) As Date ' Sunday = 1; Monday = 2; ... Saturday = 7 Dim i As Long Dim TempDate As Date Dim Stp As Integer Dim NonWrkDays As Long Dim Temp As Long, SD As Date, ED As Date Stp = Sgn(NumDays) 'Add NumDays TempDate = StartDate + NumDays 'Add Non-Workdays Do While Abs(NumDays) < Temp SD = Application.WorksheetFunction.Min(StartDate + Stp, TempDate) ED = Application.WorksheetFunction.Max(StartDate + Stp, TempDate) Temp = NWrkDays(SD, ED, Holidays, WeekendDay_1, WeekendDay_2, WeekendDay_3) TempDate = TempDate + NumDays - Stp * (Temp) Loop WrkDay = TempDate End Function ------------------------------------- --ron |
#6
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On Mon, 28 Feb 2005 20:16:23 -0500, Ron Rosenfeld
wrote: On Mon, 28 Feb 2005 20:30:52 -0000, "Bob Phillips" wrote: Hi Ron, Good spot. I add 1 to the date in E1 and therein lies the problem. If E1 C1 I can add 1, else I need to subtract 1, to maintain the integrity. Revised version =SUMPRODUCT(INT((E1-WEEKDAY(E1+IF(E1C1,1,-1)-{2;3;4;5;6})-C1+8)/7))-SUMPROD UCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4;5;6} ,0))*(holidays=C1)*(holiday s<=E1)) -- Well, I can still get it to screw up. For example: StartDate Saturday, January 01, 2005 EndDate Thursday, December 16, 2004 Holidays Friday, December 24, 2004 Friday, December 24, 2004 Friday, December 31, 2004 Saturday, January 01, 2005 Sunday, January 02, 2005 Your Formula: -11 NetWorkDays : -10 ================================ I've been working on a VB Wrkday (and NetWrkDay)routine that allows, as written, a maximum of three defined weekend days. It seems to be giving answers consistent with Excel's Networkday and Workday function. Myrna helped with a routine that really sped up the NetWrkday routine compared with my initial attempt. Of course, it does not run as fast as the native routines, but for reasonable ranges, it might be adequate. ---------------------------------------------- Function NWrkDays(StartDate As Date, EndDate As Date, _ Optional Holidays As Range = Nothing, _ Optional WeekendDay_1 As Integer = 0, _ Optional WeekendDay_2 As Integer = 0, _ Optional WeekendDay_3 As Integer = 0) As Long ' Sunday = 1; Monday = 2; ... Saturday = 7 'credits to Myrna Dim i As Long Dim Count As Long Dim H As Variant Dim w As Long Dim SD As Date, ED As Date Dim DoHolidays As Boolean Dim NegCount As Boolean DoHolidays = Not (Holidays Is Nothing) SD = StartDate: ED = EndDate If SD ED Then SD = EndDate: ED = StartDate NegCount = True End If w = Weekday(SD - 1) For i = SD To ED Count = Count + 1 w = (w Mod 7) + 1 Select Case w Case WeekendDay_1, WeekendDay_2, WeekendDay_3 Count = Count - 1 Case Else If DoHolidays Then If IsNumeric(Application.Match(i, Holidays, 0)) Then _ Count = Count - 1 End If End Select Next i If NegCount = True Then Count = -Count NWrkDays = Count End Function Function WrkDay(StartDate As Date, ByVal NumDays As Long, _ Optional Holidays As Range = Nothing, _ Optional WeekendDay_1 As Integer = 0, _ Optional WeekendDay_2 As Integer = 0, _ Optional WeekendDay_3 As Integer = 0) As Date ' Sunday = 1; Monday = 2; ... Saturday = 7 Dim i As Long Dim TempDate As Date Dim Stp As Integer Dim NonWrkDays As Long Dim Temp As Long, SD As Date, ED As Date Stp = Sgn(NumDays) 'Add NumDays TempDate = StartDate + NumDays 'Add Non-Workdays Do While Abs(NumDays) < Temp SD = Application.WorksheetFunction.Min(StartDate + Stp, TempDate) ED = Application.WorksheetFunction.Max(StartDate + Stp, TempDate) Temp = NWrkDays(SD, ED, Holidays, WeekendDay_1, WeekendDay_2, WeekendDay_3) TempDate = TempDate + NumDays - Stp * (Temp) Loop WrkDay = TempDate End Function ------------------------------------- --ron Hmmm, it seems to work fine for normal weekends. It doesn't seem to work properly for Fri/Sat weekends and negative Networkdays; although the Workdays seems to calculate OK. I'm not going to work on it anymore tonight. --ron |
#7
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It will have problems with the holidays as well as the startdate is after
the enddate. I must admit I have never liked the fact that NETWORKDAYS returns negatives, so here is another version. It doesn't return the same as NETWORKDAYS because it doesn't return negative number of days, so it is agnostic as to whether C1 is the start or end date, which is how it should be IMO. If a negative sign is wanted, it could be added. =SUMPRODUCT(INT((MAX(C1,E1)-WEEKDAY(MAX(C1,E1)+1-{2;3;4;5;6})-MIN(C1,E1)+8)/ 7))-SUMPRODUCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4 ;5;6},0))*(holidays=M IN(C1,E1))*(holidays<=MAX(C1,E1))) -- HTH RP (remove nothere from the email address if mailing direct) "Ron Rosenfeld" wrote in message ... On Mon, 28 Feb 2005 20:16:23 -0500, Ron Rosenfeld wrote: On Mon, 28 Feb 2005 20:30:52 -0000, "Bob Phillips" wrote: Hi Ron, Good spot. I add 1 to the date in E1 and therein lies the problem. If E1 C1 I can add 1, else I need to subtract 1, to maintain the integrity. Revised version =SUMPRODUCT(INT((E1-WEEKDAY(E1+IF(E1C1,1,-1)-{2;3;4;5;6})-C1+8)/7))-SUMPR OD UCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4;5;6} ,0))*(holidays=C1)*(holid ay s<=E1)) -- Well, I can still get it to screw up. For example: StartDate Saturday, January 01, 2005 EndDate Thursday, December 16, 2004 Holidays Friday, December 24, 2004 Friday, December 24, 2004 Friday, December 31, 2004 Saturday, January 01, 2005 Sunday, January 02, 2005 Your Formula: -11 NetWorkDays : -10 ================================ I've been working on a VB Wrkday (and NetWrkDay)routine that allows, as written, a maximum of three defined weekend days. It seems to be giving answers consistent with Excel's Networkday and Workday function. Myrna helped with a routine that really sped up the NetWrkday routine compared with my initial attempt. Of course, it does not run as fast as the native routines, but for reasonable ranges, it might be adequate. ---------------------------------------------- Function NWrkDays(StartDate As Date, EndDate As Date, _ Optional Holidays As Range = Nothing, _ Optional WeekendDay_1 As Integer = 0, _ Optional WeekendDay_2 As Integer = 0, _ Optional WeekendDay_3 As Integer = 0) As Long ' Sunday = 1; Monday = 2; ... Saturday = 7 'credits to Myrna Dim i As Long Dim Count As Long Dim H As Variant Dim w As Long Dim SD As Date, ED As Date Dim DoHolidays As Boolean Dim NegCount As Boolean DoHolidays = Not (Holidays Is Nothing) SD = StartDate: ED = EndDate If SD ED Then SD = EndDate: ED = StartDate NegCount = True End If w = Weekday(SD - 1) For i = SD To ED Count = Count + 1 w = (w Mod 7) + 1 Select Case w Case WeekendDay_1, WeekendDay_2, WeekendDay_3 Count = Count - 1 Case Else If DoHolidays Then If IsNumeric(Application.Match(i, Holidays, 0)) Then _ Count = Count - 1 End If End Select Next i If NegCount = True Then Count = -Count NWrkDays = Count End Function Function WrkDay(StartDate As Date, ByVal NumDays As Long, _ Optional Holidays As Range = Nothing, _ Optional WeekendDay_1 As Integer = 0, _ Optional WeekendDay_2 As Integer = 0, _ Optional WeekendDay_3 As Integer = 0) As Date ' Sunday = 1; Monday = 2; ... Saturday = 7 Dim i As Long Dim TempDate As Date Dim Stp As Integer Dim NonWrkDays As Long Dim Temp As Long, SD As Date, ED As Date Stp = Sgn(NumDays) 'Add NumDays TempDate = StartDate + NumDays 'Add Non-Workdays Do While Abs(NumDays) < Temp SD = Application.WorksheetFunction.Min(StartDate + Stp, TempDate) ED = Application.WorksheetFunction.Max(StartDate + Stp, TempDate) Temp = NWrkDays(SD, ED, Holidays, WeekendDay_1, WeekendDay_2, WeekendDay_3) TempDate = TempDate + NumDays - Stp * (Temp) Loop WrkDay = TempDate End Function ------------------------------------- --ron Hmmm, it seems to work fine for normal weekends. It doesn't seem to work properly for Fri/Sat weekends and negative Networkdays; although the Workdays seems to calculate OK. I'm not going to work on it anymore tonight. --ron |
#8
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On Mon, 28 Feb 2005 22:26:01 -0500, Ron Rosenfeld
wrote: Hmmm, it seems to work fine for normal weekends. It doesn't seem to work properly for Fri/Sat weekends and negative Networkdays; although the Workdays seems to calculate OK. I'm not going to work on it anymore tonight. --ron Well, another Hmmm. Now with more sleep. It seems my debugging method was flawed and that my routines do work properly, at least for Sat-Sun and/or Mon-Tue. So I guess I'm satisfied at this point, although further testing would be a good idea, too. --ron |
#9
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On Tue, 1 Mar 2005 11:03:43 -0000, "Bob Phillips"
wrote: It will have problems with the holidays as well as the startdate is after the enddate. I must admit I have never liked the fact that NETWORKDAYS returns negatives, so here is another version. It doesn't return the same as NETWORKDAYS because it doesn't return negative number of days, so it is agnostic as to whether C1 is the start or end date, which is how it should be IMO. If a negative sign is wanted, it could be added. =SUMPRODUCT(INT((MAX(C1,E1)-WEEKDAY(MAX(C1,E1)+1-{2;3;4;5;6})-MIN(C1,E1)+8)/ 7))-SUMPRODUCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4 ;5;6},0))*(holidays=M IN(C1,E1))*(holidays<=MAX(C1,E1))) Well, I agree with you about NetWorkDays returning negatives, but I chose to do it that way in order to mimic the Excel function; figuring that if one did not like it, one could use the ABS function. By the way, I believe my VBA routines work properly. My problem last night, in debugging, turned out to be an improper model for the debugging process. I have yet to check it with three weekend days, and with non-contiguous "weekend days", however. So far as your routine is considered, there still seems to be some inconsistencies: Given the following Data: StartDate Monday, January 03, 2005 EndDate Thursday, December 23, 2004 Holidays Friday, December 24, 2004 Friday, December 24, 2004 Friday, December 31, 2004 Saturday, January 01, 2005 Sunday, January 02, 2005 Your formula returns 5 for an Enddate of either December 27, 2004 or December 23, 2004. Networkdays (and my UDF) return -6 or -5 respectively. --ron |
#10
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IIRC, the OP said that he wants just two weekend days, but they are Friday and
Saturday instead of Saturday and Sunday. If the start date is in A1 and the end date in B1, and the list of holidays in a named range Holidays, =NETWORKDAYS(A1+1,B1+1,Holidays) will work for this problem. It "tricks" Excel by shifting all dates ahead 1 day of the week, so a "real" Friday is seen as a Saturday by the function (and hence a day off), and a "real" Sunday is seen as a Monday (and hence a workday). Of course you must add 1 to each of the dates in the holiday list, too. That might be accomplished with a parallel column that adds 1 to the date to the left. This 2nd column would be used in the calls to the functions involving workdays. Or (I haven't tried this), you may be able to use an array formula: =NETWORKDAYS(A1+1,B1+1,Holidays+1) Of course if you are dealing with a 4-day workweek, you need VBA or a more complicated worksheet formula. On Tue, 1 Mar 2005 11:03:43 -0000, "Bob Phillips" wrote: It will have problems with the holidays as well as the startdate is after the enddate. I must admit I have never liked the fact that NETWORKDAYS returns negatives, so here is another version. It doesn't return the same as NETWORKDAYS because it doesn't return negative number of days, so it is agnostic as to whether C1 is the start or end date, which is how it should be IMO. If a negative sign is wanted, it could be added. =SUMPRODUCT(INT((MAX(C1,E1)-WEEKDAY(MAX(C1,E1)+1-{2;3;4;5;6})-MIN(C1,E1)+8)/ 7))-SUMPRODUCT(ISNUMBER(MATCH(WEEKDAY(holidays),{2;3;4 ;5;6},0))*(holidays=M IN(C1,E1))*(holidays<=MAX(C1,E1))) |
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