Speeding Up Vba Code
Jul 17, 2007
I've been working on cleaning up some code that copies particular information from one sheet (as the original must remain unedited) and then edits out irrelivant information.
However I've noticed that my "before" code moves far faster than my "after" code, which is odd considering that I've cleaned out a lot of excess code and the end results are the same.
I attach an example of my old fast code and my new slow code - can anyone advise where I have gone wrong ? Run the fast code first and then the slow one - you'll see the difference!
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Jul 16, 2007
I've been working on the following code and need to find a way to speed it up.
The premise is that I have a list of columns (From C2 to potentially EH and beyond) and these columns will contain the values Y, N, end or nothing. I'm looking for the quickest way to zap along the columns and delete all that have an N and to stop when end or "" is reached.
There are 2 versions as I'm not sure which one is best ...
Range("B2").Select
LastColumn = Range("A1").End(xlToRight).Offset(, 1).Column
For k = 2 To LastColumn
ActiveCell.Offset(0, 1).Select ' right 1
If ActiveCell.Value = "Y" Then Next k
End If
If ActiveCell.Value = "N" Then
ActiveCell.EntireColumn.Delete 'If employee has no sickness then delete column
ActiveCell.Offset(0, -1).Select
End If
If ActiveCell.Value = "end" Then Exit For
If ActiveCell.Value = "" Then Exit For
Next k
or a longer version
StripSickness:
Range("B2").Select
ActiveCell.Offset(0, 1).Select ' right 1
PrintView = ActiveCell.Value 'Y/N whether employee has data
If PrintView = "Y" Then GoTo StripSickness
If PrintView = "N" Then GoTo NotNeeded
If PrintView = "End" Then GoTo Complete 'last column shows "end"
If PrintView = "" Then GoTo Complete
NotNeeded:
ActiveCell.EntireColumn.Delete
ActiveCell.Offset(0, -1).Select
GoTo StripSickness 'once employee is deleted, go back to stripsickness process
Complete:
Range("a1").Select
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Mar 13, 2008
This may be a long shot, but I've been working on a macro today which runs a few Vlookups, does some copying and pasting and some re-aligning....basically nothing too complicated. The Vlookup is looking through approx 45,000 records and returning about 200 - 300 on average, this info returned is company name, address, contact info etc etc.
This macro is taking a ludicrously long time to run, I've checked through and removed any coding that I think is unnecessary without altering the final outcome of the macro.
It still takes ages. Has anyone got any ideas why this may be, or any tips of speeding it up?
I have a brand new computer, dual core processor, 2 gigs of ram etc so it shouldn't be performance of the machine slowing it down, and I ran it with the least applications open that I can (I'm at work so can't close everything, but none of the other applications are memory hogs or anything). I'm running on Office 2003 on Windows XP.
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May 13, 2008
I am running a rather large simmulation where I have 12 for loops with each running between 0 and 100% with variable steps and the where the sum of the 12 variables has to sum to 100% and sometimes combinations of the sums of a few of the 12 have to sum up to specific values. That part works, now I am trying to get this to run faster.
Question:
Is there a different design that might be able to run this process more efficiently?
If not, is there a way to speed up the process by letting the computer know that all these variables are between 0 and 1 (or 100%) and that I only need 3 digits after the decimal if the value is in % form?
(the only problem with the rounding or cutting off the decimals at the end that I can think of is that it will only speed up the process a bit but will also make the summing upto 100% or any other value difficult)
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Jun 28, 2007
I need help with speeding up my macro. I have been building this using alot of the recorder and the maco is just horribly sluggish. I don't know if it is possible, but it seems like it is. I need the macro to obviously work the same way. The way it has been recorded, the order of operation is important. But if any one knows how to do this better it would be a huge help. The slowest part is during the insertion of the formulas into col. J,K,&L takes like over 7min -- Macro does work perfect though.
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Aug 20, 2007
first, id like to thank the board for the help on setting up an array or ranges.
ive been able to get my code to work but its painfully slow...if anyone had any recommendations on speeding it up would appreciate it...i was playing around with using formulaarray instead of writing and reading the data on each loop but cant get it to work...and i'm not really even sure thats the right way to go.
i copied the entire code below...what i was doing was taking 8 time series and looping thru each one to calculate some basic statistics...i ran the function EDFlyRateFromPrice to calculate another series of data which i then run the standardize, max and min functions on.
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Aug 23, 2007
This code is pretty slow if most rows have to be hidden. I'm certain there is a faster way to do this but I'm not seeing it.
What am I doing with
For each row from 12 to 236 I'm looking to see if there is data in any cell in columns A:F, H, & J. If not, I hide the row. I'm starting at row 236 and working up to 12 continuing to hide rows until I find data or I reach row 11. As soon as any row has data or row 11 is reached the the procedure ends leaving all remaining rows visible ...
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Jun 23, 2008
This part of my macro can be improved as it runs through over 100 sheets and takes a while?
Sheets.Select
For Each sh In Worksheets
With sh.PageSetup
.Zoom = False
.LeftFooter = "&F" & Chr(10) & "&A"
.CenterFooter = "&P of &N"
.RightFooter = "&D"
.FitToPagesWide = 1
.FitToPagesTall = 1
.LeftMargin = Application.InchesToPoints(0.15748031496063)
.RightMargin = Application.InchesToPoints(0.15748031496063)
.TopMargin = Application.InchesToPoints(0.393700787401575)
.BottomMargin = Application.InchesToPoints(0.354330708661417)
.HeaderMargin = Application.InchesToPoints(0.511811023622047)
.FooterMargin = Application.InchesToPoints(0.196850393700787)
.TopMargin = 1
.BottomMargin = 1
.Orientation = xlPortrait
End With
Next sh
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Aug 27, 2009
Ive found a few ways to speed up the macro in my workbook thats taking about 40 minutes to process usually.
One way - Press Escape and it goes about twice as fast! - Wy does it do this?
Another way - Inserting these lines into the code -
Application.Calculation = xlCalculationManual
Application.Calculation = xlCalculationAutomatic
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Mar 4, 2014
I am putting together a workbook which calculates a rota for 5 days that shows overall headcounts every 15mins.
It currently has 12672 cells containing SUMIFS.
But this takes a very long time to calculate.
Is there a faster / more efficient way for me to approach this task?
Can I attach the workbook so you can see what I mean?
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Jul 14, 2008
Delete rows where column A and B are duplicated.
However, this runs extremely slow. I had to stop it after about 10 min, as it only got to about row 1000 of 20,000.
Sub Delete_Dupes()
Dim rw1 As Long: rw1 = 1
Dim rwx As Long: rwx = rw1
Dim stepx As Integer
Dim co1 As Integer: co1 = 1
Dim co2 As Integer: co2 = 2
Dim bool1 As Boolean
Dim bool2 As Boolean
Dim bool As Boolean
Dim count As Integer
count = 0
Do Until Cells(rwx, co1) = ""
stepx = 1
If rwx > rw1 Then
On Error GoTo NewCrit
bool1 = IsError(Application.WorksheetFunction.Match(Cells(rwx, co1), Range(Cells(rw1, co1), Cells(rwx - 1, co1)), 0))
bool2 = IsError(Application.WorksheetFunction.Match(Cells(rwx, co2), Range(Cells(rw1, co2), Cells(rwx - 1, co2)), 0)).................
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Jan 15, 2007
Did not want to hijack Jonny's thread about ways in which to update and streamline code to make it run faster. The update speed of my first attempt at a macro is woefully slow - 5 minutes for 2.5K records. I was wondering if some of you more knowledgeable folk could look at my code and make suggestions as to how it could be modified to run faster.
When I ctrl-break out of it I usually end up in a private sub that concatenates columns A & B in Column C (see below). When it resorts the database it must keep triggering this concatenate sub which (I think) is slowing things down.
Concatenate Private Sub:
Option Explicit
Private Sub CommandButton1_Click()
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count > 1 Or IsEmpty(Target) Then Exit Sub ......................
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May 22, 2014
I want to filter 4 worksheets, but it takes a lot of time, something like 5 seconds, I need it to be at least twice faster.
I'm using this formula: [Code]......
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Mar 14, 2013
1. I need to paste data that is copied from an internet window into sheet1 without selecting the cell so that I can continue working on a data in sheet5. The macro prevents me from editing sheet5 in an orderly fashion because when it goes to paste the data into sheet1 it selects the cell in sheet1 interupting what I am trying to manually do with the data in sheet5. How to paste data into a cell withou selecting the cell so that my program stops interupting what I am doing in a different sheet?
2. My macro is meant for real-time defect monitoring in a production facility. The macro opens an IE window that contains the defect occurences, copies the data, pastes it in sheet 1 then sheets2 and 3 analyze the data, closes the IE window, and then waits for a time period before repeating the process. This macro is so slow though that it is hard to work on this file while the macro is running. How to run the macro in the background and speed it up so that I can continue working on Sheet5 of the file while the macro repeats itself over and over again? Here is my code.
The variable website is determined by earlier parts of the code that direct the macro to a specific network website.
Sub Half_Hour_Data
1
'Open Internet Window and Navigate to Website
Set myIE = CreateObject("InternetExplorer.Application")
myIE.Navigate Website
myIE.Visible = True
Application.Wait Now + TimeSerial(0, 0, 10) needed to wait until the page loads
[code]....
Is there a way to speed up the macro by removing the timeserials and just telling it to continue when the task is complete. Then run the whole thing in the background so I can work on another sheet while this program runs?
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Jul 7, 2009
i'm working on floyd algorithm macro for a project,
problem is, the spreadsheet matrix is huge, it's a 1043 x 1043 spreadsheet
And this is taking wayyy too long, i've been waiting for almost 2 days already..
here's the file :
http://ifile.it/6v2j39f
(You start the macro using "run" command in "input" sheet)
So is there any way to speed it up?
Or if anyone got a supercomputer, could you help me process this? :p
I'm thinking about changing the 10^5 value into infinite value, but i can't find a way to display infinite value..
And here's some reference for Floyd's algorithm,
http://ifile.it/12p5zle
I have tried to split the algorithm to make it process one iteration at a time, but i've been waiting like 2 hours with no result,
and that's for 1 iteration, can't imagine how long it takes for 1043 iterations
You can do this by deleting the.
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Jan 27, 2009
I use excel 2002 but some of my office are on 97, i want to add a small workbook open event code which works for me but debugs for the others?? The code is basically, go to a tab, on that tab and that range sort..
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Feb 8, 2007
I've developed a little software using Excel Macros & VB. To prevent people from accesing the code I protected the code blocking it from visualization. It seems not enough as an acquaintance of a friend cracked it in 25 minutes. Or so he says. So I'd like to know if there is a better way to protect the font code.
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Mar 9, 2013
I have an excel file having part code,name,vendor and Qty ( Quantity ).
My problem is that I want to apply an excel formula to pick up that vendor code who have highest Qty of a part code.The condition is that S.No.should not be disturbed.This file is so large,but here I have taken an example,
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May 12, 2009
I am dealing with several very large spreadsheets using VBA to do various things. I found that my code worked well, but was taking a long time to run. The biggest time consumer was my use of the AutoFilter features. I have since turned calculations to manual before my code runs and set it back to auto when my code is done running. What are the potential consequences of my turning calculations to manual and then back to auto?
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Dec 6, 2012
I have previously used the following code to successfully pull out IE webpage source code for string manipulation.
Its a crude example to demonstrate the principle:
Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Public IE As Object
Sub Sample()
Set IE = CreateObject("InternetExplorer.Application")
IE.Visible = True
[Code] ......
However when I substitute in a Google websites address into the IE.Navigate command, the code runs to the "Source_Code = IE.document ...." line then flags up a Microsoft Visual Basic error. "Run-time error '438': Object doesn't support this property or method"
The webpage that I am trying to access is a confidential company site, so you won't be able to access it yourself, but starts with [URL] ......
The one thing that I have noticed about this website is the Privacy Report icon in the lower right status window (Picture of an eye with a restricted symbol in front). I don't know whether this is the cause of my problem, or purely an incidental observation.
Is there something peculiar with Google sites that means that the source code cannot be extracted in general, or is this an issue specific to my site ? Does the Privacy Report icon have any relevance, and if so how do I switch that off ?
Using :
MS Excel 2010
IE Explorer 8.0
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Aug 1, 2013
My company has files that are already in use. I don't know too many details about how they work, but somehow saving the file will screw it up and my boss has to go back and reset something or other to correct it. Obviously it's connected to some other software somewhere. The code below will block Save and Save-As. BUT how do I get the file to hold onto the code without actually saving the file after the code is added (since the file shouldn't be saved)?
VB:
Private Sub Workbook_BeforeSave(ByVal SaveAsUI As Boolean, Cancel As Boolean)
If SaveAsUI = False Then
Cancel = True
[Code].....
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May 13, 2009
I have some buttons in different sheets in an excel file, each button has its own code, that is the reason I can not move the code related to each object to another location (sheet or module).
And I have one piece of code in Module1 (Auto_load) in order to execute automatically this routine every time file is opened. Inside "auto_load" routine I initialize some values of some check buttons,options buttons and positions of some objects in diferent sheets, but I can not pass the value of variables between Module and Sheet's code even when I declare as public variables and/or function.
I have the following structure: ...
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Jul 24, 2009
I'm trying to write a VBA script which will delete all rows in my Excel spreadsheet where Column I (which contains a status code) does not contain the word "Completed".
At the moment, I'm doing this the other way round: my script is able to search for entries in Column I which contain the status codes "Pending", "Awaiting Authorisation", "In Progress" etc and delete them. The idea is that when all those rows are deleted, I'll only be left with rows which have a status of "Completed". This works fine at the moment. However, the concern is that if a brand new status code is added to the data file, my script would be unable to pick it up and delete it. This is a small sample of the code I'm currently using (which deletes all the rows with statuses other than Completed):
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Jul 30, 2009
I am trying to determine how to get the code below to fire whenever cell J10 is populated and do nothing when cell J10 is not populated but I can't quite get it. (Cell J10 is manually changed and is not changed based off of a formula)
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Jul 25, 2014
Is there a standard way to organize sections of code with code tags? Due to the nature of my work, there is a lot of documentation involved. And, my spreadsheets rely heavily on VBA. These code tag sections will be going into a design specification, so that there is a layer of traceability from the document to the program. These are the general sections or item numbers that I've come up with.
1. Dimensions and Variables
2. Data
3. Processing the Data
4. Rules of analysis
5. Analysis
6. Formatting
I guess I'm looking for something standard like UML diagrams for DFDs, but with tagging code to break them up into sections?
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Feb 2, 2009
I am using the code below that I got off of these forums to email a particular sheet in my workbook, but I need to strip all of the VBA code and the command button from the sheet being sent.
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Feb 6, 2009
Can someone explian to me this line of code in eglish specially after the .Count /14-1
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Dec 17, 2008
I have a macro that, when run, needs to read the contents of cell B5, and run the code that it contains.
Cell B5, for example, would contain the text:
Range("B13").Formula = "SUM(D12:D14)"
I need a macro to "execute this code", as if it were in the macro itself.
I have assigned the above to a variable, but am not sure how to execute it.
EG.
Dim the_calc
the_calc = Range("B5").value
Now, how do I run the_calc ?
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Apr 3, 2014
I have problem to change text code into numerical code using macro. i have data contain text code and i would like to convert it into numeric . each text code has dedicated numerical code for example I have 4 fluids with text code text code:
FW = Fresh water
SW = Saline eater
CW = connate water
MW = Meteoric water
numeric code as follow
FW=1
SW=2
CW=3
MW=4
I would like to convert the text code into numeric code, it is easy if using excell , but it is routine job for me , i need to create macro to be more simple .
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Sep 9, 2009
I am now trying to combine 2 sections of code but being a complete VBA novice I'm stuck, where should the second Sub go so that it works,
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