Random Sample Out Rows Of Data From A Sheet
Oct 4, 2009
I've coded a macro that can randomly sample out rows of data from a sheet. This macro is used to sample out certain rows from a master sheet full of data (which has 48 columns) based on user names (a column titled LAST_UPDATE_NAME). For Example (ref. wkb attached), if for 5 users named Alastor, Catherine, Emma, Julie and Victor for whom i've to choose data from the Dump sheet.
I need to design a module in which if i input the no. of samples to be chosen against each name, then that many number of rows has to be chosen for that particular name and copied to a new sheet (probably such sheets can be renamed with the usernames). Also i want to consolidate the copied data from the multiple sheets and consolidate them to one sheet.
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Oct 10, 2007
I want to pull a sample of 15 numbers from column A, the catch is that the contents of column B cannot match once the sample is pulled. How do I do this.
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Feb 13, 2014
I am working on a sampling tool in Excel which is based on what a user enters into a column. The user enters observation codes (text) in column A beginning at row 2 and going down to however many they have. I already have formulas which determine the sample size needed based on the number of nonblank values in that column; the resulting sample size is in G4. I'm thinking that I will need to have a form with a button module to select the random sample from the values in col A. This way Excel isn't running the module while the user is entering the values. The resulting sample can be pasted into a separate column or sheet.
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Aug 14, 2013
im trying to create a simple random sample from my data set of size n=100 and then i need to repeat that step a 1000 times to make a new data set that i can transfer over to stata. Everything I have seen on the internet involves generating random numbers which isnt what i want. I need to be able to generate a random sample.
Currently my excel spreadsheet consists of 4 columns with 200 entries in each column.
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Dec 5, 2009
I have an excel sheet with the following sample data on it.
Name Age Sex Height
Ray 33 M 5' 8''
Sind 29 F 5'4''
Ralph 3 M 2' 1"
Ryan 1 M 1' 2"
I have managed to extract this info onto a form named Form1 which has 4 list boxes in which the above info is displayed in the same format.
To be more precise
Listbox1 shows all the Names,
Listbox2 shows Age
List box3 shows Sex and
Listbox4 shows height respectively.
What i want to do is, When i select an item on Listbox1, all corresponding enteries on Listbox2, 3 and 4 should also be simultaneously highlighted,
For example if I select the third data Ralph on the ListBox1, then ListBox2 should highlight 3,
Listbox3 should highlight M and
Listbox4 should highlight 2' 1" simultaneously.
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Mar 30, 2009
I need the selected rows to be displayed on a new sheet. The idea being that I have a quiz with hundreds of questions and I only want a random selection to appear when I execute the macro. I plan on hiding the original questions and only displaying the randomly selected ones.
Here is the original code from the previous post.
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Nov 5, 2009
Can anyone explain clearly (using layman terms) about how to go about randomly choosing specific number of rows from a set of autofiltered records?
For e.g., If there are 1000 rows of data in a worksheet and after applying autofilter to certain column(s) [one or more] say i get some 75 rows. Then how can x no. of rows be chosen where x can be input by the user or calculated based on a certain percentage? Say if out of these 75 filtered rows, 8 rows have to be chosen randomly - where 8 can be input by the user or also be calculated as 10% of 75.
Also, is it possible to choose these x records from the filtered set of rows without actually copying them to another sheet?
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Nov 10, 2009
I have been set a task to do and I wonder if you could point me in the right direction.
Task - extract 2000 emails from a 6000 email database
The 2000 emails have to be proportionate to the original database.
e.g.
The main database has the emails plus town and employee size ranges
Column A - Emails Column B - Town Column C - Employees
So if Column B states that 50% of the entire database is from one town, then my extracted emails must also have half from that town (1000).
Also there are around 5 employee ranges and so they need to also be proportionate to those percentages too in the final extraction.
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Sep 23, 2006
I have stored production data in Column A. I want 5 data randomly pulled from that column with click of a button. Would this Happen?. I have attached an excel sheet.
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Jul 22, 2014
I want to be able to paste the large amount of data I get each day into the first sheet in my workbook ("data dump" sheet), the data will be formatted in the way i have used in the example workbook.
I then would like to be able to just have to enter 2 values into columns A and B of "1st output" sheet (Label in A, and Item in B), then have it look up the data that corresponds to those 2 values that are both in the same row in the "data dump" sheet, and have it copy and paste all of the relevant data in that row into the row in the "1st output" sheet.
The data I would want excel to find and place for me in the first sheet is highlighted in yellow
As a way of keeping track of this every day, I then need the data from the "1st output" sheet, to be fed into the "2nd output" sheet. This sheet would have all of the peoples' names already in it, but would just need to look in the "1st output" sheet for references to these names. If one of the names pops up, I'd need the date shown in the row of that instance to be placed after their name. This will allow me to keep a log of how many times their name gets flagged up, as well as the dates on which it happens. Again, the data I'd need excel to look up in the "2nd output" sheet is highlighted in yellow.
If there was a way of having the 2nd sheet add new names it finds on the 1st output sheet, that aren't already referenced on the 2nd output sheet in column A, that would be amazingly handy if it could then enter that name into column A and start a new row for them
Example file :
Attachment 334122
Alternative link [URL]
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Jul 3, 2014
Currently, Im running a button macro. When this button is clicked, the table from "315 Employee Data" will copy the names from column C to "315" sheet B12 onwards.
Now, what i want is when I update the employee data on "315 employee data" sheet, I want "315" sheet to automatically match the names from "315 employee data", delete and add names when I add or remove employees from the column the next time i click on that button again.
After the above is achieved, when i add new employees,run the macro and it displays the updated list of names, I want "315" sheet column A to do automatic numbering.
I have attached the file for your reference.samplesample.xlsm
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Oct 8, 2009
I have a couple of spreadsheets that requires me to copy data from Sheet 1 that matches certain criteria to Sheet 2.
I have tried using posted VB codes that have been written for other people but they dont seem to work (this is probably to do with me not actually knowing what I am doing, as I am not sure what I should be replacing and what I need to be deleting etc out of the pre-written code )
I need to be able to search on column e in Sheet 1 for anything that has just h written in the cell and then copy all the rows that match into Sheet 2. I also would like to ensure that when it is copied it doesnt go in row 2 but maybe 4 or 5 as I have quite allot of headings.
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Jun 13, 2007
I have 2 columns of raw data. With
column one containing the document Names.
and column two containing the document titles
i.e
Column 1
Doc 1
Doc 1b
Doc 2b
Doc 3
Doc 10
Doc 11.5
Column 2
Manual 1
Manual 1
Manual 1
Manual 2
Manual 2
manual 3
Manual 4
I am looking to be able to reform this information on another sheet to look like this :-
Column 1
Manual 1
Doc 1
Doc 1b
Doc 2b
Manual 2
Doc 3
Doc 10
Manual 3
Doc 11.5
Manual 4
Now I have created an addional column on an other sheet which checks for the row number where a new manual appears. and I have made this look like the row I would like to insert.
The idea i have is to use the above Numbers and the row itself and insert it in to the formated report (working from the bottom though). With this doen for each manual name change.
the number of Documents per manual can vary....
how to write the marco for this
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Jul 30, 2013
I have a workbook, "Assessment District" with 3 worksheets. In worksheet "Original," I have 252 rows with columns A-V. I want to copy two coloumns "C" (range 6-252) and "N" (range 6-252) from the worksheet, "Original" into a new worksheet titled "Send" in columns A & B. I only want to copy the two columns "C" and "N" for each row, if column Q does not contain "beach town" or "freeway."
For example, row 6 contains beach town, so I wouldn't copy C6 and N6 onto "Send," but row 100 doesn't contain beach town or freeway, so I would copy C100 and N100 into "Send."
This is a workbook that would be updated annually.
I'm not skilled in VBA at all, but want to impress my supervisor where I'm interning.
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Aug 9, 2006
I have a 1500 row spreadsheet that will change every month. It's set up in three columns Name, Amount, Total. The Total column is supposed to hold the total of all the rows with the same name field. I.e.
4445-8889 12
4445-8889 8 20
5598-7785 10
5598-7785 10
5598-7785 20 40
The problem is that the number of identical named rows is different for each name and changes each month. I want to build a macro that will out the correct total in the last column of the last entry with the same name.
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Oct 7, 2011
How to do a sheet with random letters... I got this macro but is not working
Sub RandomLetters()
Dim RandomRange As Range, cell As Range
Set RandomRange = Range("C10:AG15")
For Each cell In RandomRange
cell.Formula = "=RANDL(A,M)"
Next
RandomRange.Value = RandomRange.Value
End Sub
The range is set. but the cell.formula is not... i want to set the macro to random the letters (N ,M, T, E, DS) without their being repeated at the same column is that possible???
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Apr 15, 2009
My sub is supposed to take the values from Sheet1 and paste them into 16x10 tables on Sheet2. However, for some odd reason, the loop is skipping some rows. If you take a look, there are 2184 values in Sheet1, but only 1368 end up in Sheet2...SKUs such as 518166,518167,510573,513746,513752 are just being skipped for no reason.
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Mar 23, 2012
I have 800 rows of patient information, I need to sample 70 patients. I used the Random.org randomizer to get my 70 patients. That randomizer only gives me the line numbers such as 1, 8, 23, 45, 70, etc. I then need to go to Excel and just pick out the patients on those lines I was given above. Is there an easy way in Excel to have my spreadsheet of the 800 rows and create a (simple) calculation that will pick out the line numbers that I need all at once, so I do not have to go thru manually and choose the data from row 1, 8, 23, 45 etc to make my new spreadsheet with only my sample patients on it. OR is there a easy way to pick 70 random lines from a spreasheet..
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May 11, 2009
I have an excel sheet with several thousands products.
I also have an excel sheet with hundreds of products that need to be deleted.
The excel sheet with the products to be deleted have a unique product model number to identify with.
I've been using the "Find" feature to query 1 product at a time. It works but it's slow. Is there quicker way to do this?
For example can I feed a list of Product Models to excel and tell it to delete the items?
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Mar 3, 2014
I have created a userform with multipage, has two page that add new record in a excel sheet. Data has a unique reference no.(TxtRef.Value) for each record. I am trying to add a button to load the added data for a specific record using reference no back to userform so that it can be updated and overwrite back to the sheet in the same row, So far it is adding new record correctly. I do not know how to populate all the fields of the of an existing record and overwrite it back to the same row instead of adding a new record. Below is my codes
[Code].....
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Feb 19, 2014
I need generating 40 rows (Columns of 17 (Columns A - Q) Random numbers (1 to 5) that will sum to specific values (60, 55..) in R Column, and to regenerate it on pressing any key.
The same has been done for one value in [URL] ..... but I need it for a set.
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Apr 6, 2009
I am copying various rows from one spreadsheet to another (sheet3) and would like to total one of the columns. The trouble is that since I don't know how many rows there will be I am having trouble inserting a formula that will work. I am sure that there must be a simple solution but I can't seem to find it.
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Jun 27, 2009
I need a macros to fill 2000 rows with unique random numbers from 1 to 19 in B2:T2001 area. Every row like this
14 11 12 7 18 13 19 5 6 16 9 4 8 15 1 3 10 2 17
Actually it's about random positions in rows for numbers from 1 to 19.
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Mar 3, 2009
How to insert the sample mean symbol, so that the "bar" is centered over x?
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Apr 24, 2013
I am working in excel 2007. I have been using the COUNTIFS function to pull out some summary stats from my data. For my data I have sample ID's which are a letter followed by a number e.g. A12, A20, A39, A50. I have 40 columns of variables I am looking at which for each sample ID have either a value of 0 or a numerical number. For each column, I want to count firstly any samples that are greater than 0 (i.e. they have a numerical value) AND if the sample ID differs. This is because I have multiple samples per ID and so I want to know how many different ID's have a numerical value.
Is this at all possible in Excel? I do not know all of the functions very well, so I cannot find anything that will allow me to look at differences in the samples ID.
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Jan 17, 2008
I am computing the average of anywhere from 5-10 numbers. When the numbers are not inserted there is nothing left in the cell. The problem is I get a value that is close to the average but not the real average. (Also the cells I am using are N37:Q41 for the first 5 samples which is constant the next 5 are not always constant W37:Z41) Here is the formula I am using:
=IF((W37="")+(W38="")+(W39="")+(W40="")+(W41=""),AVERAGE(N37:Q41),IF((W38="")+(W39="")+(W40="")+(W41=""),AVERAGE(N37:Q41,W37),IF((W39="")+(W40="")+(W41=""),AVERAGE(N37:Q41,W37:Z38),IF((W40="")+(W41=""),AVERAGE(N37:Q41,W37:Z39),IF(W41="",AVERAGE(N37:Q41,W37:Z40),AVERAGE(N37:Q41,W37:Z41))))))
I have the same problem with a standard deviation formula and the same group of numbers (I get something close but a few points off).
=IF((W37="")+(W38="")+(W39="")+(W40="")+(W41=""),STDEV(N37:Q41),IF((W38="")+(W39="")+(W40="")+(W41=""),STDEV(N37:Q41,W37),IF((W39="")+(W40="")+(W41=""),STDEV(N37:Q41,W37:Z38),IF((W40="")+(W41=""),STDEV(N37:Q41,W37:Z39),IF(W41="",STDEV(N37:Q41,W37:Z40),STDEV(N37:Q41,W37:Z41))))))
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Apr 16, 2009
How you do use excel to calculate a sample size using the population, error limit, confidence level and upper error limit rates?
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Oct 24, 2007
using the ttest formula function
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Aug 4, 2009
I have a sample of aproxomatly 30,000 records, and I am working to do some data analysis on it.
I am comparing multiple fields using sumproduct(), but if I go above two criteria, the calculation time becomes incredibly long. Is there a faster way to preform these large comparisons, or am I stuck watching my Excel lag out for 5 min every time I recalculate the sheet?
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Dec 3, 2009
I have a file that samples performance on a cpu. The output shows the sampling date and time in column A. This column changes depending on how long I run the file. No matter how long the column, I only want to pull out the sample date and time 20 times. So if I had data in column A with 300 rows, I want to divide 300 by 20 and pull those 20 numbers and put them in column B in chronological order. Same thing if I had 4000 rows in column A, I only want 20 samples.
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