Identifying Duplicates In List
Aug 6, 2009
Here is the deal I have 4 columns. Each line gives you the following information:
The Id is the record number, Code_Name is a code for each Fox in the study, date and area is a sub area in a bigger grid. Basically I have an area divided by squares and every time a marked fox enters in one of my squares a new line in the data is created. What I won’t to know is if a fox when in my area of study will return to the same squares or not.
ID
CODE_NAME
Date
Area
Logical
116
SSS1
02-Jan-09
1A1
273
RRR1
02-Jan-09
2A2
2959
BBB1
02-Jan-09
1B1
2959
What I’m trying to achieve is a 5th column were ill get a logical value of TRUE or FALSE if, for each fox in the next available record a fox went back to the same square or not.
So if you check for the fox RRR1 I have 2 records one in 2 of January in area 1A1 and a second in 7 of January in the same area. For the Fox BBB1 you will see that she was always in different areas and for CCC1 she only came back to one square.
The problem is I have over 400 fox’s and 12000 records and I’m trying to get a way of doing it automatically.
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Nov 30, 2009
I would like to identify duplicates in a list using conditional formatting in Excel 2007.
I have tried choosing to identify duplicates using the formula that I have found on many threads throughout the message board:
=COUNTIF($A$1:$A1,$A1)>1.
This function works up to 15 characters in a cell, but Excel seems to be treating all digits after the first 15 as the same, resulting in a "fuzzy match" where I want an exact match. Many of the values in my list are 18 characters long, in text format to prevent rounding.
I've noticed that Excel treats the 18-characters values the same way when sorting; for example, it treats these two values as the same:
'234567891011121314
'234567891011122413
Is there a way to force Excel to examine those last four digits for the purpose of sorting & identifying duplicates?
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Feb 9, 2010
I have attached a sample sheet which deals with property sales data, in reference to a two-part question.
1. If the row has two, or more, rows share the same value in column 'E', it needs to be identified with a 'Y' in Column G. In looking through old threads, this seems possible, though I could not find and answer I could 'bend' to work. If this is possible, can the following be included?
2. If two or more rows share the same value in column 'E', list the identifiers (value in Column A) for the others in Column H, separated by commas "," or slashes (preferred) "/".
ie.
"00370600000700 'NICHOLLS JOHN W & CARLA R 11/27/2000 85000 '260647 W Y '00370600000800" and
"00370600000800 'NICHOLLS JOHN W & CARLA R 11/27/2000 85000 '260647 W Y '00370600000700" or
"'00370500000801 'FRAHM FREDERICK/ERIK/KRYSTYNA 06/17/2004 110000 '288904W Y '00370500000802/'00370500000803"
The sample sheet attached includes 26 rows of data with several 'doubles' and one 'triple' 'duplicates'.
Please note that in the 'real' file, it has slightly less than 200,000 rows and I have seen 'dupicates' up to 40 with the same value in Column 'E'
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Jul 18, 2012
I have organized account numbers from two systems onto a spreadsheet, with numbers from System 1 arrayed in Column A and numbers from System 2 arrayed in Column B. I need to evaluate the numbers in both columns and isolate the numbers that are NOT DUPLICATES across the two systems (Columns A and B) and return a list of non-duplicate numbers in Column C. Here is what the table would look like:
System 1
System 2
Non-Duplicates
173
215
173
[Code] .......
What is the best approach to use?
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Feb 11, 2014
I am involved in a software conversion that is taking 4 full time folks over 5 weeks to clean up and assign an alpha-numeric sequential number to each vendor, client. Each scrubber is reviewing an excel spreadsheet containing the names, addresses, FID, telephone, etc. of our vendors and customers. This information is being pulled from 2 separate sources. We are assigning a BP # to the main office location and not retiring that one. then we go on to identifying the dups. All dups get a Y to be retired, but if they have a different address then the main one, we place a Y to bring that address over under that BP#.
Ultimately, we end up with 2 systems combined into one dumping all old numbers assigned and giving each vendors, customers, etc. a new BP# that may have muliptple addresses.
How can we assign a alpha numeric number without going through each individual line...over 900,000 of them to do. Key is to identify duplicate addresses and duplicate names. Some names might be RK Electrical or Robert King Electrical but the address will be duplicated usually.
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Sep 3, 2008
I have a list of variables created by a user like this:
BAND ID START END
Band1 06:00 08:59
Band2 09:00 15:59
Band3 16:00 17:59
Band4 18:00 22:30
Band5 22:31 24:29
Band6 24:30 05:59
Seperately I have data from a third party like this:
DATE TIME VALUE
18/05/08 17:22 10
19/05/08 02:15 1
20/05/08 07:14 5
20/05/08 21:36 15
20/05/08 25:43 1
21/05/08 19:15 15
22/05/08 18:26 16
22/05/08 24:59 2
etc.
I need to be able to identify which BAND ID belongs to each TIME in the list so that I can sum the VALUE figures for each BAND ID (e.g. the first time given,17:22, would belong to Band 3). have tried using LOOKUP but I can't seem to get it to work. Additionally, I have a problem with the 30 hour clock. Would I have to stick to a 24 hour clock? This would mean that I would have to find each time from the list that was between 24:00 and 05:59 and allocate it to the previous day because it is important to keep the values that I ultimately derive in the right day of the week.
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Dec 22, 2013
I have a number of workers in one column and how many dvds they have sold for the week in another column. how would I automatically identify the worker from the worker list who has sold the most dvds in that week? is there a formula for this?
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May 14, 2014
I have a cell with a long list of phrases all separated by commas.
So it would appear, chicken, beef, steak, soup, fish
I want to create a rule in a cell to identify if one of those phrases comes up - so if chicken comes up then a 1 would appear.
To make it interesting is it possible to grab two words from the cell, so grab the words chicken and beef from a mass of words in one cell and bring it across.
I have these cells which contain huge amount of text and preferences and I am looking to identify these entities on if they contain these words.
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Jul 30, 2009
If I have a list in Collumn A such as:
1
1
2
2
3
4
5
5
6
6
Is there a simply excel function I can use so that in collumn B I return only the unique results. That is, collumn B will look like this
1
2
3
4
5
6
????
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Oct 28, 2009
From another thread I got this formula placed on B5:
=NETWORKDAYS(EOMONTH(B4,-1)+1,EOMONTH(B4,0),Holidays)
his generates the number of working days for that month (regardless of the date on B4) that exclude Holidays listed under the range "Holidays".
I also got this code (Credits to XXXX)
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Apr 18, 2013
I have my dummy data, and I have (what I think) is how I want the data to be shown. My friend uses Google Sheets, but I prefer Excel. I am trying to convert the code because I am a stickler for excel. Typically I can convert codes some easily, but this is way beyond me.
For Column A: I want to create a list on sheet 'Setup!' based on ids!D2:D="yes". If that list has duplicate entries, I would like only the first entry to show up, but for the next entries I would like the cell to be blank. (this is important for the next step) For Column C: I want to have the corresponding dates go with the name entry. For Column D: I want to have the notes go with the corresponding date entry. (I believe I can manipulate Column C's code to do Column D myself).
I am also going to upload a data sheet, and an expected results sheet.
unique list.xlsx
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Jan 9, 2014
I am working on an email marketing project and i have a small problem. I have two different email list. One (List A) is a large list of potential leads. The other (List B) is a list of leads we are not supposed to market to. I need to delete every lead on List A whose email address is also in List B, so that we do not send unwanted emails to our clients.
The best way i have to do this so far is to go through line by line, which is very impractical.
In case it matters here is out list format. Each list has 10,000 + leads. Each lead occupies a row. The row stretches across 13 columns and each column holds a different variable about the lead (names, state, email address).
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May 27, 2014
Eng list.xlsx
The attached file (a copy of my main one) has a list of our engineers, and what stock they carry. The stock parts are the 64, 65, 66... numbers.
I need to create a list from this (as underneath the main table), for all instances where there is a 'Y' in the columns next to each engineer. So if an engineer has 3x pieces of stock, they need to appear in the list 3x times. If they have 1x piece of stock, they appear in the list once.
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Nov 28, 2007
I have a list of data which looks like this
Column B
Name
---------
Jones, Bob
Jones, Bob
Jones, Bob
Smith, Mike
Smith, Mike
Smith, Mike
Calai, Dave
Calai, Dave
Calai, Dave
Etc...
What I want to do is take the entire list and create a distinct list that I can use in a named range then use a validation list to have a drop down within a different tab.
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Jan 7, 2010
Is it possible to set conditional formatting to highlight any days which are saturday and sundays?
I have long long list of dates in the 17/12/2009 format, I need to be able to quickly see which dates are weekends.
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Dec 27, 2013
This is what I have and it go down to 200 names.
Andrew
Andrew
Andrew
Constance
Constance
Constance
Curtis
[Code]...
This is what I am looking for a formulas that will do this take out the dup's (Not Conditional Formatting)
Andrew
Constance
Curtis
Greg
Pauline
[Code]....
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Nov 9, 2009
I need to check a list of names to see if there are duplicate entries.
At the bottom of the list I would like to count the number of duplicates.
In the list I want conditional formatting to highlight cells where the duplicate appears.
Using Excel 2007.
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Oct 13, 2006
I need to identify duplicates in a list and have the foilowing formula:
=IF( COUNTIF(range1,A2)>1,"Duplicate","")
This works ok but i have a further condition which i dont know how to factor into the formula. I think i could write some vba to determine the dupes but i was hoping to avoid this as im sure it will take me an hour or so. Duplicates are identified at the moment as being identical numbers in column "amount", i now need to specify duplicates as being identical numbers in this range where there is at least one row with no pay date filled in in col "paydate"
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Jan 11, 2007
I was wondering if there is a formula or a vba code to return each number once from a list.
For example I’ve got a list with app. 500 rows and maybe 80 different numbers in there, so one number could be 50 times in the list, another number maybe just once. Is there a formula, which returns me each number once?
Can’t think of any, or do I have to use a vba code be get the information?
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Apr 3, 2014
I have data in the form of a table. For example a list of duplicate names, each of these names have a corresponding date (lease expiry date). The problem is that the duplicate names have varying dates. So the remove duplicates function does not work because i need to remove the duplicate names with the older dates. I want the latest dates to remain behind.
Data Currently: Solution should be:
Sue1/3/2014Mike8/8/2014
Jay25/4/2013Sue1/3/2014
Jay25/4/2013Jay25/4/2013
Mike8/8/2014
Mike8/8/2014
Sue1/3/2014
Sue25/6/2012
Sue1/3/2014
Sue5/7/2012
Jay2/2/2011
Mike5/5/2010
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Apr 3, 2014
I have a list of what we call "model codes" which are is a similar format to "DFS41FC57DD728NCWRY3"
The list could be 6000 rows but may contain hundreds of duplicates and may only contain 50 different model codes
I am looking for a formula that will populate a new column (B in the example below) with only the individual codes (unfortunately the xls example I created wont upload)
COLUMN A COLUMN B
DFS41FC57DD728N3SRY3 DFS41FC57DD728N3SRY3
DFS41FC57DD728N3SRY3 DFS41FC57DD728NCWRY3
DFS41FC57DD728N3SRY3
DFS41FC57DD728N3SRY3
DFS41FC57DD728NCWRY3
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Jan 12, 2010
I have a list of objects:
A
B
C
D
X
D
A
F
G
H
I know how to get a unique list. How do I identify those that are in the list more than once and how many times it is in the list?
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Jul 27, 2009
I have a sheet called "Usage Data" and in that sheet Column A is called "DTL_LOC" (Warehouse #)
I need to pull all data from this column and create a list with no duplicates. Data is both Text & Numeric.
I need to use this information in a Validation List on my "Inventory" sheet in C1
The list is currently located in L3:L102 on the "Inventory" sheet. However this list may increase or decrease as the company grows.
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Feb 23, 2006
I have a list of Dates in Col. A
Column B contains both numerical and text values.
I need to define a value in column B, and create a list of the dates
that these occured on, on another sheet. Auto filter doesn't work
because there are several different columns. If I try to use it I also
get the values in the other columns.
A B
1/2 8
1/3 4
1/4 Vac
1/5 8
1/6 7
1/7 Vac
1/8 8
Value needed = Vac
Solution 1/4
1/7
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Feb 28, 2007
I am confident the answer is no, but is there any formula / combination of formulae that will seek out unique values in a list of duplicates (just like filtering unique records only)?
I have a list of many duplicating sales people and I want to just create a column on another sheet that automatically sorts out the unique values (then I will sum their sales numbers with the SUMIF formula).
(By the way, the reason I just don't use the filter function is because the list always changes so I would need to keep applying it.)
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Oct 2, 2008
I am trying to work out how I can assign a sequential value to sets of duplicate data within a list. i.e. where I have duplicates in a list I want each of the duplicates (that are in the same set) to have a sequential number assigned and for that to start from 1 each time it discovers a new set of duplicates.
RED
GREEN
YELLOW
PURPLE
RED
ORANGE
BLACK
GREEN
RED
Where a colour is duplicated in the list I want it to have a sequential number assigned. When a new set of duplicates is found the numbering starts from 1 and sequentially increases. So the above data list would resulting in the following output
RED 1
GREEN 1
YELLOW
PURPLE
RED 2
ORANGE
BLACK
GREEN 2
RED 3
Have tried variations of the RANK function, but not sure how to get the sequential nu,bering to restart with each unique set of duplicates. I would also like to do this without VBA if possible using the built in functions.
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Jun 2, 2007
I am making an excel document that has a log of repeating data, one column of which includes names. At the bottom of the document, I am trying to make a small box that tallies all of the people within the document and the number of times they placed an order. What is the formula for when you want excel to find a word within the document? Right now I am using =CELL("CONTENTS",C6) etc. So all that does is repeat the word when it is used. But it duplicates the word in the box down below because it appears in the log numerous times.
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Apr 24, 2008
i need to lookup in a sheet for cells that start for example by "SE=", and copy them to another Sheet creating a list!
But some of this cells started by "SE =" are repeated, like:
SE = cars
SE = cars
SE = cars
SE = dogs
SE = dogs
SE = bike's
and this is what I'll need:
SE = cars
SE = dogs
SE = bike's
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Apr 23, 2014
I have a list of names and an associating number with those names. I'd like to create a dynamic top 10 list, but my problem is that I have duplicate values, here's a sample:
[Code].....
I tried to use LARGE and INDEX to create a top ten list like this:
=LARGE(Names,ROW(1:10))
=INDEX(Names,MATCH(T2,Count,0),1)
But, when the list comes out, it shows only the first entry with a duplicate result:
[Code] ....
How I can get it to grab the second "Name" with the same value as the first?
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Jan 19, 2014
I have attached a sample of what im trying to do here.
A2:A10 i have items, B2:B10 they can selected "yes" or "no" and C2:C10 the values
What I would like is, is "yes" was selected, i would like the item name added to a list. so basically:
=IF(A2:A10="YES",A2:A10)
And then I can just add the value to each item later but I need to remove duplicates and obv have this carried throughout the cells.
Attached File: TEST.xlsx‎
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