Find the last number in a text string - excel

I want to find the position of the last numeric character in a text string. I'm using this formula to do so:
MAX(IF(ISERROR(FIND({1;2;3;4;5;6;7;8;9;0},A1)),"",FIND({1;2;3;4;5;6;7;8;9;0},A1))
However, this doesn't work if the string contains repeating numbers.
For instance, when the string is "10ABC2010ABC" it will return 6 instead of 9.
When the string is "10ABC2131ABN" it does return 8 instead of 9.
Any ideas what's going on?

Here is working formula:
=MAX(IF(ISNUMBER(VALUE(MID(A1,ROW(INDIRECT("1:" & LEN(A1))),1))),ROW(INDIRECT("1:" & LEN(A1)))))
press CTRL+SHIFT+ENTER to evaluate it.
Explanation:
ROW(INDIRECT("1:" & LEN(A1))) returns you array {1,2,3,...,Len(A1)}
using this array we can take each character in A1 cell: MID(A1,ROW(INDIRECT("1:" & LEN(A1))),1)
using VALUE(...) we tries to convert each character to number. It returns #VALUE! error for all characters exept 1,2,3,4,5,6,7,8,9,0
using ISNUMBER(...) we check whether VALUE(..) returns number or error, and if it returns number, we remember it's position.
final step - using Max(..) we find last position of numeric character

FIND only finds the position of the first instance of each number so it won't work for your requirements. Try using this formula
=MAX(IFERROR(FIND({1,2,3,4,5,6,7,8,9,0},A1,ROW(INDIRECT("1:"&LEN(A1)))),0))
confirmed with CTRL+SHIFT+ENTER
That also uses FIND but the ROW(INDIRECT part starts the search further along the string on each occasion. If there are no digits in A1 you get zero as the result (you could make that an error if you want)
Another possibility if you are using Excel 2010 or later is to use AGGREGATE function like this: [untested]
=AGGREGATE(14,6,FIND({1,2,3,4,5,6,7,8,9,0},A1,ROW(INDIRECT("1:"&LEN(A1)))),1)
That doesn't require "array entry"
See here for sample workbook with suggested formulas

And this array formula will also work... ok, ok... I know it uses offset :)
=1+LEN(A1)-MATCH(1;ISNUMBER(LEFT(RIGHT(A1;ROW(OFFSET(A1;0;0;LEN(A1);1))))*1)*1;0)

Related

Excel Formula separate the left numeric values from the data

I have some data in Col"K" where from i am just trying to get the left characters as i tried in Col"H" using formula.
But what i used is Left function like =Function(cell,10) that is not the correct way characters can be more than 10 or less than 10.
1st formula should be dynamic to get the left numeric values.
2nd Formula should copy and paste the same numeric values until next value comes as available in Col"I"
I tried to make it but what i can do is to create left function and do not know how to develop it dynamic.
Any help will be appreciated.
Sheet Link
https://docs.google.com/spreadsheets/d/1nJZeWDZ0EWgmWB0z17xU93fjIOFsu46EL37IJqJzZ_0/edit?usp=sharing
This formula should do the job.
[J2] =IFERROR(TRIM(LEFT(L2,FIND("-",L2)-1)),J1)
Note that it will fail if placed in row 1 and there is no dash in L1.
Use find function to get numeric characters length.
=iferror(trim(left(L3,FIND("-",L3)-1)),M2)
Here we are finding the separator "-" in your text and it gives us index number of separator.
Then picking text from start to before index number i.e., Numeric value and removing blank spaces, if any, using trim function. If we don't have number/separator in the text then showing previous cell value using iferror function. So, Make sure first row always has numeric value.
Same has implemented in the sheet you have shared
As per the latest data I have updated my answer as below , now it is checking output is numeric or not:
=IF(COUNT(FIND({0,1,2,3,4,5,6,7,8,9},J9))=0,K8,TRIM(LEFT(J9,FIND("-",J9)-1)))

Unable to convert text to Numbers

I've been given an excel to import on Database, it was exported from an Access DB. in the excel there's a column type_class, in one excel it's good(sheet1), but on another excel which I moved to sheet2 to make VLOOKUP function, I can't tell whether it's a text or a number column from the first sight. the upper-left green-thing is not showing on all cells. but, using ISTEXT function result in text. below is the original column without any changes or formatting, as well as ISTEXT result.
when I use the column in a VLOOKUB function to transfer the Name to the first sheet, only (1010, 1101, 1102,....), hence the cells with the green-mark on the upper-left corner.
I can easly format the key in sheet1 using text-to-columns, cell formatting, and any other way.
but I cannot change the column in sheet2, I tried:
Text-to-Columns
Cell Formatting
VALUE(text), CLEAN(text), TRIM(text), TRIM(CLEAN(text)), CLEAN(SUBSTITUTE())
Multiply by 1
but only the cell with the green-mark changes to a number, the rest stays the same. I browsed the internet but didn't get a solution either.
Edit:
I uploaded what is need to test the case on the drive. you can find it here
Help Appreciated
For your digit strings that you can't convert to text, from the comments it seems there are extra characters in that string not removable by TRIM or CLEAN.
Determine what those character are
Assume a "non-convertible" digit string is in A1
Enter the following formula
B1: =MID($A$1,ROWS($1:1),1) and fill down
C1: = UNICODE(B1) and fill down
From this you can determine the character to use in a SUBSTITUTE function.
For example:
From the above we see that the character code that we need to get rid of is 160.
So we use:
=SUBSTITUTE(A1,CHAR(160),"")
or, to convert it in one step to a number:
=--SUBSTITUTE(A1,CHAR(160),"")
Note If the character code is >255, use UNICHAR instead of CHAR in the SUBSTITUTE function.
Without an example, I use value() to convert what excel takes as text like so:
=value(left(“10kg”,2))
Or the following also works:
=left(“10kg”,2)*1
Note those double quotes should be the straight ones - sorry smartphone is not always smart...
And if leading or trailing spaces are an issue, then trim() is one solution.

Specific Excel Formula doesn't works

I need to make an text string from 7 second last numbers of EAN and additional string..
EAN is here: 8592346106093, so the string what I need is: MJ4610609
I also tried by idea from this article: https://excelnotes.com/how-to-extract-the-second-last-letter/ but doesn't works.. Can anyone help me?
I also tried to setup the columns to General format, text format and number, nothing doesn't work..
As an alternative to Mark Pattison's answer:
="MJ" & LEFT(RIGHT(A1,8),7)
This will give you the leftmost 7 of the rightmost 8 characters of the value in cell A1, prepended with the string "MJ"
If the number 8592346106093 is in cell A1, the the following formula will work:
="MJ"&MID(A1,LEN(A1)-7,7)
The MID function extracts a substring from within a longer string.

Formula to extract numbers from a text string

How could I extract only the numbers from a text string in Excel or Google Sheets? For example:
A1 - a1b23eg67
A2 - 15dgrgr156
Result desired is
B1 - 12367
B2 - 15156
You can do it with capture groups in Google Sheets
=REGEXREPLACE(A1,ʺ(\d)|.ʺ,ʺ$1ʺ)
Anything which matches the contents of the brackets (a digit) will be copied to the output, anything else replaced by an empty string.
Please see #Max Makhrov's answer to this question
or
=regexreplace(A1,ʺ[^\d]ʺ,ʺʺ)
to remove anything which isn't a digit.
Because you asked for Excel also,
If you have a subscription to office 365 Excel then you can use this array formula:
=--TEXTJOIN("",TRUE,IF(ISNUMBER(--MID(A1,ROW(INDIRECT("1:"&LEN(A1))),1)),MID(A1,ROW(INDIRECT("1:"&LEN(A1))),1),""))
Being an array formula it needs to be confirmed with Ctrl-Shift-Enter instead of Enter when exiting edit mode. If done correctly then Excel will put {} around the formula.
I would imagine there is a way to pull this off with =RegexExtract but I can't figure out how to get it to repeat the search after the first hit. Often with these regex function implementations there is a third parameter to repeat, but it doesn't look like google implemented it.
At any rate, the following formula will do the trick. It's just a little roundabout:
=concatenate(SPLIT( LOWER(A1) , "abcdefghijklmnopqrstuvwxyz" ))
This is converting the string to lower case, then splitting the string using any letter of the alphabet. This will return an array of the numbers left over, which we concatenate back together.
Update, switched over to =REGEXREPLACE() instead of extract...:
=regexreplace(A1, "[a-z]", "")
That's a much cleaner and obvious way of doing it than that concat(split()) nonsense.

Excel - IF Formula with a FIND

I have an excel document I have to process regularly, while awaiting my company to build an automated process for this, and the issue we recently found is that the formula I'm using strips can't return a result other than #VALUE! when the FIND formula fails to find the text I need it to.
the formula we currently have is:
=IF(FIND("-",M2,3),RIGHT(M2,2))
The cells this formula checks have states, & provinces in them which look like so "CA-ON" or "US-NV".
The problem is that regions for the UK don't fillout as "UK-XX" it inputs the actual county for example "Essex" or "Merryside"
What I need the formula to do is, if it can't find the hyphen(-) in the cell, then it should just take whatever value is there and write it in the cell the formula is in.
I should also mention that some of the cells are also blank, since this is an optional field. Is there anyway to run this formula where if it doesn't find the "-" it just writes whats there?
What about using mid() to see if the third character is "-"
=IF(MID(A1,3,1)="-",RIGHT(A1,2),A1)
If you really want to use the find() function then:
=IF(ISNUMBER(FIND("-",A1)),RIGHT(A1,2),A1)
The IFERROR Function should help here. And there isn't a reason to use the if statement anymore. The formula below will find the hyphen if it is in the first 3 characters, and find the length of the string minus the location of the hyphen and return that string. The IFERROR will catch the instances where there is no hyphen and return your original cell.
=IFERROR(RIGHT(M2,LEN(M2)-FIND("-",LEFT(M2,3),1)),M2)

Resources