Extracting Lens information from a title - excel-formula

Im having difficulty making a formula.
I want to extract the focal length in one field and the aperture in another field.
The text would be
Sigma 28-200mm f3.5-5.6 DG Macro, Boxed 5001360
Ideally I want to extract the "28-200mm" into one field and the "f3.5-5.6" into another. The only constants for each would be that the focal lenth always ends in mm and the aperture always starts with f.
Any help would be appreciated.
Thanks!

If the text Sigma 28-200mm f3.5-5.6 DG Macro, Boxed 5001360 is in Cell A1 then to get Focal Length use the following formula
=TRIM(RIGHT(SUBSTITUTE(LEFT(A1,(FIND("mm",A1,1)+1))," ",REPT(" ",LEN(LEFT(A1,(FIND("mm",A1,1)+1))))),LEN(LEFT(A1,(FIND("mm",A1,1)+1)))))
To get Aperture use below formula
=LEFT(RIGHT(A1,LEN(A1)-FIND("f",A1)+1),(FIND(" ",RIGHT(A1,LEN(A1)-FIND("f",A1)+1),1)-1))
Note : The FIND function is case sensitive. If you are looking for a case-insensitive match, use the SEARCH function as
=LEFT(RIGHT(A1,LEN(A1)-SEARCH("f",A1)+1),(SEARCH(" ",RIGHT(A1,LEN(A1)-SEARCH("f",A1)+1),1)-1))
Another Note : If you have another text/word in the string containing f then you may get incorrect result. FIND function returns the position of the character occurring first. See Row 4 in image below
Another formula to get Focal Length
=MID(LEFT(A1,(FIND("mm",A1,1)+1)),FIND("#",SUBSTITUTE(LEFT(A1,(FIND("mm",LEFT(A1,(FIND("mm",A1,1)+1)),1)+1))," ","#",LEN(LEFT(A1,(FIND("mm",A1,1)+1)))-LEN(SUBSTITUTE(LEFT(A1,(FIND("mm",A1,1)+1))," ",""))))+1,LEN(LEFT(A1,(FIND("mm",A1,1)+1))))

Related

If second two characters equal this then that

I have a string of letters and numbers, where if the second two characters of the string equal a certain value, then a location value should be shown in the corresponding column.
I have used the MID function to essentially extract the characters of the string that I want to use MID(A2,2,2) but now I can't figure out how to compare what is returned to a list of options that those two characters could be without typing in each option in an extremely long formula.
Here are possible strings that are situated in a column:
3PH356969
MSFFACEBUS
MBH0007398
MBH0007402
I am extracting the second two characters of these, to compare to a list similar to this
PH
SF
BH
PG
HR
These values then correspond to location (below), which would optimally be returned:
Philadelphia
Bay Area
Birmingham
Western PA
Hartford
I can write =IF(MID(A2,2,2)="PH","Philadelphia",else...) but then the else-ifs will go on for 76 more 2-character strings to compare against. I'm hoping there is a more optimal way for this.
Expected results should be the location corresponding to the string, or just "error" displayed.
Basically we need to use a lookup/reference table, but instead of a much more common VLOOKUP function we can use a much faster INDEX + MATCH combo.
Formula in B1:
=INDEX($E$1:$E$6,MATCH(MID(A1,2,2),$D$1:$D$6;0))
I would use a VLOOKUP, personally. Although it would require a separate lookup table, just feed your MID result as the VLOOKUP key. Then you could easily add/remove locations, and there will be an #N/A error if the key's not there.
If you don't want a separate lookup table, you may try it this way:
=IFERROR(INDEX({"Philadelphia","Bay Area","Birmingham","Western PA","Hartford"},MATCH(MID(A2,2,2),{"PH","SF","BH","PG","HR"},0)),"Not found")

Extracting text from complex string in excel

The attached image (link: https://i.stack.imgur.com/w0pEw.png) shows a range of cells (B1:B7) from a table I imported from the web. I need a formula that allows me to extract the names from each cell. In this case, my objective is to generate the following list of names, where each name is in its own cell: Erik Karlsson, P.K. Subban, John Tavares, Matthew Tkachuk, Steven Stamkos, Dustin Brown, Shea Weber.
I have been reading about left, right, and mid functions, but I'm confused by the irregular spacing and special characters (i.e. the box with question mark beside some names).
Can anyone help me extract the names? Thanks
Assuming that your cells follow the same format, you can use a variety of text functions to get the name.
This function requires the following format:
Some initial text, followed by
2 new lines in Excel (represented by CHAR(10)
The name, which consists of a first name, a space, then a last name
A second space on the same line as the name, followed by some additional text.
With this format, you can use the following formula (assuming your data is in an Excel table, with the column of initial data named Text):
=MID([#Text],SEARCH(CHAR(10),[#Text],SEARCH(CHAR(10),[#Text])+1)+1,SEARCH(" ",MID([#Text],SEARCH(CHAR(10),[#Text],SEARCH(CHAR(10),[#Text])+1)+1,LEN([#Text])),SEARCH(" ",MID([#Text],SEARCH(CHAR(10),[#Text],SEARCH(CHAR(10),[#Text])+1)+1,LEN([#Text])))+1)-1)
To come up with this formula, we take the following steps:
First, we figure out where the name starts. We know this occurs after the 2 new lines, so we use:
=SEARCH(CHAR(10),[#Text],SEARCH(CHAR(10),[#Text])+1)+1
The inner (occurring second) SEARCH finds the first new line, and the outer (occurring first) finds the 2nd new line.
Now that we have that value, we can use it to determine the rest of the string (after the 2 new lines). Let's say that the previous formula was stored in a table column called Start of Name. The 2nd formula will then be:
=MID([#Text],[#[Start of Name]],LEN([#Text]))
Note that we're using the length of the entire text, which by definition is more than we need. However, that's not an issue, since Excel returns the smaller amount between the last argument to MID and the actual length of the text.
Once we have the text from the start of the name on, we need to calculate the position of the 2nd space (where the name ends). To do that, we need to calculate the position of the first space. This is similar to how we calculated the start of the name earlier (which starts after 2 new lines). The function we need is:
=SEARCH(" ",[#[Rest of String]],SEARCH(" ",[#[Rest of String]])+1)-1
So now, we know where the name starts (after 2 new lines), and where it ends (after the 2nd space). Assuming we have these numbers stored in columns named Start of Name and To Second Space respectively, we can use the following formula to get the name:
=MID([#Text],[#[Start of Name]],[#[To Second Space]])
This is equivalent to the first formula: The difference is that the first formula doesn't use any "helper columns".
Of course, if any cell doesn't match this format, then you'll be out of luck. Using Excel formulas to parse text can be finicky and inflexible. For example, if someone has a middle name, or someone has a initials with spaces (e.g. P.K. Subban was P. K. Subban), or there was a Jr. or something, your job would be a lot harder.
Another alternative is to use regular expressions to get the data you want. I would recommend this thorough answer as a primer. Although you still have the same issues with name formats.
Finally, there's the obligatory Falsehoods Programmers Believe About Names as a warning against assuming any kind of standardized name format.

Converting letters to text and back again (Excel 2013)

For a piece of coursework I have to complete a register of student grades. I am trying to calculate their overall grades by converting their grades from each of the four units into numbers (which I have done using the VLOOKUP function), but I need to then convert the result of the average back into a letter. I have used VLOOKUP and also a long nested IF statement to try and accomplish this, but no matter what I can never get a valid result. This is what I have so far (this is just a link to my image as I am unable to post one).
I have converted the Target grade into a number using the formula:
=VLOOKUP(D3,'Grade Values'!A$2:B$11,2,FALSE)
Then added up the total of the different grades from the four units using this formula:
=SUM(VLOOKUP(F3,'Grade Values'!A$1:B$11,2,FALSE)+
VLOOKUP(Dashboard!G3,'Grade Values'!A$1:B$11,2,FALSE)+
VLOOKUP(Dashboard!H3,'Grade Values'!A$1:B$11,2,FALSE)+
VLOOKUP(Dashboard!I3,'Grade Values'!A$1:B$11,2,FALSE))
And then averaged it out with this: =J3/4
The problem I am facing at the moment is that when converting this number back to a letter using the same table as in the second screenshot I get an N/A result when I use this formula: =VLOOKUP(K3,Dashboard!A1:B10,1,FALSE)
I can't seem to figure out what's going wrong with the formula at the end. If anyone can please help me figure this out I will appreciate it a lot. Thank you :)
Edit: I apologise for the irrelevant tags, as far as I was aware formulas in Excel were written in JavaScript.
Personally, I would convert the letter grade to ASCII character using the function:
CODE(A1)
use the ASCII Reference Chart for the integer value of each Upper Case character. Note: A=65, B=66, etc... Perform your calculations, then you can use the function:
CHAR(A2)
to convert the number back into a character.
Example:
A1="A"
A2="B"
A3="C"
B1="=CHAR(AVERAGE(CODE(A1),CODE(A2),CODE(A3)))"
just copy the column A in the sheet dashboard and paste it in column C in the sheet dashboard... so you have
A B C
A* 7 A*
A 7 A
B 6 B
....
the formula you have to use is
=VLOOKUP(K3,Dashboard!$B$1:$C$10,2,FALSE)
remember that this time u need to match a number... not a letter

retrieve part of the info in a cell in EXCEL

I vaguely remember that it is possible to parse the data in a cell and keep only part of the data after setting up certain conditions. But I can't remember what exact commands to use. Any help/suggestion?
For example, A1 contains the following info
0/1:47,45:92:99:1319,0,1320
Is there a way to pick up, say, 0/1 or 1319,0,1320 and remove the rest unchosen data?
I know I can do text-to-column and set the delimiter, followed by manually removing the "un-needed" data, but my EXCEL spreadsheet contains 100 columns X 500000 rows with each cell looking similar to the data above, so I am afraid EXCEL may crash before finishing the work. (have been trying with LEFT, LEN, RIGHT, MID, but none seems to work the way I had hoped)
Any suggestion will be greatly appreciated.
I think what you are looking for is combination of find and mid, but you'll have to work out exactly how you want to split your string:
A1 = 0/1:47,45:92:99:1319,0,1320 //your number
B1 = Find(“:“,A1) //location of first ":" symbol
C1 = LEN(A1) - B1 //character count to copy ( possibly requires +1 or -1 after B1.
=Left(A1,B1) //left of your symbol
=Mid(A1,B1+1,C1) //right size from your symbol (you can also replace C1 with better defined number to extract only 1 portion
//You can also nest the statements to save space, but usually at cost of processing quantity increase
This is the concept, you will probably need to do it in multiple cells to split a string as long as yours. For multiple splits you probably want to replicate this command to target the result of previous right/mid command.
That way, you will get cell result sequence like:
0/1:47,45:92:99:1319,0,1320; 47,45:92:99:1319,0,1320; 92:99:1319,0,1320; 99:1319,0,1320......
From each of those you can retrieve left side of the string up to ":" to get each portion of a string.
If you are working with a large table you probably want to look into VB scripting. To my knowledge there is no single excel command that can take 1 cell and split it into multiple ones.
Let me try to help you about this, I am not a professional so you may face some problems. First of all my solution contains 2 columns to be added to the source column as you can see below. However you can improve formulas with this principle.
Column B Formula:
=LEFT(A2,FIND(":",A2,1)-1)
Column C Formula:
=RIGHT(A2,LEN(A2)-FIND("|",SUBSTITUTE(A2,":","|",LEN(A2)-LEN(SUBSTITUTE(A2,":","")))))
Given you statement of having 100x columns I imagine in some instances you are needing to isolate characters in the middle of your string, thus Left and Right may not always work. However, where possible use them where you can.
Assuming your string is in cell F2: 0/1:47,45:92:99:1319,0,1320
=LEFT(F2,3)
This returns 0/1 which are the first 3 characters in the string counting from the left. Likewise, Right functions similarly:
=RIGHT(F2,4)
This returns 1320, returning the 4 characters starting from the right.
You can use a combination of Mid and Find to dynamically find characters or strings based off of defined characters. Here are a few examples of ways to dynamically isloate values in your string. Keep in mind the key to these examples is the nested Find formula, where the inner most Find is the first character to start at in the string.
1) Return 2 characters after the second : character
In cell F2 I need to isolate the "92":
=MID(F2,FIND(":",F2,FIND(":",F2)+1)+1,2)
The inner most Find locates the first : in the string (4 characters in). We add the +1 to move to the 5th character (moving beyond the first : so the second Find will not see it) and move to the next Find which starts looking for : again from that character. This second Find returns 10, as the second : is the 10th character in the string. The Mid formula takes over here. The formula is saying, Starting at the 10th character return the following 2 characters. Returning two characters is dictated by the 2 at the end of the formula (the last part of the Mid formula).
2) In this case I need to find the 2 characters after the 3rd : in the string. In this case "99":
=MID(F2,FIND(":",F2,FIND(":",F2,FIND(":",F2)+1)+1)+1,2)
You can see we have simply added one more nested Find to the formula in example 1.

How to modify numbers at the end of a cell using a formula

I have cells in excel containing data of the form v-1-2-1, v-1-2-10, v-1-2-100. I want to convert it to v-1-2-001, v-1-2-010,v-1-2-100. I have nearly 2000 entries
If all of the data follows the format shown then you could use FIND to return the position of '-'. There will be three instances of this character and you need to find the third one so use the position given by the first instance as the start position parameter of the second FIND and again for the third (essentially nesting FIND). Once you have the position of the third '-' you know where the final set of numbers are (from the returned third position+1 to the LEN of the string) and could use SUBSTITUTE or a combination of other excel string functions to configure the final portion as you need it.
I'm assuming that excel has your data formatted as text.
If you need further assistance I'm happy to knock up the formula in excel but I'm off to work now and won't be able to do so for around 9 hours.
Please try:
=LEFT(A1,6)&TEXT(MID(A1,7,10),"000")

Resources