i have some cells d1:d10. Some have numbers, others contain "". The "" is the result of an =iferror(,"") function to leave a blank cell.
I am trying to average d1:d10 but only including the cells that are not "".
I have =AVERAGE(IF(D12:D51<>"",D12:D51)) followed by ctrl+shft+enter but it is still taking the average of all the cells (essentially taking the sum and dividing by 10, where I want it to take the sum and divide by less than 10 depending on the number of "" cells)
I couldn't reproduce your problem in Excel 2013.
Normally, Excel's average function ignores text, empty cells and logical values. So, the following formula should do what you are trying to do.
=AVERAGE(D1:D10)
The if clause in your function returns either some numbers or FALSE. Again, normally, Excel's average function ignores FALSE values so it shouldn't behave like you said. If it somehow is converting boolean values to numeric values based on Excel's version (FALSE to zero) you can just give a string instead of a boolean value so it has to ignore those values:
=AVERAGE(IF(D1:D10<>"", D1:D10, "s"))
Alternatively you can calculate the average without the average function:
=SUM(IF(D1:D10<>"", D1:D10))/COUNT(IF(D1:D10<>"", D1:D10))
Related
I am trying to take a data from a table and get the value of how much a class gets a point. I used VLOOKUP to do this, but the problem is that I have to tell the sheets on which class gets how much.
The data:
Your data seems to be setup in a way that unnecessarily complicates things.
kelas-column isn't showing the class, but name and class. For easy use in calculation this would better be divided in two columns: name | class
poins-column seems to be numbers formatted as text (judging by the leading +) if it was showing the number only and the class would show the actual class, a simple SUMIF would solve your problem.
Now it's still doable using SUMPRODUCT:
=SUMPRODUCT(--(A17=RIGHT($B$2:$B$11,2)),--($D$2:$D$11))
The first part checks if the search value A17 equals the last 2 digits in range B2:B11 (the $'s in the formula are to lock the range when dragging the formula down or aside).
This results in an array of TRUE's and FALSE's which is converted to 1's and 0's by the leading --.
The second part simply converts the text values to numbers using the same logic as with the TRUE's and FALSE's, using the --.
SUMPRODUCT multiplies the first array with the second array and adds it all up.
If a condition is true it multiplies the value of the points column by 1 (equals the points), if false it multiplies by 0 (equals 0).
In the end it sums all values meeting given condition.
Based on this comment fom SoftTimur I did some testing on formatting and came across the following problem:
If I put =SEQUENCE(4,,-2) in A1 and custom format the range with 0;-0; it'll show the values as I intended.
If I sum the spill range in A6 using =SUM(A1#) it shows the correct value (-2).
If I put the following in B1: =TEXT(SEQUENCE(4,,-2),"0;-0;") I expected the same result as above. However Excel sees it as text (by default aligned to the left).
If I sum the spill range in B6 using =SUM(B1#) it shows the result 0 while if I sum B1+B2 I get a correct result.
Question 1: What's the explanation of the incorrect sum result in B6 versus the correct one in B7?
Question 2: Is there a different way to display a zero as blank, but keep the ability to calculate the range containing that value?
Question 1:
The TEXT function returns text and computers can't add text strings together. They can only add numbers together.
Excel will sometimes automatically perform type conversions to allow formulas to deliver what Excel guesses as being the expected result. In this case, it is sometimes turning text into numbers before adding them together. This can make like easier for users but the inconsistency can easily lead to errors.
Say A1 and A2 are formatted as text and contain the text character "1". Excel will do an implicit type conversion for operators (+-*/):
=A1 + A2
It won't do conversion for ranges in functions:
=SUM(A1:A2)
=SUM(A1,A2)
When taking in a range, the SUM function will ignore all text, so that it can still sum the numbers in the range without throwing an error. If all cells in the range contain text it will return 0.
However if you tried to use the addition operator on two cells containing text that can't be converted to numbers, it will throw an error.
Note that when you put "A1 + A2" inside the SUM function, excel first evaluates the addition operation (as this is a single input within the function which must be evaluated first), so it converts A1 and A2 to numbers at this point to create a single numeric result, and then the SUM function takes just the single numeric value as input and returns it again as the total.
If you use SUM with two separate inputs, as =SUM(A1,A2), it doesn't convert either input to a number first.
Question 2:
To get the correct result using the SUM function over the range, you can modify the original sequence formula so that it is delivering numeric values. This can be done in various ways:
1 - Convert the text back to a number by multiplying by 1 (forcing another implicit type conversion), handling the error generated for the nullstring which can't be converted to a number:
=IFERROR(TEXT(SEQUENCE(4,,-2),"0;-0;")*1,"")
2 - Test for 0 using an IF statement and return the null string:
=IF(SEQUENCE(4,,-2)<>0,SEQUENCE(4,,-2),"")
3 - Invert the sequence twice, which throws an error only when it is equal to 0:
=IFERROR(1/(1/SEQUENCE(4,,-2)),"")
OR you can modify the SUM formula to convert the range to numbers on input:
=SUM(IFERROR(B1#*1,0))
However this approach requires you to modify all formulas that look at the original sequence. If the original sequence is intended to be used as numbers (as it is in this case), it is better to have it be generated as numbers in the first place.
I am trying to get the max value of a column based on the Left function
What I am doing is the following :
These are the results I get when i write this into column C :
=MAX(LEFT(A:A, 2))
But what I truly want is to get in column C the max value of all column A not for each cell.
So the result should be in this case 90 for all rows.
What should be the formula here?
Just another option that gets entered normally:
=AGGREGATE(14,6,--LEFT($A$1:INDEX(A:A,MATCH("ZZZ",A:A)),2),1)
Array formulas will calculate the enitre referenced array. So care should be taken to limit the number of iterations to only the data set.
The $A$1:INDEX(A:A,MATCH("ZZZ",A:A)) part of the formula does that. It finds the last cell in column A with data in it and sets that as the upper bound. So in this instance the reference range is A1:A3. But, it will grow dynamically as data in Column A is added, so no need to change the formula each time data is added.
Update 2
Here is another solution which I think is better than my original (below)
=INT(SUMPRODUCT(MAX(SUBSTITUTE(A:A,"-",".")*1)))
it can be entered as normal (just Enter)
Orignal Answer
You need numbers and arrays
=MAX(IFERROR(LEFT(A:A,2)*1,0))
Let's break this down. Multiplying by turns your strings into numbers - since Left only returns a string
LEFT(A:A,2)*1
Unfortunately this method returns #Value if you multiply an empty string by 1. You will definitely have some empty strings in the range A:A so we wrap the whole thing with an IFERROR function.
IFERROR(LEFT(A:A,2)*1,0)
Now we still need excel to treat this as an array (i.e. a whole column of numbers, rather than just one number). So we put the MAX formula in and enter it with Ctrl+Shift+Enter rather than just Enter. The result is that the formula looks like this in the formula bar
{=MAX(IFERROR(LEFT(A:A,2)*1,0))}
which would return 90 in your example, as required
Update 1
If you are using Excel 2013 or later, you can also use the NUMBERVALUE function
=MAX(NUMBERVALUE(LEFT(A:A,2)))
again, enter it with Ctrl+Shift+Enter
I want to calculate the average over a range (B1:B12 or C1:C12 in the figure), excluding:
Cells not being numeric, including Empty strings, Blank cells with no contents, #NA, text, etc. (B1+B8:B12 or C1+C8:C12 here).
Cells for which corresponding cells in a range (A1:A12 here) have values outside an interval ([7,35] here). This would further exclude B2:B3 or C2:C3.
At this point, cells in column A may contain numbers or have no contents.
I think it is not possible to use any built-in AVERAGE-like function. Then, I tried calculating the sum, the count, and divide. I can calculate the count (F2 and F7), but not the sum (F3), when I have #N/A in the range, e.g.
How can I do this?
Notes:
Column G shows the formulas in column F.
I cannot filter and use SUBTOTAL.
B8:C8 contain Blank cells with no contents, B9:C9 contain Empty strings.
I am looking for (non-user defined) formulas, i.e., non-VBA.
From
https://stackoverflow.com/a/30242599/2103990:
Providing you are using Excel 2010 and above the AGGREGATE
function
can be optioned to ignore all errors.
=AGGREGATE(1, 6, A1:A5)
You can accomplish this by using array formulas based upon nested IFs to provide at least part of the criteria. When an IF resolves to FALSE it no longer process the TRUE portion of the statement.
The array formulas in F2:F3 are,
=SUM(IF(NOT(ISNA(B2:B13)), (A2:A13>=7)*(A2:A13<=35)*(B2:B13<>"")))
=SUM(IF(NOT(ISNA(B2:B13)), IF(B2:B13<>"", (A2:A13>=7)*(A2:A13<=35)*B2:B13)))
The array formulas in F7:F8 are,
=SUM(IF(NOT(ISNA(C2:C13)), (A2:A13>=7)*(A2:A13<=35)*(C2:C13<>"")))
=SUM(IF(NOT(ISNA(C2:C13)), IF(C2:C13<>"", (A2:A13>=7)*(A2:A13<=35)*C2:C13)))
Array formulas need to be finalized with Ctrl+Shift+Enter↵. Once entered correctly, they can be filled down like any other formula if necessary.
Array formulas increase calculation load logarithmically as the range(s) they refer to expand. Try to keep excess blank rows to a minimum and avoid full column references.
You can get the average of your "NA" column values in one fairly simple formula like this:
=AVERAGE(IF(
(
($A$2:$A$13>=$F$2)*
($A$2:$A$13<=$F$3)*
ISNUMBER(B2:B13)
)>0,
B2:B13))
entered as an array formula using CtrlShiftEnter↵.
I find this to be a very clear way of writing it, because all your conditions are lined up next to each other. They're "and'ed" using the mathematical operator *; this of course converts TRUE and FALSE values to 1's and 0's, respectively, so when the and'ing is done, I convert them back to TRUE/FALSE using >0. Note that instead of hard-coding your thresholds 7 and 35 (hard-coding literals is usually considered bad practice), I put them in cells.
Same logic for your sum and your count; just replace AVERAGE with SUM and COUNT, respectively:
=SUM(IF((($A$2:$A$13>=$F$2)*($A$2:$A$13<=$F$3)*ISNUMBER(B2:B13))>0,B2:B13))
=COUNT(IF((($A$2:$A$13>=$F$2)*($A$2:$A$13<=$F$3)*ISNUMBER(B2:B13))>0,B2:B13))
though a more succinct formula can also be used for the count:
=SUM(($A$2:$A$13>=$F$2)*($A$2:$A$13<=$F$3)*ISNUMBER(B2:B13))
The same formulas can be used to average/sum/count your "blank" column. Here I just drag-copied them one column to the right (column G), which means that all instances of B2:B13 became C2:C13.
I have a column with =IF(E2="W ",H2,IF(I2<>"",I2,"")) in it.
It displays values but when I take an average of the column, it comes up with a divide by zero error.
Is there a special type of average function I need to use for this?
I assume that H2 and/or I2 are numbers? Perhaps those numbers are text formatted (in which case AVERAGE, not finding any true numbers will return #DIV/0! error). Try converting like this:
=IF(E2="W ",H2+0,IF(I2<>"",I2+0,""))
+0 will convert a text-formatted number to an actual number, then your AVERAGE function should work