I'm trying to create a spreadsheet to automatically grade test answers.
Column A has question numbers (from paper sheet), column B has the correct answers, and columns C,D,E... have student answers.
# | Answer | Student A | Student B | Student C | Student D
-------------------------------------------------------------
1 | A | A | A | C | A
2 | B | B | B | B | B
3 | C | C | C | B | C
I'd like to add a row above the headers that shows the number of correct answers for each student, but I can't seem to get the variables right. I'm using the formula =$B2 for conditional formatting, and that works fine. I've tried
ACOUNT(FILTER()), SUMIF, COUNTIF
I think I want something to the effect of
=SUM(IF(B2:B152=C2:C152,1,0))
A SUMPRODUCT function¹ should be sufficient.
=sumproduct(--(C3:C5=$B3:$B5))
Lock the column references to the answers so the formula can be filled right.
¹ The documentation link is for MS-Office, Excel but the syntax is identical.
This single arrayFormula should work:
=mmult(SPLIT(rept("1|",COUNTA(B3:B)),"|"),ArrayFormula(--(C3:F5=B3:B5)))
Paste it in C1 and see the result:
To make formula work, when new rows added:
=mmult(SPLIT(rept("1|",COUNTA(B3:B)),"|"),
ArrayFormula(--(OFFSET(B3,,,COUNTA(B3:B))=OFFSET(C3:F3,,,COUNTA(B3:B)))))
Related
Budget spreadsheet. Column A contains categories, Row 1 contains paycheck dates, and each cell from B2:AE91 contains numeric values ("how much I spent on categoryX during paycheckY").
Named ranges:
Column A - "Budget_LineItem"
Row 1 - "Budget_PayPeriods"
On another tab, I have a list of specific categories called "Funds," where I want to track how much I've saved so far each paycheck toward the category by adding up the category's values each paycheck up until TODAY().
For example:
| | A | B | C | D |
| - | - | - | - | - |
| 1 | Fund | Balance | Today: | =TODAY() |
| 2 | Auto Insurance | =SUMIF(Budget_PayPeriods,"<="&MAX($D$1:$D$2),Budget!F48:AE48) | Projected Date: | |
As you can see, I just have a static range for the "Auto Insurance" category: Budget!B48:AE48. This works, but I want a formula that looks up the adjacent value in column A against the Budget_LineItem range, and returns the row range from B:AE in the Budget spreadsheet.
Basically reads: "Go find how much I've saved/spent so far toward categoryX in the Budget tab, and add up all the values for each paycheck up through today."
I know I'm close, but I can't make INDEX, MATCH, or any of the LOOKUP functions do what I need. I just can't figure it out.
EDIT: Here's a link to an example: https://docs.google.com/spreadsheets/d/1L4mlMrRCWwDNPSiYHpmFiXU1zNOnga6gAziz_m2awKI/edit?usp=sharing
I also made a change to the OP formula in B2 as I realized it didn't work. I had tweaked it because my original formula had extra complexity and I was trying to KISS for this question. I changed it back to the more complex version so it works properly now.
delete range B2:B and use this in B2:
=INDEX(MMULT(FILTER(Budget!B2:4, Budget!B1:1<=MAX(D1:D2))*1,
SEQUENCE(SUMPRODUCT((Budget!B1:1<=MAX(D1:D2))))^0))
update:
=INDEX(IFNA(VLOOKUP(A2:A,
{Budget!A2:A4, MMULT(FILTER(Budget!B2:4, Budget!B1:1<=MAX(D1:D2))*1,
SEQUENCE(SUMPRODUCT((Budget!B1:1<=MAX(D1:D2))))^0)}, 2, 0)))
I have a table like:
| 1 | 10 | <unique appearences from A&B>
| 2 | 10 | <unique appearences from A&B>
| 1 | 20 | <unique appearences from A&B>
| ... |
I want to use a fixed area (columns A:B) and count how much this combination of A & B appeared before including current row.
I use this formula: =ARRAYFORMULA(IF(A2:A<>"";COUNTIFS(A$2:A;A2:A;B$2:B;B2:B);"")).
Each row with its own formula is working: (for row A): =COUNTIFS(A$2:A2;A2;B$2:B2;B2).
Here my example sheet.
Is it possible to make an area in an array formula as fixed?
For specific fields does INDIRECT() sometimes help but not for arrays.
$ doesn't help either.
I mean I figured already out that some functions don't work with array formula like JOIN() - is this also such a case?
=ARRAYFORMULA(COUNTIFS(A2:A21&B2:B21,A2:A21&B2:B21,ROW(A2:A21),"<="&ROW(A2:A21)))
I am building a list of gigs I attended and I want to count how many times I've seen each band.
I know about UNIQUE, but because I keep each band in separate column it just copies each row.
Given the table (or screenshot of real data):
| Date | Venue | Bands |
|----------|--------|--------|--------|--------|--------|--------|
| 02.02.17 | Venue1 | Band A | Band B | Band C | Band D | Band E |
| 02.07.17 | Venue3 | Band D | Band C | | | |
The output I want:
| Band | Attended |
| | (times) |
|--------|----------|
| Band A | 1 |
| Band B | 1 |
| Band C | 2 |
| Band D | 2 |
| Band E | 1 |
I can change structure if needed.
What happens after using UNIQUE: https://i.stack.imgur.com/qmszk.png
Thanks in advance.
Step 1. Get list of all unique bands in one column, one per row
=ArrayFormula(UNIQUE(TRANSPOSE(SPLIT(CONCATENATE(Gigs!D2:Z&CHAR(9)); CHAR(9)))))
Step 2. Place this formula in next column, and drag it down
=SUM(COUNTIF(Gigs!D:Z; E2))
Transform your data to a simple table format in order to make easier to do data-analysis.
A simple table use the first row for column headers a.k.a. fields and has one and only one column for each entity, let say only one column for band names.
The above could be done in a single but complex formula hard to debug, so it's better to start by doing this using simple formulas and once you are certain that all is working fine, think about making a complex formula or writing and script.
Related
Unpivot Matrix to Tabular. Using counts of two variables into individual rows
Generate a list of all unique values of a multi-column range and give the values a rating according to how many times they appear in the last X cols
Normalize (reformat) cross-tab data for Tableau without using Excel
How do you create a "reverse pivot" in Google Sheets?
I'm trying to write a SQL query in Google Sheets to try and get data for "matching" results from two different tabs, but running into some trouble.
This is a sheet that's basically an automated scoring engine for instructors who take a two-part test (written and practical). After the results are entered, I'd like to use some SQL to take the results from the two tabs and collate them into a final score.
Link to the sheet in question.
There's a "Practical Scores" tab (which takes all the data from the associated Google Form), and a "Written Scores" tab. I'd like to get the name of the instructors who match in both those tabs, and give the associated score for them, but I'm mostly having trouble with writing the correct SQL.
Most of what I'm trying to do is working fine. I'm able to pull the final practical scores via the following SQL:
=query(PracticalScores!A2:E, "select A, count(E),SUM(E)/3 group by A")
I can also pull the written scores as follows:
=query('Written Scores'!B2:C,"select B,C")
But I want the intersection of the two as well, and that's where I'm running into problems.
=query(A8:E, "select A,C,D where A = E")
will simply return the rows where the names match up, and I want the instances where the names match up, regardless of whether the rows do.
That is, I want all the rows where the names match from tab 1 to tab 2 and not just the few rows that happen to line up perfectly.
If I'm not explaining this well, please let me know and I can provide additional information. Any assistance would be very greatly appreciated!
Since the query function does not support joins, this can't all be done in one query. Instead, the following device can be used:
=arrayformula(vlookup(name column, table, # of column to extract, False))
For example, suppose I have a table
+---+-------+---+
| | A | B |
+---+-------+---+
| 2 | Jim | 3 |
| 3 | Sarah | 4 |
| 4 | Bob | 5 |
+---+-------+---+
to which I want to add another column, taking it from
+---+-------+---+
| | E | F |
+---+-------+---+
| 2 | Sarah | 9 |
| 3 | Bob | 8 |
| 4 | Jim | 7 |
+---+-------+---+
The basic idea is to put in cell C2 the formula
=arrayformula(vlookup(A2:A, E2:F, 2, false))
which will look up every name from first table (column A) in the column E, and return the matching value in column F. Result:
+---+-------+---+---+
| | A | B | C |
+---+-------+---+---+
| 2 | Jim | 3 | 7 |
| 3 | Sarah | 4 | 9 |
| 4 | Bob | 5 | 8 |
+---+-------+---+---+
In practice, one should filter out empty lookup values to improve performance:
=arrayformula(vlookup(filter(A2:A, len(A2:A)), E2:F, 2, false))
If the second table contains some names not present in the first, they will not be returned by the above formula. In this case it is better to prepare a full list of names, for example with
=sort(unique({Sheet1!A2:A; Sheet2!A2:A}))
which collects the names from A columns of two sheets, eliminating duplicates and sorting. Then look up those using vlookup as above.
I have a spreadsheet from a Google Consumer Survey. The survey captured demographics as well as the responses to a question. Acceptable responses could have chosen zero or more 'answers'. The response for each answer is in a unique column. For example,
user id | gender | age | income | answer 1 | answer 2 | answer 3 |
0001 | Female | 20-30 | 50-75 | [empty] | Right | Never |
0002 | Male | 20-30 | 30-50 | Up | Left | [empty] |
I would like to know how to correlate a column of demographic info with each of the possible answers. For example, I want to be able to answer questions like, Were males more likely than females to choose X for answer 1? and Which age group was more likely to choose Y for answer 2?
I prefer an answer using Google Sheets functions, but I am open to learning other ways to understand the data. Thank you for any help!
Good way is to use query function. Let's first assume, your data is stored in range A:G:
A | B | C | D | E | F | G |
user id | gender | age | income | answer 1 | answer 2 | answer 3 |
0001 | Female |20-30| 50-75 | [empty] | Right | Never |
0002 | Male |20-30| 30-50 | Up | Left | [empty] |
you may write simple query functions.
For example, to count all answer 1, group them by gender and age, pivot by answer 1:
=query(A:G,"select B, C, count(D) where not A is null group by B, C pivot E")
where not A is null -- prevents empty data to be used in query
count(D) -- can count any column, that wasn't already used by query
group by B, C -- must contain all selected items, except aggregates (count, sum, ets.)
pivot E -- will make all answers to show in separate columns.
The result will look like this:
Left Never Right Up
Female 20-30 1 1 1
Female 30-40 1
Male 20-30 1 1 1
Male 30-40 1
Please, look at complete Query Language Reference to learn more.
Have you tried using the Pivot Table function of Google Sheets?
Download the data in excel format after the survey is complete and open with Google Sheets
Select the tab with the resulting data from the Google Consumer Survey after it is run.
From the menu, select Data -> Pivot Table. This opens a new tab in your spreadsheet.
For the Values area of the pivot table, select User ID and from the "Summerize by" dropdown, select COUNTUNIQUE
For the columns and rows, select whichever dimensions you are interested in. For instance, in your example, you would pick
"Gender" and "Answer 1" as a row and column.
"Age" and "Answer 2" as a row and column.
This should answer these kinds of questions easily.
Hope this helps!
What I think I needed was the COUNTIFS function (in Google Sheets). Notice the plural use, which is different than countif (singular).
COUNTIFS allowed me to specify multiple criteria to make a score for each demographic segment. For example, I could count all the Males that responded Up in the answer 1 column.