How to count the occurrences of 'STRING' in a row, but only if that row begins with 'IFTEXT'

Question

I have a sheet with employee time logs, as follows:

Name    Day1       Day2       Subtotal of 'OFF' days this period
Jess    PRESENT    OFF        1
Bob     PRESENT    PRESENT    0
Name    Day3       Day4       Subtotal of 'OFF' days this period
Jess    PRESENT    PRESENT    0
Bob     OFF        OFF        2

I need to create an automatic total of the number of days off each employee has had. How could I do this? =COUNTIF(1:100,"OFF") would return the total number of off days, but is there a way to get this total only rows where the first cell contains "Jess"?

(In this example, "OFF" is "STRING" in my question, while "Jess" is "IFTEXT")

Answer 1

If you don't want to precalculate the subtotal of off days, you can use an array formula:

=arrayformula(SUM((A:A="Jess")*(B:C="OFF")*1))

A:A="Jess" returns a bunch of TRUE and FALSE, in your sample, it would be {TRUE, FALSE, FALSE, TRUE, FALSE}

B:C="OFF" returns another bunch of TRUE and FALSE, in your sample, it would be {FALSE, TRUE; FALSE, FALSE; FALSE, FALSE; FALSE, FALSE; FALSE, FALSE} (note semicolons denoting the different rows)

And those two multiplied is evaluated as:

From A:A="Jess"  From B:C="OFF"   Result
TRUE             (FALSE, TRUE ) = FALSE TRUE
FALSE            (FALSE, FALSE) = FALSE FALSE
FALSE            (FALSE, FALSE) = FALSE FALSE
TRUE             (FALSE, FALSE) = FALSE FALSE
FALSE            (TRUE , TRUE ) = FALSE FALSE

Only a TRUE multiplied by another TRUE gives a result of TRUE. The *1 last converts every TRUE to 1. SUM then adds all the 1 together.

Answer 2

This worked for me when I tried it:

=COUNTIFS(A1:A7,"JESS",C1:C7,"OFF")

This allows you to "count if" on multiple criteria.

NOTE: The COUNTIFS function is only available in the new Google Sheets (released December 2013), so old spreadsheets that have not yet been converted will not be able to utilize it.

Answer 3

On the left of the table create a column for each employee. Set value to =IF(A{row}="{employee}",1,0), then you can just take the array product of this column and the subtotal column.