Aniko Balogh CEU Computer & Statistics Center balogha@ceu.edu Functions Aniko Balogh CEU Computer & Statistics Center balogha@ceu.edu

TRUE, FALSE, IF function The IF function allows you to make logical comparisons between a value and what you expect. IF(Something is True, then do something, otherwise do something else) So an IF statement can have two results. The first result is if your comparison is True, the second if your comparison is False. TRUE and FLASE is automatically calculated by Excel: =A1=B1 - if the cells contain the same value  TRUE, - if the cells contain different value  FALSE

Practice TRUE, FALSE Open Practice 4 Look at the percentage change table If the value in the % Change column is bigger than 0, then the salesperson gets a bonus Type the following formula: =L2>0, push Enter, TRUE or False will appear Copy the formula down the column

Practice IF Look at the students scores table Pass/Fail If the Actual score is bigger than 60, then the student passed Click into E2 Choose the IF function from the function wizard Logical test: B2>60 Value if true = Pass, Value if false = Fail Copy the formula down the column

Goal Seek You know the result of a calculation, but you don’t know either of the values Simple example: you know, that 7 times something is 56, type the calculation with cell references: =B8*C8, the result will be 7*0=0 You want to change the result to 56 Select the cell that contains the formula. In this case, that's D8. Click the Data tab, What-If Analysis and choose Goal Seek  Set cell: D8, To value: type 56, By changing cell: C8, Enter The result will change to 56

Goal Seek More complicated example: you would like to re-calculate the loan payment example by changing the length of payments You want to change the monthly payment to 70 000 HUF First repeat the PMT exercise to get the result Select the cell that contains the formula. In this case, that's D4. Click the Data tab. In the Data Tools group, click What-If Analysis and choose Goal Seek  Set cell: D4, To value: type -70000 (it must be a negative number, as it is a payment), By changing cell: B4 (Number of Payments), Enter The result will change to 70 000 HUF

VLOOKUP VLOOKUP is an Excel function to lookup and retrieve data from a specific column in table. VLOOKUP supports approximate and exact matching, and wildcards (* ?) for partial matches. The "V" stands for "vertical". Lookup values must appear in the first column of the table, with lookup columns to the right.

VLOOKUP Open Practice 4.xlsx Search for the grade of students based on their scores: value - The value to look for in the first column of a table. = score table - The table from which to retrieve a value. = table of grades PUSH F4 to fix the range col_index - The column in the table from which to retrieve a value. = 2 range_lookup - [optional] TRUE = approximate match (default). FALSE = exact match.

VLOOKUP Who lost her/his ID card? Lookup the badge number, ID-4537, in the first column and return the matching value in the same row of the fourth column (family name) Click into I16 value - The value to look for in the first column of a table. = I20 table - The table from which to retrieve a value. = I16:L21 (PUSH F4 to fix the range) col_index - The column in the table from which to retrieve a value. = 4 range_lookup - [optional] TRUE = approximate match (default). FALSE = exact match. What’s her/his phone number? – col_index to 2

Resources https://www.techrepublic.com/article/how-to-use-excels-goal-seek- analysis-tool/ https://www.myexcelonline.com/blog/use-excel-goal-seek-to-find- the-formula-result-you-want/ https://www.excelcampus.com/functions/how-to-write-if-function/ https://www.youtube.com/channel/UCSxX7Vgyu9iThxPE1jSDFdw https://support.office.com/en-us/article/vlookup-function-0bbc8083- 26fe-4963-8ab8-93a18ad188a1 https://exceljet.net/excel-functions/excel-vlookup-function