Use the TYPE function to check for invalid values - Logical Functions - Microsoft Excel Tutorials

14.  Use the TYPE function to check for invalid values

Sometimes Excel cannot interpret some values, especially imported data. As an example, let’s say a cell contains an apparent value but the calculation leads to an incorrect result. To prevent this, use the IF function in combination with TYPE to check for invalid data in the worksheet. This example will enter the text “invalid value” in column B if the value entered in column A is not numeric.

To show invalid values in a worksheet:



1. Enter some values or text in column A.
2. Select cells B2:B10 and type the following formula: =IF(AND(TYPE(A2)=1,A2""),A2,"invalid value").
3. Press <-Ctrl+Enter->.

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Use the IF function to check for larger, equivalent, or smaller values - Logical Functions - Microsoft Excel Tutorials

6.  Use the IF function to check for larger, equivalent, or smaller values

In the previous example, two different messages were used as the result for comparing values. To check for three conditions in column A and present the result as “Column A is larger,” “equal,” or “Column A is smaller,” perform the following steps.

To compare columns and show the result:

1. Copy the previous example.
2. Select cells C2:C12 and type the following formula: =IF(A2>B2,"Column A is larger",IF(A2=B2,"equal",
"Column A is smaller")).
3. Press <-Ctrl+Enter->.

Note: Up to seven IF functions can be combined in one cell.  To combine more than seven functions, use the customized  solution near the end of this chapter.



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