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Excel COUNTIF Function Basic example Notice COUNTIF is not casesensitive, "CA" and "ca" are treated the same Double quotes ("") in criteria In general, text values need to be enclosed in double quotes (""), and numbers do not Value from another cell A SUMIF, SUMIFS, COUNTIF, and COUNTIFS are extremely useful and powerful for data analysis If there was an Excel Function Hall of Fame, this family of functions ought to be included In this article, I'll demonstrate a bunch of different ways to use these functions, focusing mainly on all the different criteria types I have a dataset containing rows of data I tried to do some countif operations in Excel, but it was prohibitively slow So I am wondering if this kind of operation can be done in R? Excel Countif Examples Not Blank Greater Than Duplicate Or Unique Countif function in excel example