Support Excel column notation in condition string for Counif() function

Version: 2018b

Type: Features

Category: Data Handling

Subcategory: Workbook and Worksheet

Jira: ORG-16882

For Averageif(), Countif(), and Sumif() function, you can use Excel column name in condition string argument now. E.g,

countif(a, "A>0") //Before Origin 2018b, must use countif(a, "col(A)>0")

Also, the performance of these functons is improved.