How Do You Assign Values in a Data Frame?
Here is a comprehensive breakdown on How Do You Assign Values in a Data Frame.
Assigning values to C and C++ variables
To assign a value to a C and C++ variable, you use an assignment expression. Assignment expressions assign a value to the left operand. The left operand must be a modifiable lvalue. An lvalue is an expression representing a data object that can be examined and altered.