The interpretation functions evaluate the contents of input text fields or expressions, and impose a specified data format on the resulting numeric value. With these functions, you can specify the format of the number, in accordance with its data type, including attributes such as: decimal separator, thousands separator,and date format.
The interpretation functions all return a dual value with both the string and the number value, but can be thought of as performing a string-to-number conversion. The functions take the text value of the input expression and generate a number representing the string.
In contrast, the formatting functions do the opposite: they take numeric expressions and evaluate them as strings, specifying the display format of the resulting text.
If no interpretation functions are used, QlikView interprets the data as a mix of numbers, dates, times, time stamps and strings, using the default settings for number format, date format, and time format, defined by script variables and by the operating system.
All interpretation functions can be used in both load scripts and chart expressions.
使用各個函數的下拉式清單，查看各函數的簡短描述及語法。按一下語法描述中的函數名稱以取得更多詳細資料。
