ISLT returns a value of 1 if the value in the conditional variable contains the less than symbol: "<".  It returns 0 otherwise. 

SYNTAX:

ISLT(Cx)
where :
Cx is a conditional variable x

NOTES:

If you use the Vx syntax instead of the Cx syntax, the result will be blank if the input is blank.

EXAMPLES:

V90 = ISLT (C71)

In this example, variable 90 will be 1 when variable 71 cotains the "<" symbol and 0 otherwise, as demostrated below:

Here is the same example data, however, the variable reference has now been changed to use the Vx syntax:

V90 = ISLT(V71):