I am sorry if my question sounds really basic. I recently use Knime IF function in math formula to return String values if the conditions are fullfiled or not. But apparently the function doesn't recognize my string values since I always have "?" as output.

Maybe you could post an example of your input data and desired output data in a different thread? Then I’m sure there would be some folks willing to jump in and help.

Hi
I have the same problem where I am trying to use an IF function to deliver strings.
I tried installing the Column Expressions but it doesn’t support IF functions.
I don’t know java - is there a way I can use an IF function in KNIME without using java?
Thanks

Edit: I found out how to do IF functions and nested IF functions in Column Expressions:
if(state1) {
// do this, if state1 evaluates to true
} else {
if(state2) {
// do this, if state1 evaluates to false and state2 evaluates to true
} else {
// do this if neither state1 nor state2 evaluate to true
}
}