Formula Errors in Fathom

Briefly

A list of errors you can make in Fathom's formula editor.

Despite your best efforts, you will probably commit formula errors. Here is a list of what they are, and what they mean.

#Name not recognized

You have referred to a symbol that Fathom doesn't recognize. For example, you may have misspelled the name of an attribute.

#Format error

The formula is poorly formed, e.g., a + ?

Or, you have referred to a function that Fathom doesn't recognize. You may have misspelled it, as in mena( ). (mean)

#Types incompatible

You have given a function an argument of the wrong type. For example, sin("hello") gives this error.

#Argument count error

You've given a function the wrong number of arguments. For example, even(3, 4, 5) gives this error.

#Domain error

You've tried to evaluate a function outside its domain. For example, percentile(110, height) returns this error because percentiles must be between 0 and 100

#Circular reference

You've used the attribute you're defining in the formula (perhaps indirectly, through another attribute).

#Evaluation error

This is a catchall used when Fathom cannot otherwise explain why the formula did not produce a result.