Function calling problem

i am trying to call a function from another function. the function i am trying to call is named alignment_ladder_arson. the code i used to call the alignment_ladder_arson function is:

alignment_ladder_arson( directory, answer(1), answer(2))

where directory is a string and answer is 2 by 1 vector.

the following is the first line of the alignment_ladder_arson function:

function [outputdir]= alignment_ladder_arson (inputdatadir, highthresh, lowthresh )

can anyone see what is wrong? because the code doesnt run, the error message says that directory and lowthresh/highthres is undefined, but it is clearly defined in the function that i am calling from. Thanks

[per isakson]

The code you describe is correct - as I read your description. However, the code you test with Matlab is not. Please edit your question and the include the code (use Markup), which causes the error - and the error message.