Filtering the signal

Hello,I want to perform filtering to the FFT output which is read from xls file.Here i am facing this bug(flts: Arguments #1 and #2: Incompatible sizes.).I uploaded my program file here without changing the "wfir" filter.Kindly help me to fix this bug.

Scilab 23-06-21, 11:18 a.m. husee

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