Problem in Notrend_test()

Hello,?I have the following vector in R,?
print(column_Data)[1] 42 33 34 28
But I get the following error on using notrend_test on this data as follows -?

notrend_test(column_Data)Error in notrend_test(column_Data) : set a proper window.

I am unable to find any information on Stackoverflow etc.?
Any help would be appreciated?
Thank you