[R] Problem in Notrend_test()

[bharat rawlley]

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

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