Hi,
I have a dataset having monthly observations (from January to December)
over a period of time like (2000 to 2018). Now, I am trying to take an
average the value from January to July of each year.
The data looks like
Year Month Value
2000 1 25
2000 2 28
2000 3 22
.... ...... .....
2000 12 26
2001 1 27
....... ........
2018 11 30
20118 12 29
Can someone help me in this regard?
Many thanks in advance.
*Regards,*
*Md*
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