compare two datasets of unequal length and create a textfile

Hi I have two data sets (for two locations) containing following information:

Year Month Day Precipitation

One of the sets has 80 rows, the other 102

I should create a textfile which shows all the dates which occure in both data sets, hence I want a list of dates on which it rained on both locations. And I just don't know how to do that.

Thank you for your help

Answer 1

[Matt Kindig]

To read in the text files:

doc dlmread

To compare which dates occur in both files:

doc intersect

(The second output of intersect (i.e., the indices) may be helpful as well.