Defining a string as series start date

[HollEviews]

Hello, please can you tell me how to set a string variable that is equal to the start date of a particular series? For example, working with quarterly data, the start date of series y is 1998Q1 and series x is 1990Q3, and I would like to create

string ystart = "1998Q1" and string xstart = "1990Q3" , with eviews automatically identifying the start date of each series.
Thank you!

[EViews Gareth]

Code: Select all

string ystart = y.@first

[HollEviews]

Many thanks for such a quick reply!