I am importing a data from excel by clicking on excel file and than click import.
the first column in my data is date, that is year , quarter. I want to create a plot of the variables. that i have done but in the figure i want to have date on the horizontal axis. I am having trouble in having date on the horizontal axis.
and i want to shade some of the periods in my plot. like from 1948 to 1950.
Please help me how i can do that.