hello sir,

i have used the ramanathan data4-1 file which is about prices of single family home.

using Data>sample file>ramanathan>data4-1 which contain as the independent vriables and price as the dependent variable.

so i have imported the data and then i selected the

model.robust estimation>quantile regression

and

added price to dependent variable panel

and

sqft,

bedrms,

baths

as the independent variables.

then i have specified 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

as the tau value

and then 

i clicked on ok

but i encountered a error saying

 

 

,