display "Hello, world!"

sysuse auto.dta

tabulate foreign headroom

// Dataset with test scores
use "https://stats.idre.ucla.edu/stat/stata/notes/hsb2", clear
scatter read math, title("Reading score vs Math score")
scatter math science, title("Math score vs Science score")

quietly scatter read math, title("Reading score vs Math score")

display "displayed"
// display "comment"

display "line continuation " /// comment
    "comment"

* display "not displayed"

display "displayed1"
/*
display "displayed2"
*/
display "displayed3"

%head 5

%help summarize

local local1 "foo"
local local2 "bar"
local abcd "foo bar"

%locals

%locals loc

%globals

cap ssc install estout
sysuse auto, clear
eststo clear
eststo: qui regress price mpg rep78
eststo: qui regress price mpg rep78 gear_ratio trunk
eststo: qui regress price mpg rep78 gear_ratio trunk weight displacement

%html
esttab, label title("Regression Table") html

sysuse auto, clear

#delimit ;
display "Hello, world!";

display "Hello, world!"

%delimit

#delimit cr

sysuse auto, clear

mata

%status

y    = st_data(., "price")
X    = st_data(., "mpg trunk")
n    = rows(X)
X    = X,J(n,1,1)
XpX  = quadcross(X, X)
XpXi = invsym(XpX)
b    = XpXi*quadcross(X, y)

b'

end

%status