clear all 

/*
	Applied Microeconometrics I
	Stata tutorial 2023
	Atte Pudas
*/

*Part II

*Note: I am using Stata 18
*Note: the step numbers below refer to document "Stata_tutorial_session_2023_slides.pdf"  

*Step 20:
cd "YOUR FOLDER PATH HERE"

log using "tutorial_log2.log", replace

use elemapi2.dta, clear

*Step 21: Scatter plot with fitted line
twoway (scatter api00 enroll) (lfit api00 enroll)

*The look of the previous graph can be modified in many ways, for example: 
twoway (scatter api00 enroll, mcolor(pink) msymbol(circle_hollow) msize(small)) ///
	   (lfit api00 enroll, lcolor(green)), ///
	   graphregion(color(white)) ///
	   title("Title", color(black) size(medium)) ///
	   note("Notes here.", size(vsmall)) ///
	   xlabel(0(250)1500, labsize(small)) ///
	   ylabel( ,angle(horizontal) labsize(small)) ///
	   xtitle("Name of the x-variable",size(small)) ///
	   ytitle("Name of the y-variable", size(small)) ///
	   legend(order(2 1) size(vsmall) symy(2) symx(2) rows(2) position(3))
	   
	   
* we can save the previous graph as a "Stata graph" (.gph), or as .pdf, .jpg, .png,...
		graph save "example_graph", replace 
		graph export "example_graph.pdf", replace 
		graph export "example_graph.jpg", replace 		
	   
*Step 22: Slope
reg api00 enroll

*Step 23: Stata can be used as a calculator
di ln(30000)

di 45+10

di ln(30000)-ln(15000)


log close