How to make a line graph to reflect the figures of 8 courses that are 8 variables

[Alexandra Otero]

I'm trying to do it with this code, but it doesn't work for me

foreach i of numlist 1/8 {
twoway (line enrollmentc`i' completedc`i', ///
title("Evolución de cursos matriculados y completados para cada subvariable") ///
xlabel("Iteraciones") ///
ylabel("Número de cursos") ///
ytitle("Número de cursos", format(%2.2f)) ///
legend(label(1 "Matriculados") label(2 "Completados")) ///
if t_1==1 | t_2==1), ///
title("") ///
xlabel("") ///
ylabel("") ///
legend(off)
}

What I expect the graph to record are the percentages for each of those 8 courses for the completedc and enrollmentc variable for 3 scenarios, the first when t_1==1 | t_2==1, for the second scenario when treatment==1 and for the second scenario when treatment==2

[Andrew Musau]

You should show the error message that you get from running the code.

legend(label(1 "Matriculados") label(2 "Completados")) ///
if t_1==1 | t_2==1)

The -if- qualifier cannot be part of the options. Perhaps try

legend(label(1 "Matriculados") label(2 "Completados"))) ///
if t_1==1 | t_2==1

That is, close out the (line ...) plot and have the -if- qualifier outside this. Otherwise, show exactly what you typed and the error. You should ensure that the command runs before looping the code.