How can i call the private method in controller by link

i have method in controller called scenario_population

def scenario_population  ..... end

i have link_to method in view

<%= name_id %> #without form <%= link_to 'run', # %>

how can call controller method link_to button here? don't have created routes private method in controller.

please suggest me this? thanks

since 'link_to' create link element, need url put link's href. you're looking impossible. you'll have create public route access controller method.

KHS