How to graph multiple passage rates over time?
I actually figure the cost of airfares from Manhattan to Shanghai for a long period of time. However, you want to graph multiple airlines. Can you suggest a good way to run this (ie, websites quality that provide this information, etc.) and how do I set the X and Y axes? Wow, that’s a difficult task. Air fares can not be easily compared. Some tickets require advance purchase. Tickets can have rules that you must stay a Saturday night. Some tickets are changeable and nonrefundable. Weekdays price change. Connecting flights can have another price. Even the time of day can affect the price. So you must decide on some criteria to compare notes, for example: more economical to purchase tickets 30 days before departure and stay x days before returning. Departure at any time of day. Non-stop. Then you have to find a site like expedia.com and repeat this search every day / week during the period you wish, depending on the scale want. I guess Monday through Friday. X axis should be a time and p
