Dear- As usual, most want to the global market up/down, for example, http://www.bloomberg.com/markets/ For my (his) own layout, we like to program ourselves, with own(programmable) frame and layout. Here I like to use R to retrieve, for example, 1) DowJone 2) SnP 3) Germany and France market changes with % figure and with colored bar ***************************************************************************** Now, what is the R command to retrieve up/down percent, so that I can see everything in the morning as soon as I run MORNING() in R every morning? Probably it includes require() and/or library().
Goto odesk.com and get someone to program this for you. Tell them to look into quantmod and quandl (both for data) and possibly ggplot2 for your graphs.
Thanks for reply. I will check odesk.com ******************************** It seems general freelancing work. For some special area for API use in selected brokerage (such as IB and TradeKing), is there any other suitable website to find some helper?