C++, stats, and histograms

Good Day All,
Im seeking advice and or guidance with the following task.

I want to create a small app that produces histograms. Esentially, Id like to beable to read in a data file, bin it then create a histogram.

Does anyone know of any libraries (open source) that make programming such a task relativley simple? Ideally somthing exists where by one can simply feed a vector to a function and have a histogram come out the other end. Too bad I havent been able to find such a library. I am currently playing around with GNUplot and a C++ interface for MSVC6.

Any suggestions or comments would be welcome!

Best regards
Jeremy

Nah, I don't know any libraries like that. In fact, histrograms are very common assignments in low level programming classes because of it.

It's real simple to make with loops and such.

Thanks for the response.
Im more concerned with finding a lib to allow easy visualization of a histogram than I am with the math.