Re: [R] use name (not values!) of a dataframe inside a funktion

2013-02-02 Thread William Dunlap
Another R-ish way of modifying an object with a function is to use 'replacement functions' (there must be other names, I'm not sure what the standard is) that let you use syntax like someProperty(myData, ...) - newProperty To do this define a function called `someProperty-` whose last

Re: [R] use name (not values!) of a dataframe inside a funktion

2013-02-01 Thread PIKAL Petr
Hi Maybe others can help you but here is my comment. I already use R for many years and never used such construction. Objects in global environment shall not be modified by functions it is a bad practice. Imagine you have some data frame you prepared and controlled in many steps and use some

Re: [R] use name (not values!) of a dataframe inside a funktion

2013-02-01 Thread Greg Snow
It is strongly discouraged in R to have functions that change data values in the global workspace (or any location other than their local environment). The usual procedure in R is to have your function return a modified version of the object and the user then decides what to do with it. They can

[R] use name (not values!) of a dataframe inside a funktion

2013-01-31 Thread Winfried Moser
Dear Listers, can anyone help me, please. Since several days i try to figure out, how to assign values, vectors, functions etc to variables with dynamically generated names inside of functions. Sometimes I succeed, but the success is rather arbitrary, it seems. up to now i don't fully