search for: rgument

Hi, How to make an if condition work, if the condition inside if() is created dynamically ,and that is a string .If i type teh dynamically created string the if works fine but when dynamically created,it is a string and going inside the if() ,an error is thrown saying : rgument is not logical ..I even tried changing teh mode of the string to logical,but it doesn't work Say my dynamically created string is :-- str<- name=='tom' || name=='harry' || name=='tina' where the names are diffrent for diffrent DBs. if(name=='tom' || name==&...

...cal vector showing the ways that it is and is not standard. One thing I think is conceptually or procedurally difficult about this project is that I think ?standardness? should be determined by what a function does, rather than by how it does it, so that a primitive function that takes unevaluated arguments positionally could still have standard matching, scoping, etc., by internal emulation. A related goal is to identify which evaluation steps most often use an alternative form, and perhaps determine if there is more than one such alternative. Finally, an easier short-term goal is simply to find ins...