Minor warning about seq

I spent more time than I should have debugging a script because I wanted
   x<-seq(0,100)*0.1

but typed
   x<-seq(O:100)*0.1

seq(0:100) yields 1 to 101,

Which leads us to another rule: never use a variable called "O". I remember
this was a no-no even in my first Algol-course in 1967.

In a virginal Rgui:

x<-seq(O:100)*0.1 

Error in seq(O:100) : object 'O' not found
 
Dieter

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