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Re: FOR statement
Eli Beckerman wrote:
> I just tried running a FOR loop in the hopes
> of incrementing the variable "i" by steps of 0.25 as follows:
> FOR i=0.0, 100.0, 0.25 DO BEGIN
> And what I end up with is an array that starts
> with the value 0.75 and is incremented by steps of 1.
> I'm following the convention of the FOR statement as
> presented in IDL's online help. What am I doing wrong?!
You are using I as both an array index and a loop variable. This is not
a good idea.
Try this instead:
nx = 1000 ; number of values required
dx = 0.25 ; step size
x1 = 0.0 ; start value
radius = lindgen(nx) * dx + x1
Bottom line: Don't use loops to create mesh vectors or arrays.