I'm trying to plot this
Plot[Fit[med,{1,x},x],{x,0,10}]
Why this doesn't work? I find out that if I do Plot[Evaluate@Fit[med,{1,x},x],{x,0,10}] works fine. But can somebody explain me why this happens in first place?
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1 Answer
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Plot has attribute HoldAll, therefore the expression Fit is hold in an unevaluated form.
Using
Attributes@Plot
(* out *)
{HoldAll, Protected}
reveals the attributes
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$\begingroup$ Thanks, and why this is useful? I mean, the holdall $\endgroup$ Commented Aug 23, 2014 at 13:46
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$\begingroup$ Sometimes we don't want the argument to be evaluated at once, please have a look at the examples given by documentation center $\endgroup$– hieronCommented Aug 23, 2014 at 13:50