>From reading the "[ROOT] function can not be compiled" thread from last
June, I understand that only one TF1 can be build from the same CINT
function. Is this still the case? The claim was that there are tricks to
solve most problems, as there was in that thread.
I have the following situation, and I would like to know if there is a
trick. I have a Bethe-Bloch function which I use to make a TF1:
TF1 bb("bb", bethebloch, 0, 5 , 4);
and I know that the width of the distribution is a function of momentum
(and may even me a constant). If I want to draw the bb function with the
upper/lower 1-sigma contours, I would like to imagine creating a function
like:
TF1 width("width", "[0]*bb", 0, 5, 1);
and then adding it to the original function to get
TF1 upper("upper", "bb+width", 0, 5);
TF1 lower("lower", "bb-width", 0, 5);
Since 'width' also depends on bethebloch, I get the "Function width cannot
be compiled" warning, since bethebloch was already interpreted for the bb
function. I figure 'upper' and 'lower' will have the same problems.
I'm in 3.00/06 on SunOS.
In plotting (or even getting numerical values), I could just .Eval(x) at
each x and use a separate resolution function to determine the high/low
values, but the ability to do what is above seems more useful in the long
run.
Chris
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