[EMAIL PROTECTED] wrote:
>
> Madhusudan> Is it possible to convert a very long list of strings to a
> Madhusudan> list of floats in a single statement ?
>
> Madhusudan> I have tried float(x) and float(x[:]) but neither work. I
> Madhusudan> guess I would have to write a loop if there isn't a way.
>
> Try:
>
> >>> los = ["123.0", "2", "1e-6"]
> >>> map(float, los)
> [123.0, 2.0, 9.9999999999999995e-07]
> >>> [float(s) for s in los]
> [123.0, 2.0, 9.9999999999999995e-07]
>
> Skip
Thanks. Now, a slightly more complicated question.
Say I have two lists of floats. And I wish to generate a list of floats that
is a user defined function of the two lists.
I tried :
def rpyth(x,y):
r=sqrt(pow(x,2.0)+pow(y,2.0))
return r
r1n=map(rpyth,x2n[1:len(x2n)-1],y2n[1:len(y2n)-1])
And I get an error complaining about floats.
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