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Re: retrieving data from a plot in python.

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  Re: retrieving data from a plot in python. Gary Herron <gherron@digipen.edu> - 2013-04-09 11:00 -0700

#43213 — Re: retrieving data from a plot in python.

On 04/09/2013 10:33 AM, Debashish Saha wrote:
>
> suppose I have t= [0,7,10,17,23,29,31] f_t= [4,3,11,19,12,9,17] and I 
> have plotted f_t vs t.
>
> Now from this 7 data points plotting if I want to retrieve 100 data 
> points and save them in a text file. What do I have to do?
>
> What I am asking is not a fitting of the plot. I know between two 
> points plot is linear.
>
> What I am asking If I create a array like t=np.arange(0,31,.1) ,then 
> what is the corresponding array of f_t which agrees well with the 
> previous plot,i.e,for any t between t=0 to t=7, f_t will be determined 
> by using a straight line connecting (0,4) and (7,3) and so on.
>
>
>

Are you asking a MATH question, or a Python question.

This is, do you need the (linear) equation which performs the 
evaluation, or help in producing a program to do the calculation?

Gary Herron


-- 
Dr. Gary Herron
Department of Computer Science
DigiPen Institute of Technology
(425) 895-4418

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