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Message |
Dhawan
Guest
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 Posted:
Wed Dec 07, 2005 11:56 pm Post subject:
How does matlab 'interp' work? |
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Hi
I have data x= [-970.84 -964.98 -959.11 -953.25 -947.38
-941.52.......................]
I want to interpolate my data so that i can get values:
[ -970.6 -964.74 -958.87 -953.01 -947.14 -941.28 -935.41.....]
If I use y = interp(x,50,2,0.1), I get a vector 50 times longer and i
have all the desired points in it. I took 50 by experimenting. Is there
any method by which R ie 50 can be determined? And how do i know what
values to pick from vector y?
Thanks |
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Fred Marshall
Guest
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| Posted:
Thu Dec 08, 2005 9:16 am Post subject:
Re: How does matlab 'interp' work? |
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"Dhawan" <anshu.dhawan@gmail.com> wrote in message
news:1133978193.696153.269050@g49g2000cwa.googlegroups.com...
| Quote: | Hi
I have data x= [-970.84 -964.98 -959.11 -953.25 -947.38
-941.52.......................]
I want to interpolate my data so that i can get values:
[ -970.6 -964.74 -958.87 -953.01 -947.14 -941.28 -935.41.....]
If I use y = interp(x,50,2,0.1), I get a vector 50 times longer and i
have all the desired points in it. I took 50 by experimenting. Is there
any method by which R ie 50 can be determined? And how do i know what
values to pick from vector y?
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Your statement of the problem makes no sense to me.
You have a vector [ a b c d e f .... ] with ...... undefined.
You want to operate on this vector to get a new vector [ r s t u v w ..... ]
again with .... undefined. And, you define the operation as
"interpolation".
But interpolation will add points which aren't shown.
So, I don't get it.
Fred |
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Dhawan
Guest
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| Posted:
Thu Dec 08, 2005 5:16 pm Post subject:
Re: How does matlab 'interp' work? |
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Hi
Yeah, interpolation will add points. Out of all points , I want to
select the points shown in 2nd matrix. And both arrays have 200 points.
Instead of writing all the points, I typed .......I hope it makes sense
now. I didnt get what is the fundamental theory behind interp function
in matlab?
Thanks |
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