Load time series in matlab matrix
in [Matlab]
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From: piero poli on 8 Jul 2010 05:04 Hello, I have a problem, that i don't how will be solved. I must load time series data in matlab matrix. The data are sampled at 5 hz, and there is a reference time t0. my idea is to use the reference time to calculate the position of the first sample: N2=(z2.sec+z2.mn*60+z2.hr*3600)/z2.tau where N2 is the point of the first sample. Naturally this number is not always real. When i'm going to load the data in matrix: DataD(1,N2:z2.npts+N2-1)=z2.trace(1:z2.npts); the N2 value is rounded, and so the point is shifted in time? My first question is: did i make some mistake? my idea is wrong maybe. More: how i can solve this? THX in advanced
From: Sergey Holmogorov on 15 Jul 2010 10:01 "piero poli" <pieropoli85(a)gmail.com> wrote in message <i144a4$4iv$1(a)fred.mathworks.com>... > Hello, > > I have a problem, that i don't how will be solved. I must load time series data in matlab matrix. The data are sampled at 5 hz, and there is a reference time t0. my idea is to use the reference time to calculate the position of the first sample: > > N2=(z2.sec+z2.mn*60+z2.hr*3600)/z2.tau > > where N2 is the point of the first sample. Naturally this number is not always real. When i'm going to load the data in matrix: > > DataD(1,N2:z2.npts+N2-1)=z2.trace(1:z2.npts); > > the N2 value is rounded, and so the point is shifted in time? > > My first question is: did i make some mistake? my idea is wrong maybe. > > More: how i can solve this? > You must reorganize your matrix, because N2 may be not integer, but matrix indexes must be integer. > THX in advanced
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