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+--- Thread: Adding shifted data set to data set (/thread-35837.html)
Adding shifted data set to data set - xquad - Dec-21-2021
Hello,
I have a data set that I have shifted by a certain amount.
The unshifted and shifted data set are plotted as you can see in the attached figure.
using
... plt.plot(t+fwhm, Vs/np.max(Vs), color='r') plt.plot(t, Vs/np.max(Vs))how can the sum of the shifted and unshifted data set be plotted?
Both t and Vs datasets are of type <class 'numpy.ndarray'>.
Regards,
xquad
RE: Adding shifted data set to data set - xquad - Dec-22-2021
I tried:
import matplotlib.pyplot as plt from scipy import interpolate x = t y = Vs f = interpolate.interp1d(x, y, fill_value = 'extrapolate') xnew = t + fwhm ynew = f(xnew) plt.plot(x, y, 'o', xnew, ynew, 'k') plt.xlim(-0.25e-7, 0.25e-7) plt.show()but the interpolated data will not be shifted...
RE: Adding shifted data set to data set - xquad - Dec-22-2021
ah found it:
xnew = t + fwhm print(np.max(xnew), np.max(t)) ynew = f(xnew) # use interpolation function returned by `interp1d` print(np.argmax(ynew), np.argmax(y)) plt.plot(x, y) plt.plot(x, ynew, 'r') plt.plot(x, y+ynew) plt.xlim(-0.25e-7, 0.25e-7) plt.show()its visible shifted if plotted on the same axis. (I found it after noticing a difference in np.argmax())
RE: Adding shifted data set to data set - Larz60+ - Dec-22-2021
Thanks for sharing the solution.