# index 0 is out of bounds for axis 0 with size 0

0

I have imported all the necessary libraries, I want to pass it to `FFT` and this is my code (I have already declared the fixes and put the address where you will extract everything from):

``````#k=f12.size+f24.size
k=(f12.size+f24.size)*100
tp1,tp2,tp3,tp4,tp5=np.zeros(k),np.zeros(k),np.zeros(k),np.zeros(k),np.zeros(k)
ytot=np.zeros(k)

cnt=0
for b in range(0,2):
if b==0:
n=f12.size
y1224=y12
else:
n=f24.size
y1224=y24
for a in range (0,n):
file = str(f12[a])
if int(file)>99:
DE = np.array(matdata['X'+file+'_DE_time']).T
else:
DE = np.array(matdata['X0'+file+'_DE_time']).T

x = np.fft.fft(DE)
Nd = DE.size
x2 = 2.0/Nd*np.abs(x[1:Nd//2])

Tm=1024 # Establecer el tamaño de la muestra de cada señal
#Nm=DE.size//Tm # Numero de muestras
#Nm=100 # Valor establecido por caso de ejemplo
N=Tm

Ini=0
Fin=Tm

for c in range (0,Tm):

F_DE=x2[0, Ini:Fin]

tp1[cnt]=F_DE.mean()
tp2[cnt]=np.sum(np.absolute(F_DE))/N
tp3[cnt]=np.sum(np.power(np.absolute(F_DE-tp2[a]), 2))/(N-1)
tp4[cnt]=np.sum(np.power(np.absolute(F_DE-tp2[a]), 3))/(N*(np.power(tp3[a],3/2)))
tp5[cnt]=np.sum(np.power(np.absolute(F_DE-tp2[a]), 4))/(N*(np.power(tp3[a],2)))

ytot[cnt]=y1224[a]

cnt=cnt+1
Ini=Ini+Tm
Fin=Fin+Tm
tp1 = np.asmatrix(tp1)
tp2 = np.asmatrix(tp2)
tp3 = np.asmatrix(tp3)
tp4 = np.asmatrix(tp4)
tp5 = np.asmatrix(tp5)

ytot = np.asmatrix(ytot)
``````

And I get the following error:

``````IndexError                                Traceback (most recent call last) <ipython-input-22-5bd17573a3b8> in <module>()
36         for c in range (0,Tm):
37
---> 38             F_DE=x2[0, Ini:Fin]
39
40             tp1[cnt]=F_DE.mean()

IndexError: index 0 is out of bounds for axis 0 with size 0
``````

I hope you can help me.

asked by Diego Steven Ochoa Rivas 08.12.2018 в 22:57
source