i have the random data in which i plotted graph for finding the peaks which is originated from zero i used this code
x = np.array([0, 7, 18, 24, 26, 27, 26, 25, 26, 16, 20, 16, 23, 33, 27, 27,
22, 26, 27, 26, 25, 24, 25, 26, 23, 25, 26, 24, 23, 12, 22, 11, 15, 24, 11,
12, 11, 27, 19, 25, 26, 21, 23, 26, 13, 9, 22, 18, 23, 26, 26, 25, 10, 22,
27, 25, 19, 10, 15, 20, 21, 13, 16, 16, 15, 19, 17, 20, 24, 26, 20, 23, 23,
25, 19, 15, 16, 27, 26, 27, 28, 24, 23, 24, 27, 28, 30, 31, 30, 9, 0, 11,
16, 25, 25, 22, 25, 25, 11, 15, 24, 24, 24, 17, 0, 23, 21, 0, 24, 26, 24,
26, 26, 26, 24, 25, 24, 24, 22, 22, 22, 23, 24, 26])
import numpy as np
import matplotlib.pyplot as plt
from scipy.signal import find_peaks
zero_locs = np.where(x==0) # find zeros in x
search_lims = np.append(zero_locs, len(x)) # limits for search area
diff_x = np.diff(x) # find the derivative of x
diff_x_mapped = diff_x > 0 # find the max's of x (zero crossover # points)
# from every zero, search for the first peak within the range of current
# zero location to next zero location
peak_locs = []
for i in range(len(search_lims)-1):
peak_locs.append(search_lims[i] +
np.where(diff_x_mapped[search_lims[i]:search_lims[i+1]]==0)[0][0])
fig= plt.figure(figsize=(19,5))
plt.plot(x)
plt.plot(np.array(peak_locs), x[np.array(peak_locs)], "x", color = 'r')
this is my code actually this is vehicle speed data for every 0 to maximum peak it is detecting correctly but the thing is it should detect above 26 i tried unable to get it. my graph output is for starting point only it is detecting correctly remaining 3 points it should not be detected only the peak value 0 to above 26 only it has to detect how can i do it
