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Commit 62e4f7ad authored by cb1e5ba91280d02583d0604166e71c1c's avatar cb1e5ba91280d02583d0604166e71c1c
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module3/exo3/exercice.ipynb
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......@@ -12,7 +12,7 @@
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......@@ -675,7 +675,7 @@
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......@@ -747,7 +747,7 @@
"dtype: bool"
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......@@ -769,7 +769,7 @@
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......@@ -917,7 +917,7 @@
"1958-07-01 315.22 315.86 315.19 "
]
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......@@ -944,7 +944,7 @@
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......@@ -981,7 +981,7 @@
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......@@ -1039,7 +1039,7 @@
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......@@ -1114,7 +1114,7 @@
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......@@ -1144,7 +1144,7 @@
"s5 = data_cube.co2 - data_cube.co2.mean()\n",
"s5_fft = np.fft.fft(s5) # calcul de la transformee de Fourier et des frequences\n",
"\n",
"n = s1.size\n",
"n = s5.size\n",
"dt = 1/12\n",
"pds_s5 = (dt/n) * np.abs(s5_fft)**2 # densité spectral de puissance\n",
"freq = np.fft.fftfreq(n, d=dt) # fréquences associées\n",
......@@ -1171,7 +1171,7 @@
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......@@ -1187,9 +1187,9 @@
}
],
"source": [
"indide_f = np.where(pds_s1 > 5)\n",
"indide_f = np.where(pds_s5 > 5)\n",
"f_lente = indide_f[0][0] * f1\n",
"indide_f = np.where(pds_s1 > 20)\n",
"indide_f = np.where(pds_s5 > 20)\n",
"f_rapide = indide_f[0][-1] * f1\n",
" \n",
"print(f' Estimation de la frequence lente : {f_lente} \\n Esitmation de la fréquence rapide : {f_rapide}')"
......@@ -1197,7 +1197,7 @@
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......@@ -1225,7 +1225,7 @@
"\n",
"p0 = [f0,ampl0,phase0,offset0]\n",
"x = np.array(data_cube['Date 2'])\n",
"popt_l, pcov_l = curve_fit(my_sin, x , s1, p0 = p0)\n",
"popt_l, pcov_l = curve_fit(my_sin, x , s5, p0 = p0)\n",
"print(popt_l)\n",
"ylent = my_sin(x,popt_l[0],popt_l[1],popt_l[2],popt_l[3])\n",
"fl = p0[0]\n",
......@@ -1234,7 +1234,7 @@
"f0 = f_rapide \n",
"ampl0= 3.5\n",
"p0 = [f0,ampl0,phase0,offset0]\n",
"popt_r, pcov_r = curve_fit(my_sin, x , s1, p0 = p0)\n",
"popt_r, pcov_r = curve_fit(my_sin, x , s5, p0 = p0)\n",
"print(popt_r)\n",
"yrapide = my_sin(x,popt_r[0],popt_r[1],popt_r[2],popt_r[3]) \n",
"fr = p0[0]"
......@@ -1242,7 +1242,7 @@
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......@@ -1270,14 +1270,14 @@
"ax2.grid(linestyle='--', linewidth=1)\n",
"\n",
"ax1.set(title = 'Variation concentration CO2 lente',xlabel='Période',ylabel='Concentration (ppm)')\n",
"ax1.plot(x,ylent,x,s1);\n",
"ax1.plot(x,ylent,x,s5);\n",
"ax2.set(title = 'Variation concentration CO2 rapide',xlabel='Période',ylabel='Concentration (ppm)')\n",
"ax2.plot(x,yrapide,x,s1);"
"ax2.plot(x,yrapide,x,s5);"
]
},
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......@@ -1309,7 +1309,7 @@
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......@@ -1636,7 +1636,7 @@
"[63 rows x 12 columns]"
]
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......@@ -1648,7 +1648,7 @@
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......@@ -1836,7 +1836,7 @@
"max 411.850000 410.080000 408.550000 408.430000 410.280000 411.850000 "
]
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......@@ -1847,7 +1847,7 @@
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......@@ -2002,7 +2002,7 @@
"1962 0.7890 0.8740 0.9562 "
]
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......@@ -2041,121 +2041,30 @@
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"source": [
"d"
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"data": {
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"0.1246"
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"0.0416+0.083"
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{
"data": {
"text/html": [
"<div>\n",
"<style scoped>\n",
" .dataframe tbody tr th:only-of-type {\n",
" vertical-align: middle;\n",
" }\n",
"\n",
" .dataframe tbody tr th {\n",
" vertical-align: top;\n",
" }\n",
"\n",
" .dataframe thead th {\n",
" text-align: right;\n",
" }\n",
"</style>\n",
"<table border=\"1\" class=\"dataframe\">\n",
" <thead>\n",
" <tr style=\"text-align: right;\">\n",
" <th></th>\n",
" <th>index</th>\n",
" <th>Yr</th>\n",
" <th>Mn</th>\n",
" <th>Date 1</th>\n",
" <th>Date 2</th>\n",
" <th>s1</th>\n",
" <th>s2</th>\n",
" <th>s3</th>\n",
" <th>s4</th>\n",
" <th>s5</th>\n",
" <th>s6</th>\n",
" </tr>\n",
" <tr>\n",
" <th>period</th>\n",
" <th></th>\n",
" <th></th>\n",
" <th></th>\n",
" <th></th>\n",
" <th></th>\n",
" <th></th>\n",
" <th></th>\n",
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" <th></th>\n",
" <th></th>\n",
" </tr>\n",
" </thead>\n",
" <tbody>\n",
" <tr>\n",
" <th>2020-01-01</th>\n",
" <td>744</td>\n",
" <td>2020</td>\n",
" <td>1</td>\n",
" <td>43845</td>\n",
" <td>2020.041</td>\n",
" <td>413.37</td>\n",
" <td>413.33</td>\n",
" <td>413.11</td>\n",
" <td>413.05</td>\n",
" <td>413.37</td>\n",
" <td>413.33</td>\n",
" </tr>\n",
" </tbody>\n",
"</table>\n",
"</div>"
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"text/plain": [
" index Yr Mn Date 1 Date 2 s1 s2 s3 s4 \\\n",
"period \n",
"2020-01-01 744 2020 1 43845 2020.041 413.37 413.33 413.11 413.05 \n",
"\n",
" s5 s6 \n",
"period \n",
"2020-01-01 413.37 413.33 "
]
},
"execution_count": 165,
"metadata": {},
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}
],
"outputs": [],
"source": [
"df[-1:]"
]
......
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