-
Notifications
You must be signed in to change notification settings - Fork 0
/
7 CDF matching correction range of rain.py
277 lines (197 loc) · 6.4 KB
/
7 CDF matching correction range of rain.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
# ---
# jupyter:
# jupytext:
# formats: ipynb,py:light
# text_representation:
# extension: .py
# format_name: light
# format_version: '1.3'
# jupytext_version: 1.0.2
# kernelspec:
# display_name: Python 3
# language: python
# name: python3
# ---
# +
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
from pandas import Timedelta
from sklearn.metrics import r2_score
from scipy.stats import pearsonr
plt.style.use("bmh")
from IPython.core.debugger import set_trace
# +
df = pd.read_csv("DATA/eventos6h.csv",parse_dates=["start","duration"])
df.dropna(how="any", axis=0,inplace=True)
# -
df.dropna(axis=1,inplace=True)
df.duration = df.duration.apply(pd.to_timedelta)
df.head()
pares = [(0,10),(10,20),(20,30),(30,40),(40,50),(50,60)]
def plot_function(radar_par,pluvi_par,f,par,save = False):
diff = pluvi_par - radar_par
r2 = f"R2: {round(r2_score(diff, f(radar_par)),4)}"
name = f"IMAGENS/cdf2/function-{par}.png"
plt.figure()
plt.title("Range " + str(par))
plt.scatter(radar_par, diff)
x = np.linspace(par[0],par[1])
y_pred = f(x)
plt.plot(x, y_pred,"lightblue")
plt.ylabel("Difference Gauge - Radar (mm)")
plt.xlabel("Radar (mm)")
x = .8 * (plt.xlim()[1] - plt.xlim()[0]) + plt.xlim()[0]
y = .15 * (plt.ylim()[1] - plt.ylim()[0]) + plt.ylim()[0]
plt.grid(False)
plt.annotate(r2,(x,y))
if save:
plt.savefig(name)
plt.show()
functions = {}
radar = df.RADAR.sort_values().values
pluvi = df.Pluviometro.sort_values().values
pares = [(0,5),(5,10),(10,20),(20,30),(30,40),(40,50),(50,60)]
for par in pares:
cond1 = np.where(radar >= par[0])
cond2 = np.where(radar < par[1])
start = cond1[0][0]
end = cond2[0][-1]
radar_par = radar[start:end]
pluvi_par = pluvi[start:end]
diff = pluvi_par - radar_par
f = np.poly1d(np.polyfit(radar_par, diff, 5))
functions[par[1]] = f
plot_function(radar_par,pluvi_par,f,par,save=True)
df.head()
bias = functions[20](df.RADAR[df.RADAR < 20])
serie = df.iloc[122]
serie
serie["RADAR"] < 20
functions[40](serie["RADAR"])
serie["RADAR"] - functions[40](serie["RADAR"]) if serie["ERROR"] < 0 else functions[40](serie["RADAR"]) + serie["RADAR"]
def correction(serie):
for par in pares:
if serie["RADAR"] < par[1]:
new_serie = serie.copy()
y = functions[par[1]](serie["RADAR"])
corr = serie["RADAR"] - y if serie["ERROR"] < 0 else serie["RADAR"] + y
new_serie["CORREC_RADAR"] = corr
return new_serie
correction(serie)
df_n = df.apply(correction,axis=1)
any(df_n.CORREC_RADAR < 0)
df_n.CORREC_RADAR[df_n.CORREC_RADAR < 0] = 0
any(df_n.CORREC_RADAR < 0)
df_n.head()
df_n["ERROR_CORR"] = df.Pluviometro - df_n.CORREC_RADAR
df_n.head()
df_n.describe()
pearsonr(df_n.Pluviometro.values,df_n.RADAR.values)
pearsonr(df_n.Pluviometro.values,df_n.CORREC_RADAR.values)
for par in pares:
df_20 = df_n.query("RADAR >= @par[0] & RADAR < @par[1]")
print(par)
print(pearsonr(df_20.Pluviometro.values,df_20.RADAR.values)[0] ** 2)
print(pearsonr(df_20.Pluviometro.values,df_20.CORREC_RADAR.values)[0] ** 2)
print()
functions
df_n.sort_values("RADAR",inplace=True)
df_n.dropna(axis=0,how="all",inplace=True)
df_n.tail()
par = pares[1]
radar = df_n.RADAR.values
pluvi = df_n.Pluviometro.values
corr_radar = df_n.CORREC_RADAR.values
cond1 = np.where(radar >= par[0])
cond2 = np.where(radar < par[1])
start = cond1[0][0]
end = cond2[0][-1]
radar_par=radar[start:end]
pluvi_par = pluvi[start:end]
corr_par = corr_radar[start:end]
# +
def plot_scatter(ax, x, y, ylabel):
x_ = np.arange(0,80)
f = np.poly1d(np.polyfit(x,y,1))
y_ = f(x_)
ax.set_title(f"{ylabel} x GAUGE")
ax.scatter(x,y)
ax.set_ylim(0,80)
ax.set_xlim(0,80)
ax.set_ylabel(ylabel)
ax.set_xlabel("GAUGE")
ax.plot(x_,y_,"lightblue")
r2 = f"R2: {round(pearsonr(x,y)[0]**2,3)}"
ax.annotate(r2,(65,10))
ax.grid(False)
;
# -
def plot_figure(radar_par,pluvi_par,corr_par,save=False,name=None):
fig,(ax1,ax2) = plt.subplots(1,2,figsize=(15,5))
plot_scatter(ax1,radar_par,pluvi_par,"RADAR")
plot_scatter(ax2,corr_par,pluvi_par,"CORRECTED RADAR")
if save and name:
name = f"IMAGENS/cdf2/Distribution-{name}.png"
plt.savefig(name)
plt.show();
plot_figure(radar_par,pluvi_par,corr_par)
# +
fig,(ax1,ax2) = plt.subplots(1,2,figsize=(15,5))
ax1.scatter(radar_par,pluvi_par)
ax2.scatter(corr_par, pluvi_par)
plt.show();
# -
def plot_cdf(radar_par, pluvi_par, corr_par,save=False,name=None):
cdf = np.arange(len(radar_par)) / len(radar_par)
radar_sort = radar_par.copy()
radar_sort.sort()
pluvi_sort = pluvi_par.copy()
pluvi_sort.sort()
corr_sort = corr_par.copy()
corr_sort.sort()
plt.figure()
plt.plot(radar_sort, cdf,color="green",label="RADAR")
plt.plot(pluvi_sort, cdf,color="darkblue",label="Gauge")
plt.plot(corr_sort, cdf,color="blue",label="Correcter Radar")
plt.legend()
plt.grid(False)
if save and name:
name = f"IMAGENS/cdf2/cdf-{name}.png"
plt.savefig(name)
plt.show();
par = pares[1]
radar = df_n.RADAR.values
pluvi = df_n.Pluviometro.values
corr_radar = df_n.CORREC_RADAR.values
for par in pares:
cond1 = np.where(radar >= par[0])
cond2 = np.where(radar < par[1])
start = cond1[0][0]
end = cond2[0][-1]
radar_par=radar[start:end]
pluvi_par = pluvi[start:end]
corr_par = corr_radar[start:end]
plot_figure(radar_par,pluvi_par,corr_par,save=True,name=str(par))
plot_cdf(radar_par,pluvi_par,corr_par,save=True, name=str(par))
radar = df_n.RADAR.values
pluvi = df_n.Pluviometro.values
corr = df_n.CORREC_RADAR.values
plot_figure(radar,pluvi,corr,save=True,name="All")
plot_cdf(radar,pluvi,corr,save=True,name="All")
df_5 = df_n[df_n.RADAR >= 5]
df_5.head()
radar = df_5.RADAR.values
pluvi = df_5.Pluviometro.values
corr = df_5.CORREC_RADAR.values
plot_figure(radar,pluvi,corr,save=True,name="All-above5")
plot_cdf(radar,pluvi,corr,save=True,name="All-above5")
df_10 = df_n[df_n.RADAR >= 10]
df_10.head()
radar = df_10.RADAR.values
pluvi = df_10.Pluviometro.values
corr = df_10.CORREC_RADAR.values
plot_figure(radar,pluvi,corr,save=True,name="All-above10")
plot_cdf(radar,pluvi,corr,save=True,name="All-above10")
df_10.head()
df_10.to_csv("DATA/eventos-above10.csv",index=False)