world-ecoregion/utils.py
2019-02-12 08:41:33 +03:30

40 lines
1.2 KiB
Python

import numpy as np
import tensorflow as tf
import pandas as pd
from constants import *
inputs = ['elevation', 'distance_to_water']
output = 'biome_num'
def dataframe_to_dataset_biomes(df):
rows = df.shape[0]
# 8 for seasonal temp and precipitation
# 3 for latitude, elevation and distance_to_water
columns = 11
tf_inputs = np.empty((0, columns))
tf_output = np.empty((0))
latitude = np.array(df.index.get_level_values(1))
longitude = np.array(df.index.get_level_values(0))
for year in range(MIN_YEAR, MAX_YEAR + 1):
local_inputs = list(inputs)
for season in SEASONS:
local_inputs += [
'temp_{}_{}'.format(season, year),
'precip_{}_{}'.format(season, year)
]
local_df = df[local_inputs]
local_df.loc[:, 'latitude'] = pd.Series(latitude, index=local_df.index)
tf_inputs = np.concatenate((tf_inputs, local_df.values), axis=0)
tf_output = np.concatenate((tf_output, df[output].values), axis=0)
tf_inputs = tf.cast(tf_inputs, tf.float32)
tf_output = tf.cast(tf_output, tf.int32)
return tf.data.Dataset.from_tensor_slices((tf_inputs, tf_output))