如何用可逆方法将3个矩阵组合成1个矩阵?

2024-09-29 22:16:53 发布

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我想重塑我的24x20矩阵'A''B''C',它们是从文本文件中提取出来的,在for循环中通过def normalize()进行规范化前后保存,这样每个循环都将是一行,3个矩阵的所有元素并排排列,如下所示:

[[A(1,1),B(1,1),C(1,1),A(1,2),B(1,2),C(1,2),...,A(24,20),B(24,20),C(24,20)] #cycle1
 [A(1,1),B(1,1),C(1,1),A(1,2),B(1,2),C(1,2),...,A(24,20),B(24,20),C(24,20)] #cycle2
 [A(1,1),B(1,1),C(1,1),A(1,2),B(1,2),C(1,2),...,A(24,20),B(24,20),C(24,20)]] #cycle3

到目前为止,基于@odyse建议,我在for循环的末尾使用了以下代码段:

for cycle in range(cycles):
dff = pd.DataFrame({'A_norm':A_norm[cycle] , 'B_norm': B_norm[cycle] , 'C_norm': C_norm[cycle] } , index=[0])
D = dff.as_matrix().ravel()
if cycle == 0:
    Results = np.array(D)
else:
    Results = np.vstack((Results, D2))
np.savetxt("Results.csv", Results, delimiter=",") 

但是当我在for循环中使用after def normalize()时有一个问题,尽管它有错误(ValueError),它也有warning FutureWarning: Method .as_matrix will be removed in a future version. Use .values insteadfor D = dff.as_matrix().ravel(),这并不重要,但是现在,因为它是未来警告,尽管如此,我通过使用print(data1.shape)检查了输出的形状在3个周期内是正确的,它是(31440),这是3行作为3个周期列数应为480=1440的3倍,但总体上不稳定。你知道吗

完整的脚本如下:

import numpy as np
import pandas as pd
import os

def normalize(value, min_value, max_value, min_norm, max_norm):
    new_value = ((max_norm - min_norm)*((value - min_value)/(max_value - min_value))) + min_norm
    return new_value

#the size of matrices are (24,20)
df1 = np.zeros((24,20))
df2 = np.zeros((24,20))
df3 = np.zeros((24,20))


#next iteration create all plots, change the number of cycles
cycles = int(len(df)/480)
print(cycles)
for cycle in range(3):
    count =  '{:04}'.format(cycle)
    j = cycle * 480
    new_value1 = df['A'].iloc[j:j+480]
    new_value2 = df['B'].iloc[j:j+480]
    new_value3 = df['C'].iloc[j:j+480]
    df1 = print_df(mkdf(new_value1))
    df2 = print_df(mkdf(new_value2))
    df3 = print_df(mkdf(new_value3))              
    for i in df:
        try:
            os.mkdir(i)
        except:
            pass
        min_val = df[i].min()
        min_nor = -1
        max_val = df[i].max()
        max_nor = 1
        ordered_data = mkdf(df.iloc[j:j+480][i])
        csv = print_df(ordered_data)
        #Print .csv files contains matrix of each parameters by name of cycles respectively
        csv.to_csv(f'{i}/{i}{count}.csv', header=None, index=None)            
        if 'C' in i:
            min_nor = -40
            max_nor = 150
            #Applying normalization for C between [-40,+150]
            new_value3 = normalize(df['C'].iloc[j:j+480], min_val, max_val, -40, 150)
            C_norm = print_df(mkdf(new_value3))
            C_norm.to_csv(f'{i}/norm{i}{count}.csv', header=None, index=None)  
        else:
            #Applying normalization for A,B between    [-1,+1]
            new_value1 = normalize(df['A'].iloc[j:j+480], min_val, max_val, -1, 1)
            new_value2 = normalize(df['B'].iloc[j:j+480], min_val, max_val, -1, 1)
            A_norm = print_df(mkdf(new_value1))
            B_norm = print_df(mkdf(new_value2))
            A_norm.to_csv(f'{i}/norm{i}{count}.csv', header=None, index=None) 
            B_norm.to_csv(f'{i}/norm{i}{count}.csv', header=None, index=None)
    dff = pd.DataFrame({'A_norm':A_norm[cycle] , 'B_norm': B_norm[cycle] , 'C_norm': C_norm[cycle] } , index=[0])
    D = dff.as_matrix().ravel()
    if cycle == 0:
        Results = np.array(D)
    else:
        Results = np.vstack((Results, D))
    np.savetxt("Results.csv", Results , delimiter=',', encoding='utf-8')
#Check output shape whether is (3, 1440) or not 
data1 = np.loadtxt('Results.csv', delimiter=',')
print(data1.shape)  

注1:我的数据是txt文件如下:

id_set: 000
     A: -2.46882615679
     B: -2.26408246559
     C: -325.004619528 

注2:我在文本文件中提供了3个周期的数据集: Text dataset

注3:为了将A,B,C参数按正确的顺序映射到矩阵中,我使用了print_df()mkdf()函数,但我没有提及,因为我把它简化为核心问题,只在本文开头留下了一个最小的例子。如果你需要的话请告诉我。你知道吗

预期结果应该通过分别在'A_norm''B_norm''C_norm'上完成for循环来完成,这些循环表示'A''B''C'的规范化版本,并输出我们称之为结果.csv“应该是可逆的以再生'A''B''C'循环矩阵再次保存在csv中。因此,如果您对反向部分有任何想法,请单独提及,否则只需使用print(data.shape)控制它,它应该是(31440)。 祝你今天愉快,提前谢谢!你知道吗


Tags: csvnonenormdfnewforvaluenp

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