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[英]Import multiple CSV files into pandas and concatenate into one DataFrame
[英]Not full Import multiple csv files into pandas and concatenate into one DataFrame
请帮助我找到从多个 csv 文件导入数据到 python 中的一个 DataFrame 的问题的解决方案。代码是:
import pandas as pd
import os
import glob
path = r'my_full_path'
os.chdir(path)
results = pd.DataFrame()
for counter, current_file in enumerate(glob.glob("*.csv")):
namedf = pd.read_csv(current_file, header=None, sep=",", delim_whitespace=True)
results = pd.concat([results, namedf], join='outer')
results.to_csv('Result.csv', index=None, header=None, sep=",")
问题是部分数据正在移动到行而不是根据需要移动到新列。 我的代码有什么问题?
PS:我发现有关将多个 csv 文件导入 DataFrame 的问题,例如: Import multiple csv files into pandas and concatenate into one DataFrame ,但解决方案不能解决我的问题:-(
它是通过在pd.read_csv.read_csv()-> append(dataFrames)-> concat中使用join来解决的:
def get_merged_files(files_list, **kwargs):
dataframes = []
for file in files_list:
df = pd.read_csv(os.path.join(file), **kwargs)
dataframes.append(df)
return pd.concat(dataframes, axis=1)
你可以尝试使用这个:
import pandas as pd
import os
files = [file for file in os.listdir('./Your_Folder')] # Here is where all the files are located.
all_csv_files = pd.DataFrame()
for file in files:
df = pd.read_csv("./Your_Folder/"+file)
all_csv_files = pd.concat([all_csv_files, df])
all_csv_files.to_csv("All_CSV_Files_Concat.csv", index=False)
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