Read multiple CSV files into separate data frames
Quick draft, untested:
Use
list.files()
akadir()
to dynamically generate your list of files.This returns a vector, just run along the vector in a
for
loop.Read the i-th file, then use
assign()
to place the content into a new variable file_i
That should do the trick for you.
Reading multiple files into separate data frames
You can probably do something like this:
import glob
d = {}
base_name = "df{}"
flag = 0
for filename in glob.glob('*.xlsx'):
d[base_name.format(flag)] = pd.read_excel(filename, sheet_name = 'Bilan')
flag += 1
Here you create a base_name
for your name and a flag
to track the position of your file and then use those variables to construct a full filename.
reading multiple csv and saving into separate dataframes
seems like you're overwriting the same variable again and again
path = os.getcwd()
csv_files = glob.glob(os.path.join(r'blabla/Data', "*.csv" ))
list_of_dfs = []
for f in csv_files:
df = pd.read_csv(f)
print('Location:', f)
print('File Name:', f.split("\\")[-1])
print('Content:')
df.pop('Unnamed: 0')
display(df)
list_of_dfs.append(df)
access the individual dataframes with list_of_dfs[0]
, list_of_dfs[1]
,...
Reading multiple files into separate data frames in PYTHON
I believe you need create dictionary of DataFrame
with keys
by filenames:
d = {}
for filename in glob.glob('*.csv'):
if "test" in filename:
d[filename[:-4]] = pd.read_csv(filename)
What is same as:
d = {f[:-4]: pd.read_csv(f) for f in glob.glob('*.csv') if "test" in f}
If want only name of file is possible use:
d = {os.path.basename(f).split('.')[0]:pd.read_csv(f) for f in glob.glob('*.csv') if "test" in f}
Reading multiple txt files into data frames and merging them into one
The following should work well. However, without sample data or a more clear description of what you want it's hard to know for certain if this if what you are looking to accomplish.
#set working directory
setwd("C:/Users/path/to/my/files")
#read in all .txt files but skip the first 8 rows
Data.in <- lapply(list.files(pattern = "\\.txt$"),read.csv,header=T,skip=8)
#combines all of the tables by column into one
Data.in <- do.call(rbind,Data.in)
Retrieving data from multiple files into multiple dataframes
You are really close, need join all data by concat
from generator:
contentdataframes = (pd.read_excel(f) for f in listoffiles)
df = pd.concat(contentdataframes, ignore_index=True)
If need list of DataFrames
:
contentdataframes = [pd.read_excel(f) for f in listoffiles]
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