merging the columns in excel file and converting to time format using pandas

Question

I want to convert the given excel data to a single time data using pandas in python .how can i do that . the format is as follows without header. I also want convert the 12.5 to 12.30 setup

enter image description here

the format should be like this

25 11 2020 12.5 ————-25-11-2020:12:30:00

Asked By: Adithiy R Nair

||

Source

Answer 1

import pandas as pd
from datetime import timedelta

def process_row(row):
    date = map(str,map(int,row[:3]))
    date = '-'.join(date)
    date = pd.to_datetime(date,format='%d-%m-%Y')+timedelta(hours=row[3])
    return date

a=[[25,11,2020,12.5],[25,11,2020,13.5],[25,11,2020,14]]
a = pd.DataFrame(a)
print(a)

Output:

    0   1   2       3
0   25  11  2020    12.5
1   25  11  2020    13.5
2   25  11  2020    14.0

a['date'] = a.apply(process_row,axis=1)
print(a)

Output:

    0   1   2       3       date
0   25  11  2020    12.5    2020-11-25 12:30:00
1   25  11  2020    13.5    2020-11-25 13:30:00
2   25  11  2020    14.0    2020-11-25 14:00:00

Answered By: Mazhar

Answer 2

I hope, it works for you. I create an custom function and use a datetime library

import pandas as pd
import datetime
df = pd.read_excel('./merging_excel_datetime.xlsx')
def createDate(x):
    return datetime.datetime(year=int(x.Year),day=int(x.Day),month=int(x.Month)) + datetime.timedelta(hours=x.Time)
df['Datetime'] = df.apply(lambda x: createDate(x), axis=1)
df

Output:

Answered By: Muhammad Ali

Answer 3

You need columns names Day, Month, Year and Hour for pass to to_datetime:

L = [[25,11,2020,12.5],
     [25,11,2020,13.5],
     [25,11,2020,14]]
df = pd.DataFrame(L, columns=['Day','Month','Year','Time'])

df['Date']=pd.to_datetime(df[['Day','Month','Year','Time']].rename(columns={'Time':'Hour'}))
print (df)
   Day  Month  Year  Time                Date
0   25     11  2020  12.5 2020-11-25 12:30:00
1   25     11  2020  13.5 2020-11-25 13:30:00
2   25     11  2020  14.0 2020-11-25 14:00:00

Answered By: jezrael

merging the columns in excel file and converting to time format using pandas

Question:

Answers: