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Python - Sum a column values before a certain date?

here is one line of code using Pandas to add up the values in the "score" column before the date 2020-02-19: total_score_before_corona = df[df['date'] < '2020-02-19']['score'].sum()

Tags: python, pandas

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Python - Convert undelimited bytes to pandas DataFrame?

This work fine for me: import numpy as np import pandas as pd data = b'\n\x00\x00\x00\x01\x00\x00\x00TEST\xa2~\x08A\x83\x11\xe3@\x05\x00\x00\x00\x03\x00\x00\x00TEST\x91\x9b\xd1?\x1c\xaa,@' dtype = n...

Tags: python, pandas, byte

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Use python to compare the values in two fields to find the same value?

If need compare values without order use sorted or frozenset in DataFrame.apply: df1['OUTPUT'] = (df1[['A', 'B']].apply(sorted, axis=1).duplicated(keep=False) .map({Tru...

Tags: python, pandas

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slicing pandas columns individually between first and last valid index?

Assuming such an input, in which you want to remove "C": A B C 0 NaN NaN NaN 1 1.0 1.0 1.0 2 2.0 2.0 NaN 3 3.0 3.0 3.0 4 NaN 4.0 NaN You can remove the columns with inner Na...

Tags: pandas, dataframe, slice

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Python - Display/print column as hex in pandas?

You can try to use pandas.io.formats.style.Styler: style = df.style.format({"colB": "0x{:02X}"}, precision=2) print(style.to_string(delimiter="\t")) Prints: colA colB colC colD 0...

Tags: python, pandas

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Python - Pandas remove rows with only one type of value, repeated or not?

You could convert to string and check if each cell contains a character other than 1 (or space/comma), if at least one True, keep the row: out = df[df.apply(lambda s: s.astype(str).str.contains('[^1 ,...

Tags: python, pandas

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Python - Pandas select rows with values are present for all elements in array?

Use a set, aggregate with issuperset: Type = {3,4,5} df['Date'] = pd.to_datetime(df['Date']) keep = df.groupby('Date')['Type'].agg(Type.issubset) out = df[df['Date'].isin(keep.index[keep])] Varian...

Tags: python, pandas

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Python - How do I display row names instead of index numbers while doing df.compare()?

All you need to do here is set the index to the column(s) you want to show row index labels for in your output. import pandas as pd # 1.5.3 df1 = pd.DataFrame({ 'name': ['Alice', 'Bob', 'Char...

Tags: python, pandas, dataframe

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Python - Finding if a specific value is in a given column of a dataframe?

You can use any(): list1 = [2, 3, 3] list2 = [3, 2, 3] print(any(l == list1 for l in pos["id"])) print(any(l == list2 for l in pos["id"])) Prints: True False

Tags: python, pandas

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Python - read_html without Beautifulsoup?

Try: import pandas as pd data = pd.DataFrame( pd.read_html( "https://www.geostat.ge/ka/modules/categories/26/samomkhmareblo-fasebis-indeksi-inflatsia", encoding="utf-8", )[0]...

Tags: python, pandas

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