Recent questions tagged Pandas

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pandas - How to perform time series analysis that contains multiple groups in Python using fbProphet or other models?

All, My dataset looks like following. I am trying to predict the 'amount' for next 6 months using either the fbProphet or ... 6 2017-07-01 B 5.6 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - Portfolio rebalancing with bandwidth method in python

We need to calculate a continuously rebalanced portfolio of 2 stocks. Lets call them A and B. They shall both ... to make this question clearer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - How to perform time series analysis that contains multiple groups in Python using fbProphet or other models?

All, My dataset looks like following. I am trying to predict the 'amount' for next 6 months using either the fbProphet or ... 6 2017-07-01 B 5.6 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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994 views

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pandas - How to assign count of unique values to the records in a data frame in python

I have a data frame like this: IP_address IP1 IP1 IP1 IP4 IP4 IP4 IP4 IP4 IP7 IP7 IP7 I would like to ... please direct me there. Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

pandas - Portfolio rebalancing with bandwidth method in python

We need to calculate a continuously rebalanced portfolio of 2 stocks. Lets call them A and B. They shall both ... to make this question clearer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

pandas - How to perform time series analysis that contains multiple groups in Python using fbProphet or other models?

All, My dataset looks like following. I am trying to predict the 'amount' for next 6 months using either the fbProphet or ... 6 2017-07-01 B 5.6 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

pandas - How to assign count of unique values to the records in a data frame in python

I have a data frame like this: IP_address IP1 IP1 IP1 IP4 IP4 IP4 IP4 IP4 IP7 IP7 IP7 I would like to ... please direct me there. Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

pandas - Portfolio rebalancing with bandwidth method in python

We need to calculate a continuously rebalanced portfolio of 2 stocks. Lets call them A and B. They shall both ... to make this question clearer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

pandas - How to perform time series analysis that contains multiple groups in Python using fbProphet or other models?

All, My dataset looks like following. I am trying to predict the 'amount' for next 6 months using either the fbProphet or ... 6 2017-07-01 B 5.6 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

1 answer

pandas - How to do Multi-Column from_tuples?

I get how to use pd.MultiIndex.from_tuples() in order to change something like Value (A,a) 1 (B,a) 2 (B ... for the DataFrame I wished to join. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - How to write data to Redshift that is a result of a dataframe created in Python?

I have a dataframe in Python. Can I write this data to Redshift as a new table? I have successfully created a ... to write a dataframe to it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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pandas or python equivalent of tidyr complete

I have data that looks like this: library("tidyverse") df <- tibble(user = c(1, 1, 2, 3, 3, 3), x ... / python that will yield the same result? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - Logical operation on two columns of a dataframe

In pandas, I'd like to create a computed column that's a boolean operation on two other columns. In pandas, ... . Is there a better way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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pandas - Python Reindex Producing Nan

Here is the code that I am working with: import pandas as pd test3 = pd.Series([1,2,3], index = ['a','b','c ... output would be: f 1 g 2 z 3 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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pandas - JOIN two dataframes on common column in python

I have a dataframe df: id name count 1 a 10 2 b 20 3 c 30 4 d 40 5 e 50 Here I have another dataframe ... 0 Should I use df.merge or pd.concat? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - Missing values in Time Series in python

I have a time series dataframe, the dataframe is quite big and contain some missing values in the 2 columns( ... and give a memory error See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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pandas - How do you Unit Test Python DataFrames

How do i unit test python dataframes? I have functions that have an input and output as dataframes. Almost ... unit tests for these functions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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pandas - When to apply(pd.to_numeric) and when to astype(np.float64) in python?

I have a pandas DataFrame object named xiv which has a column of int64 Volume measurements. In[]: xiv['Volume' ... to a float64 in place. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

pandas - python: using .iterrows() to create columns

I am trying to use a loop function to create a matrix of whether a product was seen in a particular week. ... products in week 3 &c.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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pandas - How to convert datatype:object to float64 in python?

I am going around in circles and tried so many different ways so I guess my core understanding is wrong. I ... object dtype: object SQL table: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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pandas - How to add title to seaborn boxplot

Seems pretty Googleable but haven't been able to find something online that works. I've tried both sns. ... m also working with matplotlib. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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pandas - How can I save table of dataframe in Python?

I have an issue about putting dataframe into to table and saving it as a png file. To do that, I wrote some ... I fix it? Here is my screenshot See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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pandas - Column contains column 3

I have a dataframe. I would like to test whether, (C), on each row, the number in column (B) is ... : cannot convert float NaN to integer See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

1 answer

pandas - how to convert all columns from object to float type

I trying to convert all columns with '$' amount from object to float type. With below code i couldnt remove the $ sign. ... x: x.lstrip('$'))] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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pandas - toPandas() error using pyspark: 'int' object is not iterable

I have a pyspark dataframe and I am trying to convert it to pandas using toPandas(), however I am running into ... 'int' object is not iterable See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

pandas - Python - excel export

I've got this code: import pandas as pd import requests from bs4 import BeautifulSoup res = requests.get("https ... ' Can anybody help me? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.9k views

1 answer

pandas - How to ignore NaN in rolling average calculation in Python

For a time series sales forecasting task I want to create a feature that represents the average sales over the ... data points in the window. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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pandas - How do I change rows and columns in a dask dataframe?

There are few issues I am having with Dask Dataframes. lets say I have a dataframe with 2 columns ['a','b' ... to change values in those rows. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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