data tag

36 questions


1 answers
120 views
0
I have a question about deleting columns after grouping Python Pandas data.

%matplotlib inlineimport numpy as npimport pandas as pdimport matplotlib as mplimport matplotlib.pyplot as pltimport osdata_filename = 'Popular_Baby_Names'data = pd.read_csv(C:/Anaconda3/DataSet/Popul...

2 years ago

1 answers
73 views
0
I'm trying to measure data usage on Android, but... Rebooting will initialize the data.

We want to create a function that measures data usage as the title suggests When the device reboots, there is a problem that starts from zero again.Android 6.0 and later shows how to measure data usag...

2 years ago

1 answers
113 views
0
[Android] I want to know how to transfer data between apps -> Web -> apps.

I've solved how to call an app on the web, but I'm not sure how to get the data from the delivery together.I can't find it even if I search for it. Is there a way? Please leave comments

2 years ago

1 answers
126 views
0
When storing values using JPA, how to assign a key value to a class field mapped to @AnyToOne (see Foreign Key)

EntityTo establish a relationship inside, we mapped it using the @AnyToOne annotation. For example:@Entitypublic class Book { @Id @GeneratedValue private long id; @Column private String name; @ManyToO...


2 answers
127 views
0
Is it possible to combine big data?

python 3.7 version anaconda pycharmThere are 1000000 columns in our csv fileThe content is roughly like this. Is it possible to add up the number of the same ID?Answer I want to change: I'd like to ma...

2 years ago

1 answers
108 views
0
How to convert csv file data using Python

In the csv file, the values of the 'Date' column are expressed as 'dd-Jul-yy', but I want to change them all to 'yyy-mm-dd' How do I do this? Python masters, help me

2 years ago

1 answers
92 views
0
Is it possible to reload only the data added in ios collectionView? Like notifyItemRangeInserted on Android?

Add data from the list and self.CollectionView.reloadData()will refresh the screen.After scrolling, add data and call self.CollectionView.reloadData()I forgot about the previously drawn screen, and I ...

2 years ago

1 answers
114 views
0
How does Melon manage its ever-increasing music data?

New sound sources that come up every day.The data will be stored and managed on the Melon serverAfter I learned MySQL recently, I thought,Even if you take out some of the songs that are sometimes lost...

2 years ago

1 answers
100 views
0
To output db data over a Java general array

I want to print it out through a normal array, not an array list.I just don't know how.Please give me a hint.ㅜ

2 years ago

1 answers
115 views
0
(Python) Creating a list of labeled text file data

Text file content is 1 0.552344 0.384028 0.159375 0.1958331 0.780078 0.595833 0.236719 0.133333It's like this After executing Python code [1 0.552344 0.384028 0.159375 0.195833] , [1 0.780078 0.59583...

2 years ago
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