data tag

36 questions


1 answers
358 views
0
View attribute in CoreData

With CoreDataI'd like to display adata in the list with Entity as AData and attribute as adata, but I can't find items.adata because the initial value is empty.says items.adata?But it will come out.Wh...

1 years ago

1 answers
328 views
0
I'm trying to match two different data with Python, but I don't know which method to use.

It's the same machine, but there's two data collected from different sensors (I'll call it A, B). Both data were collected in seconds.There is one column that collected the same information from the A...

1 years ago

1 answers
290 views
0
overfitting 및 예측 data augmentation

Hi, everyone We're going to use random forest to create a prediction forest Overfitting occurs. We adjusted various parameters due to overfitting, but there is no big change. When I looked up the reas...

1 years ago

1 answers
130 views
0
Unrecognized selector sent to instance when calling NSManagedObject subclass self-made method

Xcode Version 8.1(8B62) DeploymentTarget iOS 8.4We are creating a process to add data to Core Data.The Xcode feature automatically generated subclasses and added self-made methods.//Media+CoreDataClas...

2 years ago

2 answers
102 views
0
Please tell me about generating fetch conditions for Float values.

How do you generate fetch conditions for Float values?The condition setting for the Ingteger value yielded the expected result, but the condition setting for the Float value did not yield the expected...

2 years ago

1 answers
119 views
0
Swift4 Xcode 10.1beta3 NSFetchedResultsController does not recognize UITableView in the middle of the layout

I want to manage TableView data sources in the middle of the layout in the UIViewController with the FetchedResultsController, but it does not recognize TableView (see error message below).2018-10-25 ...

2 years ago

1 answers
121 views
0
When I built the application that was using CoreData on Swift3 with Swift4, Check dependencies came out.

When I built the application that used CoreData in swift3 with swift4, the following check dependencies came outThe use of Swift3 @objc reference in Swift4 mode is decremented. Please address decremen...

2 years ago

1 answers
102 views
0
Please tell me how to search for dates on CoreData's NSPredicate.

For example, if you create an entity called Data in CoreData, you can use Suppose you create Type:Date Attribute, day in it.And when I tried to pull the day for a particular date (I will ignore the ti...

2 years ago

1 answers
106 views
0
I want to do sectioning when displaying table views based on NSSet.

This is my first time to ask a question.It may be difficult to read, but please forgive me.CoreData is trying to create a two-tier table view.The data models are as follows:·Main class Attribute Name,...


1 answers
108 views
0
NSPredicate with CoreData, which can be retrieved with CONTAINS, but cannot be retrieved in any other way.

I saved CoreData under the entity name Story.The contents are only attributes, and This is the configuration.Use NSPredicate CONTAINS to do thisNSFetchRequest* request = [NSFetchRequest fetchRequestWi...

2 years ago
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