Statistics: why use the regression line instead of the best fit line?

I was researching on the best fit line and I found this article that talked about the regression line. At first, everything seemed similar to the best fit line, but then I came across this:

enter the description of the image here

And I can't understand why go through this when you can simply use:
y = mx + b. Don't they give the same result?

wpf – Expander within list view, size does not fit

To illustrate my problem, I made a small example, I have Expand within ListView, but see what happens:

enter the description of the image here

Since the expander's content is wider than the screen, I see the expand button only in full screen mode.

my code:


How to fix?

How did technicians individually fit each 35mm Pentax / Konica SLR lens mount?

I just received a Konica Autoreflex T and discovered that the lens mount fits individually by hand.

How did the technicians determine if the lens mount is correctly parallel to the focal plane?

dnd 5e – When playing on a grid, how many medium creatures fit within the barrier area of ​​a Protection Scroll during combat?

The description of the protection roll (DMG, p. 199) says:

The use of an action to read the parchment encloses you in an invisible barrier that extends from you to form a cylinder 5 feet in radius and 10 feet high. For 5 minutes, this barrier prevents creatures of the specified type from entering or affecting anything inside the cylinder.

The cylinder moves with you and remains centered on you. However, if you move in such a way that a creature of the specified type would be inside the cylinder, the effect ends.

A creature can try to overcome the barrier by using an action to do a DC 15 Charisma test. In a success, the creature is no longer affected by the barrier.

As I understand it, most spell effects focus on a grid intersection (if you are using a grid, which I am) and calculate their areas that way. However, this element centers its 5 foot radius around the creature that uses the scroll. Then, in a grid, this cylinder must be centered in the middle of a space and, therefore, partially cover the other spaces.

Is this correct? If so, can other creatures (say, the other members of the group) fit into the area of ​​effect and also be safe from the creatures to which the displacement is directed?

It only partially covers its space, so a creature may or may not be able to affect them, which seems more ambiguous than it should.

python: how to fit the appropriate arguments in my export_graphviz

columns = (& # 39; carat & # 39 ;, & # 39; cut & # 39 ;, & # 39; price & # 39;)

features = ('carat,'cut')
target = 'price'
model = KneighborsRegressor(n_neighbors=2),train(target))

!pip install graphviz
!apt-get install graphviz
import graphviz
from sklearn.tree import_graphviz
dot_data = export_graphvi(model, out_file=None, feature_names = features, filled = True, rotate = True)

The error is that this instance of KNeighborsRegressor is not installed yet. Call & # 39; fit & # 39; with the appropriate arguments before using this method. What change to make export_graphvi run?

Does the modification of the regional time zone settings modify the "Modified" and "Created" fields in each list to fit that new time zone?

Short answer
If you only ask about the Created and Modified fields, do not worry about them. You will not need to go back into anything.

More information
SharePoint does not store the date and time in PST or EST. Regardless of where you are in the world or what Time Zone you have used, all dates are saved as UTC. UTC is always the same, no matter where you are on the Planet.

When you retrieve date and time values, SharePoint automatically converts UTC to its local time on the fly.

If you are using Custom Fields – It could have some different logic.

python 3.x – I have dictionaries in one of the columns and I need to fit this into a Logistic Regression model

This is one of the columns of my training data. The training data has 3 more columns. But I only show one here because this column is taking up too much space.

the word count
1 {& # 39; it & # 39 ;: 2, & # 39 ;: 1, & # 39; early & # 39 ;: 1, & # 39 ;: 3, & # 39; wa ...
2 {& # 39; Very & # 39 ;: 1, & # 39; smooth & # 39 ;: 1, & # 39 ;: 2, & # 39; comfortable & # 39; ...
3 {& # 39; This & # 39 ;: 1, & # 39 ;: 4, & # 39 ;: 2, & # 39; product & # 39 ;: 2, & # 39; we ...
4 {& # 39; All & # 39 ;: 1, & # 39 ;: 1, & # 39 ;: 1, & # 39; kids & # 39 ;: 2, & # 39; have & # 39; ...
5 {& # 39; When & # 39 ;: 1, & # 39 ;: 5, & # 39; Binky & # 39 ;: 3, & # 39; Hada & # 39 ;: 3, ...  

Now I am trying to adjust this data frame and the following error message:

from sklearn.linear_model import LogisticRegression
model = LogisticRegression (). fit (X_train, y_train)

The TypeError: float () argument must be a string or a number, not & dict & # 39;

How to solve this? Can someone please help?

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Unit: GameObject continues to fit the size of the camera in the game

I'm in the process of making my game object move when I drag it across the screen when I touch it. But my current problem is when I press play to test the game, the object of the game adjusts to the size of my camera on the Y. The default camera is set to a size of "5" but mine is set to "5.194104" . The GameObject will adjust to this position in the game. I can not understand why. Instead of the object remaining at -4.5f like the one I have in Vector3, it jumps to the size of the camera.

This is what I have:

`using System.Collections;

using System.Collections.Generic;

using UnityEngine;

Public class of PaddlePosition: MonoBehaviour

    // Start is called before the first frame update
void Home ()


// The update is called once per frame
Null update ()
OnFingerDrag ();

Private vacuum OnFingerDrag ()
Vector3 fingerPosition = new Vector3 (Input.mousePosition.x, -4.5f, 0.0f);
Vector3 objectPosition = Camera.main.ScreenToWorldPoint (fingerPosition);

transform.position = objectPosition;

} `

enter the description of the image here

Interpolation: How can I fit a function in a histogram?

SampleData = RandomVariate[RayleighDistribution[3], 5000];

This creates a histogram that (in my case) looks something like this:

enter the description of the image here

I want to adjust this histogram with a curve. The RandomVariate documentation shows something similar to what I had in mind:

enter the description of the image here

(However, the blue line is not really a tight curve, the documentation is simply to trace the [known] analytical formula)

How can I adjust the histogram? The obvious way is to use Interpolation, but the naive attempt of Interpolation[Histogram[Histogram[Histograma[Histogram[SampleData]] does not work Mathematica complains that the histogram is not a list of data and coordinates.