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Hatshy [7]
3 years ago
10

A student who used a regression model that included indicator variables was upset when receiving only the following output on th

e multiple regression printout: X TRANSPOSE X SINGULAR. What is a likely source of the difficulty
Computers and Technology
1 answer:
jeka57 [31]3 years ago
4 0

Answer:

This is a multicolinearity problem and the student should determine the variable(s) that cause(s) the problem and remove it.

Explanation:

This information means that there exists a linear combination between the independent variables. The problem might have developed due to multicolinearity producing almost perfectly linearly dependent columns.

This could also be as a results of single matrix created when the student use an incorrect indicator variables and included an additional indicator column which created linearly dependent columns.

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Implement a function called merge that does the following in C#:
levacccp [35]

Answer:

Check the explanation

Explanation:

using System;

using System.Collections.Generic;

using System.Linq;

public class Problem2

{

public static IEnumerable<int> merge (IEnumerable<int> input1, IEnumerable<int> input2, IEnumerable<int> input3)

{

IList<int> list = new List<int>();

foreach (int i in input1)

{

if(i%3==0 && ! list.Contains(i))

list.Add(i);

}

foreach (int i in input2)

{

if(i%3==0 && ! list.Contains(i))

list.Add(i);

}

foreach (int i in input3)

{

if(i%3==0 && ! list.Contains(i))

list.Add(i);

}

return list;

}

}

public class Problem2Demo{

static void Main (string[] args)

{

Random rnd = new Random ();

var list1 = Enumerable.Range (1, 10).Select (i => (rnd.Next () % 15) + 1);

var list2 = Enumerable.Range (1, 10).Select (i => (rnd.Next () % 15) + 1);

var list3 = Enumerable.Range (1, 10).Select (i => (rnd.Next () % 15) + 1);

var answer = Problem2.merge (list1, list2, list3);

foreach (int i in answer)

{

Console.WriteLine (i);

}

}

Kindly check the attached output image below.

8 0
3 years ago
Of what is famous Ted Nelson?​
dsp73

Answer:

Nelson proposed a system where copying and linking any text excerpt, image or form was possible.

Explanation:

Ted Nelson is one of the theoretical pioneers of the world wide web who is best known for inventing the concept of hypertext and hypermedia in the 1960s. As one of the early theorists on how a networked world would work.

How I know:

I goggle it.

8 0
2 years ago
Convert 30 to hexadecimal ​
Delvig [45]

Answer:

1E

Explanation:

Here is a table to help you. Similar to a multipication table, just follow either the number 3 down to A (aka 10) or 6 x 5 and you will find your answer of

1E = 30

6 0
3 years ago
Do you play Rocket League
lakkis [162]
Yessirrr like 3 times a week
6 0
2 years ago
Read 2 more answers
How do you fix peer answer bad gateway 502. Please help
kondaur [170]

Answer:

Reload the page.

Look for server connectivity issues.

Check for any DNS changes.

Sift through your logs.

Fix faulty firewall configurations.

Comb through your website's code to find bugs.

Contact your host.

Explanation:

7 0
3 years ago
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