You are given an array of arrays a. Your task is to group the arrays a[i] by their mean values, so that arrays with equal mean values are in the same group, and arrays with different mean values are in different groups. Each group should contain a set of indices (i, j, etc), such that the corresponding arrays (a[i], a[j], etc) all have the same mean. Return the set of groups as an array of arrays, where the indices within each group are sorted in ascending order, and the groups are sorted in ascending order of their minimum element.

Example

For
a = [[3, 3, 4, 2],
[4, 4],
[4, 0, 3, 3],
[2, 3],
[3, 3, 3]]
the output should be

meanGroups(a) = [[0, 4],

[1],

[2, 3]]

mean(a[0]) = (3 + 3 + 4 + 2) / 4 = 3;
mean(a[1]) = (4 + 4) / 2 = 4;
mean(a[2]) = (4 + 0 + 3 + 3) / 4 = 2.5;
mean(a[3]) = (2 + 3) / 2 = 2.5;
mean(a[4]) = (3 + 3 + 3) / 3 = 3.
There are three groups of means: those with mean 2.5, 3, and 4. And they form the following groups:

Arrays with indices 0and 4 form a group with mean 3;
Array with index 1 forms a group with mean 4;
Arrays with indices 2and 3 form a group with mean 2.5.
Note that neither

meanGroups(a) = [[0, 4],

[2, 3],

[1]]

nor

meanGroups(a) = [[0, 4],

[1],

[3, 2]]

will be considered as a correct answer:

In the first case, the minimal element in the array at index 2 is 1, and it is less then the minimal element in the array at index 1, which is 2.
In the second case, the array at index 2 is not sorted in ascending order.
For
a = [[-5, 2, 3],
[0, 0],
[0],
[-100, 100]]
the output should be

meanGroups(a) = [[0, 1, 2, 3]]

The mean values of all of the arrays are 0, so all of them are in the same group.

Input/Output

Answers

Answer 1

Answer:

import numpy as np  

a = [[3, 3, 4, 2], [4, 4], [4, 0, 3, 3], [2, 3], [3, 3, 3]]

mean_holder = [np.array(i).mean() for i in a]

mean_groups= [[i for i,x in enumerate(mean_holder) if x==v] for v in mean_holder]

mean_g = []

for i in mean_groups:

   if i not in mean_g:

       mean_g.append(i)

print(mean_holder)

print(mean_g)

Explanation:

The python's Numpy package is used to convert the lists in the a-list into arrays and the means are taken and grouped by index


Related Questions

A Multi-Node computing platform utilized to share computing resources and characterized by centralized administration. This is a ..... environment

A.Multi-Programming
B.Peer-to-peer
C.Parllel.
D.Distributed
E.Cluster.​

Answers

Answer:

B

Explanation:

Multi-Node

When text is used as a Hyperlink, it is usually underlined and appears as a different color.

Question 3 options:
True
False

Answers

True it usually shows up with a blue underline

What is not a type of text format that will automatically be converted by Outlook into a hyperlink?
O email address
O web address
O UNC path
O All will be automatically converted.

Answers

Answer:

UNC path seems to be the answer

Answer:

UNC path

Explanation:

please answer soon
Anonymity allows you to have freedom of
the internet
downloads
expression
information

Answers

Answer: Internet, I’m pretty sure about my answer.

Explanation: Anonymous communications have an important place in our political and social discourse.

Answer:

[ Freedom of expression ]

Why?

it was either that or internet but internet just means being able to use it rather than do whatever i guess

You are the administrative assistant for the Psychology Department in your college, and they have assigned you to set up a small server to provide basic file services to faculty, staff, and students in that department, which currently has 122 users. For example, faculty will use the server to post and receive class assignments. Which edition of Windows Server 2016 is most appropriate for this situation?

Answers

Answer: Standard edition

Explanation:

Based on the information given in the question, the edition of Windows Server 2016 that is most appropriate for this situation will be the standard edition.

Since it's going to be fora small server to provide basic file services to faculty, staff, and students in that department, which currently has 122 users, the standard edition is appropriate.

Standard edition is ideal in a scenario whereby there's a non-virtualized environments or low density with regards to the population.

Write Python code to convert miles to kilometers. This does not need to be written in a Python function, but it should use the input()function. Running your code should produce a statement asking for the user to enter a number (in miles). Then it should print out a sentence of what that number is in kilometers. Use the conversion rate of 1 mile

Answers

Answer:

It can be so frustrating that the entire planet can't just agree on one system of measurement, whether it relates to measuring distances, weights, temperatures, etc (for the record...same goes for which side of the road everyone drives on). If every country used the same units of measurement, then these formulas would be useless and obsolete, but until then, it might be a good idea to understand how to convert miles to kilometers, and vice versa. If you're a Python developer, then knowing how to write the formulas in Python might be especially useful. Keep reading to see just how it's done.

Converting miles to km isn't especially difficult. To do a rough estimate of the conversion in your head, all you really need to remember is that a mile equals about 1.6 kilometers (or that a kilometer is approximately 2/3 of a mile). When trying to find the correct conversion using a formula, we must use the more precise conversion factor, which is equal to 0.62137119.

To convert miles to kilometers, the formula is very straightforward. All you need to do is divide the number of miles by the conversion factor. To see how it would look written out in Python, check out the example below:

Explanation:

Answer:

All you need to convert the Python code is TWO variables, a Outcome variable and a income variable.

Explanation:

i Hope this helps u

What is Mobile Edge Computing? Explain in tagalog.​

Answers

Answer:

English: Multi-access edge computing, formerly mobile edge computing, is an ETSI-defined network architecture concept that enables cloud computing capabilities and an IT service environment at the edge of the cellular network and, more in general at the edge of any network.

Very very rough Tagalog: Ang multi-access edge computing, dating mobile edge computing, ay isang konsepto ng network architecture na tinukoy ng ETSI na nagbibigay-daan sa mga kakayahan sa cloud computing at isang IT service environment sa gilid ng cellular network at, higit sa pangkalahatan sa gilid ng anumang network.

Explanation:

Assume in the for loop header, the range function has the three arguments: range (1, 10, 3), if you were to print out the value of the variable
in the for loop header, what will be printed out? List the values and separate them with a comma.

Answers

Answer:

1, 4, 7

Explanation:

The instruction in the question can be represented as:

for i in range(1,10,3):

   print i

What the above code does is that:

It starts printing the value of i from 1

Increment by 3

Then stop printing at 9 (i.e.. 10 - 1)

So: The sequence is as follows

Print 1

Add 3, to give 4

Print 4

Add 3, to give 7

Print 7

Add 3, to give 10 (10 > 10 - 1).

So, it stops execution.

How have newspapers and magazines adapted to digital technology? Give at least two examples.

Answers

Firstly, the newspaper is a reliable source of information as the news, critics, pictures have gone through professional journalists and editors that does not publish any unreliable information. 

Secondly,  in this digital age there are still old folks that are not techno-savvy and poor people that cannot afford to be connected to the society.

Hence, at this point of time, the newspaper still comes to play as it is the most affordable and alternative method from online news while still providing information for the old and poor. Thus, newspapers still have a role in my society in this digital age. 

Answer:

They have adapted to digital technology by creating apps for their readers to access their content on their phones or computers.

Explanation:

I Hope this helps.

the increase and decrease font button and the change text colour button (as shown in the picture )are include in which group ?​

Answers

Answer:

These are the part of FONT Group on MS word / Excel application where you can increase and decrease font, change text color, highlight text, select font from the list and many other functions.

You can also perform advance functions related to Font by clicking on a small arrow like icon in bottom right corner.

The following segment of code is meant to remove the even numbers from an ArrayList list and print the results:

int counter = 0;
while(counter < list.size())
{
if(list.get(counter) %2 == 0)
{
list.remove(counter);
}
counter++;
}
System.out.println(list.toString());
The method as written, however, is incorrect. Which ArrayList(s) list would prove that this method was written incorrectly?

I.
[1, 2, 3, 4, 5]
II.
[2, 4, 5, 6, 7]
III.
[2, 4, 6, 8, 10]
IV.
[2, 5, 6, 7, 8]
III only


II and IV


II only


I and IV


II and III

Answers

Answer:

II and III

Explanation:

I took the quiz and got this wrong, but it gives you the answer afterwards, just trying to help everyone else out.

Answer:

II and III

Explanation:

if the Titanic sank today , in what format would people receive or read the news? Indicate your favorable from of media format you can think that is existing during this time and discuss why you chose this media format.​

Answers

Answer:

It would hit MSM the soonest such as CNN, Fox , and all other news sources. The second that tge news got out, these news sources would dig in and find all information available and do a report on it

Order the steps to autofilter data

Answers

Answer:

Select the data you want to filter.

Click Data > Filter.

Click the arrow. ...

Choose specific values: Uncheck (Select All) to clear all of the check boxes, and then check the boxes for the specific value(s) you want to see.

Explanation:

1. Select the data you want to filter.

2. Click Data > Filter.

3. Click the arrow. ...

4. Choose specific values: Uncheck (Select All) to clear all of the check boxes, and then check the boxes for the specific value(s) you want to see.

Answer:

Select any cell in the data range > Click the data tab > Go to the sort & filter group > Click filter and select proper controls

Explanation:

i got it right lol :)

The computer scientists Richard Conway and David Gries once wrote: The absence of error messages during translation of a computer program is only a necessary and not a sufficient condition for reasonable [program] correctness. Rewrite this statement without using the words necessary or sufficient.

Answers

Answer:

A computer program is not reasonably correct if it has no error messages during translation.

 

Explanation:

First, we need to understand what the statement means, and we also need to identify the keywords.

The statement means that, when a program does not show up error during translation; this does not mean that the program is correct

Having said that:

We can replace some keywords as follows:

absence of error messages := no error messages

A resistor is found to have 3 A going through it with a voltage of 150 V. What is the resistance of the resistor?
10 points

Answers

Answer:

50 ohms

Explanation:

voltage = current * resistance, this is rearranged as

resistance = voltage / current, so if you plug in the numbers, you'll get

150/3,

resistance = 50 omhs

With contention:_______.
a. computers wait until the circuit is free before they send data
b. the server or front end processor works consecutively through a list of clients to determine who should have access to the media
c. the front end processor must wait for a response from the polled client or terminal
d. one computer starts the poll and passes it to the next computer on the multipoint circuit
e. there is never a chance for collision, or two computers trying to send data at the same time

Answers

Answer:

a. computers wait until the circuit is free before they send data.

Explanation:

In Computer science, controlled access (X-ON/X-OFF) is typically the opposite of contention.

Controlled access is mainly used by computer networks that are being managed by a host mainframe computer system. X-ON is ready to receive while X-OFF isn't ready to receive.

With contention, computers wait until the circuit is free before they send data. It generally prevents collision between computer systems.

80. A .......... is used to read or write data.
A. CD B. VDU C. ROM D. RAM​

Answers

Answer:

Depending on exactly what they mean by read and write, both A and D are valid.  In fact, if you read that as "read or write" as being a logical OR and not the logical AND that the sentence probably intends, then all four answers could be correct.

What they probably mean to say though is "..... is used as a read/write storage medium", in which case A is the correct answer.

A.  Data can be written to or read from a CD.  This is probably the "right" answer

B. A human can "read" data from a Visual Display Unit, and the computer "write" it.  That of course is not the intended meaning though.

C.  Data can be read from Read Only Memory, but not written to.

D. Data can be both read and written to Random Access Memory, but not retained after the computer is powered off.

Write a program that implements a class called Dog that contains instance data that represent the dog's name and age. • define the Dog constructor to accept and initialize instance data. • create a method to compute and return the age of the dog in "person-years" (note: dog age in person-years is seven times a dog's age). • Include a toString method that returns a one-line description of the dog • Write a driver class called Kennel, whose main method instantiated and updates several Dog objects

Answers

Answer:

Dog.java:

Dog{

   //Declare instance variables

   private String name;

   private int age;

   

   //Create the constructor with two parameters, and initialize the instance variables

   public Dog(String name, int age){

       this.name = name;

       this.age = age;

   }

   

   //get methods

   public String getName(){

       return name;

   }

   

   public int getAge(){

       return age;

   }

   

   //set methods

   public void setName(String name){

       this.name = name;

   }

   

   public void setAge(int age){

       this.age = age;

   }

   

   //calculateAgeInPersonYears() method to calculate the age in person years by multiplying the age by 7

   public int calculateAgeInPersonYears(){

       return 7 * getAge();

   }

   

   //toString method to return the description of the dog

   public String toString(){

       return "Name: " + getName() + ", Age: " + getAge() + ", Age in Person Years: " + calculateAgeInPersonYears();

   }

}

Kennel.java:

public class Kennel

{

public static void main(String[] args) {

          //Create two dog objects using the constructor

          Dog dog1 = new Dog("Dog1", 2);

          Dog dog2 = new Dog("Dog2", 5);

          //Print their information using the toString method

          System.out.println(dog1.toString());

          System.out.println(dog2.toString());

          //Update the first dog's name using setName method

          dog1.setName("Doggy");

          System.out.println(dog1.toString());

          //Update the second dog's age using setAge method

          dog2.setAge(1);

          System.out.println(dog2.toString());

}

}

Explanation:

*The code is in Java.

You may see the explanations as comments in the code

how to learn python ?

Answers

Answer:

See below.

Explanation:

To learn python programming language, first, you have to know the basic. Surely, you may recognize this function namely print()

print(“Hello, World!”) — output as Hello, World!

First, start with familiarizing yourself with basic function such as print. Then step up with arithmetic and declare or assign variable then list.

Here are example of functions:

1.) print(argument) — If argument is a string (word-typed), make sure to use “” or ‘’ or else it’ll output an error and say the argument is not defined.

print(“Hi, Brainly”) will output Hi, Brainly

print(2+3) will output 5

Numerical data or numbers do not necessarily require “ “ or ‘ ‘

print(3+3) will output 6 but print(“3+3”) will output 3+3 which is now a string.

2.) type(argument) - this tells you which data/argument it is. There are

< class ‘str’ > which is string, meaning it contains “ “ or ‘ ‘< class ‘int’ > which is integer< class ‘float’ > which is decimal (20.0 is also considered as float, basically anything that contains decimal is all float type)< class ‘list’ > which is a list. List is something that contains elements within square brackets [ ]

etc.

Make sure you also do print(type(argument)) as well so it will print out the output.

3.) Arithmetic

+ is addition

Ex. print(1+3) will output 4

   2. - is subtraction

Ex. print(5-4) will output 1

   3. * is multiply

Ex. print(4*5) will output 20

   4. ** is exponent

Ex. print(5**2) will output 25

   5. / is division

Ex. print(6/3) will output 2 — sometimes will output the float type 2.0

   6. % is modulo or remainder

Ex. print(7%2) will output 1

4.) Variables

To assign a variable, use =

An example is:

x = 2

y = 5

print(x+y) will output 7

print(type(x)) will output the < class ‘int’ >

These are examples of what you’ll learn in basic of python - remember, programming depends on experience and always focus on it. Keep practicing and searching will improve your skill at python.

User ideas for ro blox? I prefer no numbers or underscores.

Answers

do what the other person said

BINARY DATA:

00000000 00000000 00001100 00000111 10101100 00001010 01111000 00101011 11001011 10011101 00111001 11110011
00001000 00000000 01000101 00000000 00000000 00101000 00000010 10001110 01000000 00000000 10000000 00000110
00000000 00000000 00001010 01111011 00001010 00100001 01101011 00010100 11011001 10101011 00111000 00010111
00000000 01010000 01001100 00100001 00011000 00001001 10011101 01100010 10100011 10001011 01010000 00010000
01000000 10110000 01011001 01110110 00000000 00000000

Required:
a. How do you know this is an IP packet?
b. What is the embedded protocol?
c. What is the size of the embedded protocol payload?

Answers

Answer:

A.

Explanation:

Answer:

a

Explanation:

How have newspapers and magazines adapted to digital technology?

Answers

Answer:

Most newspapers now have online editions. Subscription models have gone beyond print-only into digital-only and print-digital combinations -- and as print-only circulation is dropping, digital and combination circulation is on the rise.

Computers were originally invented to
Group of answer choices
A.to share information on the Internet.

B.make complex mathematical calculations possible and make tasks easier for humans.

C.to play video games.

Answers

Answer:

B

Explanation:

It's B because why would it me made to play video games

Answer:

B

Explanation:

A, the internet didnt exist yet, so it cant be this

C, video games would require computers, so its ruled out on a similar basis as the previous

Where can the Field Service Manual containing Critical Callout, Disassembly and Reassembly instructions be found?

Answers

Answer:

Somewhere

Explanation:

Use devices that comply with _____________ standards to reduce energy consumption.


Energy Star


Energy Plus


Power Pro


Data Center


Power Star

Answers

Answer:

energy star

Explanation:

I just got it correct

The correct option is A. Use devices that comply with Energy Star standards to reduce energy consumption.

How much energy does ENERGY STAR save?

Depending on the comparable model, Energy Star appliances can help you save anywhere between 10% and 50% of the energy needed. If you are replacing an older appliance, you can save even more. The Department of Energy and the Environmental Protection Agency jointly administers the Energy Star program.

Through the use of energy-efficient goods and practices, it seeks to assist consumers, businesses, and industry in making savings and safeguarding the environment. The Energy star badge identifies high-performing, economical houses, buildings, and products.

Thus, the Use of Energy Star-certified equipment to cut down on energy use; is option A.

Learn more about Energy Star here:

https://brainly.com/question/27093872

#SPJ2

What is a fundamental difference between the SAP platform and the AirBnB platform?

Answers

The fundamental difference between the SAP platform and the AirBnB platform is that;

SAP is an enterprise resource planning platform and AirBnb is a collaborative platform

SAP and AirBnB SAP ERP is defined as an enterprise resource planning software developed by the German company SAP SE. Thus, it is used to assist companies with the management of business areas involving finances, logistics and human resources.

Meanwhile AirBnB is collaborative platform that allows property owners to list their place as holiday accommodation in order to permit travellers to locate somewhere to stay when they are away from home and family.

Read more about management tools at; https://brainly.com/question/17493537

What Is the Purpose of a Web Browser? *

Answers

A web browser takes you anywhere on the internet. It retrieves information from other parts of the web and displays it on your desktop or mobile device. The information is transferred using the Hypertext Transfer Protocol, which defines how text, images and video are transmitted on the web.

Answer:

This is your answer. If I'm right so,

Please mark me as brainliest. thanks!!!

how can we achieve an effective communication with other people​

Answers

Just be yourself!
Explanation.......

Return a formatted string with numbers The function below takes three numerical inputs: num1, num2, and num3. Implement it to return a formatted string with an underscore between the first two numbers and space, exclamation point, and another space between the second and third number. For example, if the inputs are 1, 2, and 3, then the function should return the string '1_2 ! 3'.

Answers

Answer:

In Python:

def ret_formatted(num1,num2,num3):

   result = str(num1)+"_"+str(num2)+" ! "+str(num3)

   return result

Explanation:

This defines the function

def ret_formatted(num1,num2,num3):

This generates the output string

   result = str(num1)+"_"+str(num2)+" ! "+str(num3)

This returns the result string

   return result

Which option should Curt use to share his calendar with other users inside his organization?
O Email Calendar
O Share Calendar
O Publish Online
O Share Online

Answers

Answer:

Share calendar

Explanation:

Because you will be able to limit certain permissions to the organization rather than emailing it.

also, edge unit test 2022

Curt should use to share his calendar with other users inside his organization  "Share Calendar"

What is calendar ?

A calendar is a method of structuring and displaying time, typically for the purpose of planning and scheduling events or activities. It typically shows dates, days of the week, and yearly months and enables people to keep track of events like meetings, appointments, birthdays, and holidays. A desk calendar, a physical wall calendar, or an electronic calendar stored on a computer, smartphone, or other device are all examples of calendars

The correct option for Curt to share his calendar with other users inside his organization is "Share Calendar".

To know more about calendar check:

https://brainly.com/question/17524242

#SPJ6

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A can of orange juice is 12 ounces. How many grams is the can oforange juice? Need help pleaseee someone PLEASE PLEASE HELP ME PLEASE!! A rope is x metres long. Juan cuts off 20% of the rope to tie up a box. He cuts off another 75m for his friend. Write an expression to describe the length of the rope that Juan has left. What is Nick Carraway's goal? The length of the base of an isosceles triangle is x. The length of a leg is 2x - 3. The perimeter of the triangle is 34. Find x. An oblique candle with a volume of 270 cubic centimeters is 18 centimeters tall. The width of the triangular candle base is 5 centimeters, and the width of the slanted candle is 7 centimeters. An oblique triangular prism has a volume of 270 cubic centimeters. The vertical height is 18 centimeters. The width of the triangular bases is 6 centimeters, and the width of the slanted prism is 7 centimeters. What dimensions of the box are required to fit the candle? 5 cm by 6 cm by 18 cm 7 cm by 6 cm by 18 cm 5 cm by 3 cm by 18 cm 7 cm by 3 cm by 18 cm Help me please this is due at 11:30 For a specific cactus plant, cacti homologous for red flowers were crossbred with cacti homologous with white flowers. The next generation was 100% pink. Which genetic term best describes this result? Explain your reasoning. management strategies for drought and desertification 800 divided by 12. help me pls If you were to create an infographic about Colorado, what are three pieces of information that you would research and use? You do not need to provide the data itself, but explain what topics you would research. what is the coefficient in -x+9 Factor completely. 492 9 =? Who are the greek gods? Please help me on this question!!! Read this excerpt from What I Hope to Leave Behind.In all the ages there have been people whose hearts have been somehow so touched by the misery of human beings that they wanted to give their lives in some way to alleviate it. We have some examples of women like this today: Lillian Wald and Mary Simkhovitch in New York, Jane Addams in Chicago.Why does Eleanor Roosevelt refer to these women in her speech?They were women who became friends with Eleanor Roosevelt.They were three women who had pursued successful careers.They were women who agreed to help Eleanor Roosevelt educate the public.They were well-known examples of women who had worked to help others. A company packages their product in two sizes of cylinders. Each dimension of the larger finderis twice the size of the corresponding dimension of the smaller Cylinder202hBased on this information, which of the following statements is true?A. The volume of the larger cylinder is 2 times the volume of the smaller cylinder.B. The volume of the larger cylinder is 4 times the volume of the smaller cylinder.C. The volume of the larger cylinder is 8 times the volume of the smaller cylinder.D. The volume of the larger cylinder is 6 times the volume of the smaller cylinder. all 3 needed chapters of lore One card is randomly selected from a deck of cards. Find the odds:in favor of getting a spade. During the 1860s, the United States occupied the Midway Islands and acquired Alaska. Why did America expand into these new territories? How were the reasons for acquiring both territories similar?