Question

Create your own K-nearest neighbors algorithm in R studio/ R such that it can be used with any dataset. Provide necessary comment for the Code.

Answer #1

The knn() function identifies the K nearest neighbors using euclidean distance measure. In R software,for knn() function we need to install a package 'class'.

You can use this code for any data set and find class for new values.

k-nearest neighbors and regression trees are methods
that can be used to predict numeric outcomes. Both tend to
outperform linear regression for very large data sets. Explain one
specific advantage that these methods have over linear
regression.

The following question can be answered in R code (using R-Studio
or a program of your choice).
Load the “star” data from the “faraway” package, and model
“temp” using “light”.
One may also suspect that the residuals (use all the data)
follow a t distribution instead of normal. Using the same logic
that we produced the QQ plot for comparing to the normal
distribution, produce a QQ plot for comparing to a t distribution.
You need to decide the degrees...

R work (must be done in R)
Copy and paste your R code and output into a word document,
along with your written answers to the questions.
Follow these instructions to import the necessary dataset:
Before opening the dataset needed for this problem, you’ll
need to call the “car” package. Run the following line of code:
> library(car)
Now you can import the “ States” dataset and use it to answer
the question below. Name the data frame...

Please use R-studio code to answer the
question!
Create a variable called 'pizza' whose value corresponds to the
price of pizza you’ve eaten in the last week. Or something equally
same. Now create another varible 'tax' whose value corresponds to
15% of the price of pizza. Now add these two values and store your
result as 'myCost'. I assume the utility you enjoyed was 50 utils.
So create a third variable 'myUtility' whose value is 50. Use
logical operations to...

This problem requires using R studio. This question is from
Verzani (Problem 2.15) Can some write the code for the answer to
the question below:
The negation operator ! is used with reverse Boolean values. For
example:
A <- c(True, False, True,
False)
!A
##[1] False True False False
One of De Morgan's laws in R code is ! (A & B) =
!A | !B .
Verify this with B <- c(False, True, False,
True) and A as above.

In Visual Studio, create a program that provides the following
items:
1
Textbox control
2
Picturebox control
3
int datatype
4
double datatype
5
strings
6
comment each line of code that you put into the form1.cs
7
label control
8
button control
The program can be about anything you want. It should be a
functional program.
Program Items worth (40pts (5pts per item) )
Creativity of your program worth (30pts)
Functionality worth (30pts)
Submit your (form cs file) and...

This problem requires using R studio. This question is from
Verzani (Problem 6.25) Can some write the code for the answer to
the question below:
A q-q plot is an excellent way to investigate whether a
distribution is approximately normal. For the symmetric
distributions Uniform (0,1), Normal (0,1), and t with 3 degrees of
freedom, take a random sample of size 100 and plot a
quantile-normal plot using qnorm. Compare the three and comment on
the curve of the plot...

C LANGUAGE
Create your own library named cis340yourlastname.
Create a header file named cis340yourlastname.
Write a program that receives two numbers from the user and uses
your written library to calculate the reminder after division, the
addition, and the subtraction of these two input numbers. (Hint
your library should include three functions. Your header file
should not contain the code for any of these functions, it should
contain only the instructions for how to use the library).

PLEASE USE MICROSOFT SQL SERVER MANAGEMENT STUDIO
18
The purpose of this task is to create a student table such that
it has 2 partitions. One that will include all student id's through
500 and a second one that will include all student id's above
500.
StudentID
int
StudentName
varchar(30)
*StudentID should be a a primary key.
**StudentName should be required.
Do you not use the master filegroup.
Each partition should be associated with a different physical
file. Use any...

Provide a specific example of a large dataset, and how it can be
used in your current or future career. What are some of the
challenges of working with large datasets, and how you think you
can overcome these challenges?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 6 minutes ago

asked 11 minutes ago

asked 27 minutes ago

asked 37 minutes ago

asked 42 minutes ago

asked 49 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago