UNDERSTANDING THE NEED FOR SORTING DATA

Admin Posts : 8 Join date : 2018-08-08 Age : 25

• Sequential order – Placed in order based on the value of some field
• Alphabetical or numerical – Ascending order (arranging records from A to Z or lowest to highest) – Descending order (arranging records from Z to A or highest to lowest)
UNDERSTANDING THE NEED FOR SORTING DATA Colorful-hands-descending-graph-12078910

UNDERSTANDING THE NEED FOR SORTING DATA Colorful-hands-descending-graph-12078910

When computers sort data :
– Always use numeric values when making comparisons between values
– Letters are translated into numbers using coding schemes such as ASCII, Unicode, or EBCDIC • “B” is numerically one greater than “A” • “y” is numerically one less than “z”
– Whether “A” is represented by a number that is greater or smaller than the number representing “a” depends on your system
Professional programmers might never have to write a program that sorts data
– Organizations can purchase prewritten sorting programs
– Many popular language compilers come with built-in methods that can sort data for you • Beneficial to understand the sorting process

Guru Posts : 10 Join date : 2018-08-28

What is the meaning of ASCII?

Guru Posts : 10 Join date : 2018-08-28

Thank you for this discussion, its short but very meaningful. Nice one!

Guru Posts : 10 Join date : 2018-08-28

What is the difference between sequential and chronological order?

Posts : 5 Join date : 2018-08-28

ahnmaria wrote:: What is the difference between sequential and chronological order?

Sequential ; Something that is sequential follows a fixed order and thus forms a pattern. ex. The pages are numbered sequentially.
Chronological ; If things are described or shown in chronological order, they are described or shown in the order in which they happened. It relates to the timings of the happenings.

Posts : 5 Join date : 2018-08-28

ahnmaria wrote:: What is the meaning of ASCII?

ASCII (American Standard Code for Information Interchange) is the most common format for text files in computers and on the Internet. In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s). 128 possible characters are defined.

Guru Posts : 10 Join date : 2018-08-23

ASCII uses 7 bits to represent each character. For example, a capital "T" is represented by the number 84 and a lowercase "t" is represented by 116. Other keyboard keys are also mapped to standard ASCII values

Guru Posts : 10 Join date : 2018-08-23

Data Structure - Sorting Techniques. Sorting refers to arranging data in a particular format. Sorting algorithm specifies the way to arrange data in a particular order.

Guru Posts : 10 Join date : 2018-08-23

Anna wrote:: • Sequential order – Placed in order based on the value of some field
• Alphabetical or numerical – Ascending order (arranging records from A to Z or lowest to highest) – Descending order (arranging records from Z to A or highest to lowest)

When computers sort data :
– Always use numeric values when making comparisons between values
– Letters are translated into numbers using coding schemes such as ASCII, Unicode, or EBCDIC • “B” is numerically one greater than “A” • “y” is numerically one less than “z”
– Whether “A” is represented by a number that is greater or smaller than the number representing “a” depends on your system
Professional programmers might never have to write a program that sorts data
– Organizations can purchase prewritten sorting programs
– Many popular language compilers come with built-in methods that can sort data for you • Beneficial to understand the sorting process

.
Sequential programming involves a consecutive and ordered execution of processes one after another

Guru Posts : 10 Join date : 2018-10-15

ahnmaria wrote:: What is the meaning of ASCII?

Character data is represented in a computer by using standardized numeric codes which have been developed. The most widely accepted code is called the American Standard Code for Information Interchange ( ASCII). The ASCII code associates an integer value for each symbol in the character set, such as letters, digits, punctuation marks, special characters, and control characters.

Guru Posts : 10 Join date : 2018-10-15

ralfh wrote:

ahnmaria wrote:: What is the meaning of ASCII?

Character data is represented in a computer by using standardized numeric codes which have been developed. The most widely accepted code is called the American Standard Code for Information Interchange ( ASCII). The ASCII code associates an integer value for each symbol in the character set, such as letters, digits, punctuation marks, special characters, and control characters.

Some implementations use other codes for representing characters, but we will use ASCII since it is the most widely used. The ASCII characters and their decimal code values are shown in Table 4.2. Of course, the internal machine representation of characters is in equivalent binary form.

Guru Posts : 10 Join date : 2018-10-15

ahnmaria wrote:: What is the difference between sequential and chronological order?

actually there is no difference because it is same that sort data but maybe sequence is about having a descending or ascending of any type of character and chronological is about numbers only.

Guru Posts : 10 Join date : 2018-10-15

ralfh wrote:

ahnmaria wrote:: What is the meaning of ASCII?

Character data is represented in a computer by using standardized numeric codes which have been developed. The most widely accepted code is called the American Standard Code for Information Interchange ( ASCII). The ASCII code associates an integer value for each symbol in the character set, such as letters, digits, punctuation marks, special characters, and control characters.

The ASCII table has 128 characters, with values from 0 through 127. Thus, 7 bits are sufficient to represent a character in ASCII; however, most computers typically reserve 1 byte, (8 bits), for an ASCII character.

Guru Posts : 10 Join date : 2018-10-15

ralfh wrote:

ahnmaria wrote:: What is the meaning of ASCII?

Character data is represented in a computer by using standardized numeric codes which have been developed. The most widely accepted code is called the American Standard Code for Information Interchange ( ASCII). The ASCII code associates an integer value for each symbol in the character set, such as letters, digits, punctuation marks, special characters, and control characters.

Some implementations use other codes for representing characters, but we will use ASCII since it is the most widely used. The ASCII characters and their decimal code values are shown in Table 4.2. Of course, the internal machine representation of characters is in equivalent binary form.

I have a link that will help you guys to better understand ASCII code
thank me later drunken

Guru Posts : 10 Join date : 2018-10-15

ahnmaria wrote:: What is the difference between sequential and chronological order?

chronological has a number order and sequential has a sequence by condition given.

Guru Posts : 10 Join date : 2018-10-15

Can you suggest guys another way of sorting data?

Guru Posts : 10 Join date : 2018-08-28

ahnmaria wrote:: What is the meaning of ASCII?

abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes are based on ASCII, although they support many additional characters.

Guru Posts : 10 Join date : 2018-08-28

rachellgrace wrote:

ahnmaria wrote:: What is the difference between sequential and chronological order?

chronological has a number order and sequential has a sequence by condition given.

a little bit confusing haha but rachell got it right chronological is arranging things in order and sequence is often follows a numerical or alphabetical order, but it can also describe things that aren't numbered but still need to take place in a logical order, such as the sequential steps you follow for running a program on your computer.

Guru Posts : 10 Join date : 2018-10-15

ahnmaria wrote:: What is the difference between sequential and chronological order?

there is no difference actually they are both the same function

Guru Posts : 10 Join date : 2018-10-15

rachellgrace wrote:: Can you suggest guys another way of sorting data?

Yes me too is interested the other method of sorting

Guru Posts : 10 Join date : 2018-10-15

Why it is important to use numerical values when comparing element?

Guru Posts : 10 Join date : 2018-10-15

rachellgrace wrote:: Can you suggest guys another way of sorting data?

invented by Donald Shell
Algorithm

start separation = number of elements / 2
compare a[i] and a[i+separation]
swap if necessary
do for each element of array i = 0 to a.length – separation
set separation = separation /2
recompare all the elements

separation calculation

shell suggested /2
other sequences give great improvement
note figure 7.3 does not / 2 properly

Code Methods: shellsort
Average Case Shellsort : Open Problem

Guru Posts : 10 Join date : 2018-10-15

rach wrote:

rachellgrace wrote:: Can you suggest guys another way of sorting data?

invented by Donald Shell
Algorithm

start separation = number of elements / 2
compare a[i] and a[i+separation]
swap if necessary
do for each element of array i = 0 to a.length – separation
set separation = separation /2
recompare all the elements

separation calculation

shell suggested /2
other sequences give great improvement
note figure 7.3 does not / 2 properly

Code Methods: shellsort
Average Case Shellsort : Open Problem

credits to the website. pls visit codeworldtechnology.wordpress.com

Guru Posts : 10 Join date : 2018-10-15

these would help in my program thank you!

Guru Posts : 10 Join date : 2018-10-15

rach wrote:

rachellgrace wrote:: Can you suggest guys another way of sorting data?

invented by Donald Shell
Algorithm

start separation = number of elements / 2
compare a[i] and a[i+separation]
swap if necessary
do for each element of array i = 0 to a.length – separation
set separation = separation /2
recompare all the elements

separation calculation

shell suggested /2
other sequences give great improvement
note figure 7.3 does not / 2 properly

Code Methods: shellsort
Average Case Shellsort : Open Problem

credits to the website. pls visit codeworldtechnology.wordpress.com

I have visited the website and it gives me 10 different sorting of data wow