What is data representation

How data can be represented?
Data can be represented in various ways such as: .
1. Graphical representation of data: Graphic representation refers to the visual display of data.
What is data representation in machine learning?
A machine learning model can't directly see, hear, or sense input examples.
Instead, you must create a representation of the data to provide the model with a useful vantage point into the data's key qualities.
That is, in order to train a model, you must choose the set of features that best represent the data..
What is meant by data representation?
By data representation is meant, in general, any convention for the arrangement of things in the physical world in such a way as to enable information to be encoded and later decoded by suitable automatic systems..
What is the mean in data representation?
The mean can be calculated only for numeric variables, no matter if they are discrete or continuous.
It's obtained by simply dividing the sum of all values in a data set by the number of values.
The calculation can be done from raw data or for data aggregated in a frequency table..
A piece of computer memory can be represented by a series of 0's and 1's, with one digit for each bit of memory; the value 1 represents an “on” bit and a 0 represents an “off” bit.
This notation is described as binary form.
Representation of data structure in memory is known as Abstract Data Type.
Abstract data types can be a list, stack, or queue which will be used to represent different data structures in memory.

Data Representation refers to the form in which data is stored, processed, and transmitted. • Devices such as smartphones, iPods, and computers store data in digital formats that can be handled by electronic circuitry.

Pictorial Representation of Data: Bar Chart

The bar graph represents the qualitative data visually. The information is displayed horizontally or vertically and compares items like amounts

Graphical Representation of Data: Frequency Distribution Table

A frequency table or frequency distribution is a method to present raw data in which one can easily understand the information contained in the

Graphical Representation of Data: Histogram

The histogram is another kind of graph that uses bars in its display. The histogram is used for quantitative data

Graphical Representation of Data: Pie Chart

The pie chart is used to represent the numerical proportions of a dataset. This graph involves dividing a circle into different sectors

Graphical Representation of Data: Line Graph

A graph that uses points and lines to represent change over time is defined as a line graph. In other words

General Rules For Visual Representation of Data

We have a few rules to present the information in the graphical representation effectively, and they are given below: 1

Solved Examples on Data Representation

Q.1. Construct the frequency distribution table for the data on heights in (cm)(cm) of 2020 boys using the class intervals 130–135,135–140130–135

Summary

In the given article, we have discussed the data representation with an example

FAQs on Data Representation

Q.1: How is data represented? A: The collected data can be expressed in various ways like bar graphs, pictographs, frequency tables, line graphs

What data representations can be used to communicate qualitative data?

A variety of data representations can be used to communicate qualitative (also called categorical) data

A table summarizes the data using rows and columns

Each column contains data for a single variable, and a basic table contains one column for the qualitative variable and one for the quantitative variable

The methods used to represent information in computers are known as data representation. The computer system can store a variety of data types. Numeric data, text, executable files, pictures, audio, and video are all examples of computer data representation. To us, as humans, each of these will appear differently.The way that we stored, processed, and transmitted data is referred to as data representation. We can use any device, including computers, smartphones, and iPads, to store data in digital format. The stored data is handled by electronic circuitry. A bit is a 0 or 1 used in digital data representation.Data representations are graphics that display and summarize data and help us to understand the data's meaning.

What is data representation

How data can be represented?