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Linear Regression in Power BI

Linear Regression is Predictive model used for finding the linear relationship between a dependent and one or more independent variables. In regression the dependent variable has to be continuous numerical (not categorical like Green, Yellow etc). In Simple linear regression, we have one independent variable and one dependent variable. It is also known as Univariate linear regression, as there is only one independent variable. In Multiple linear regressions, we have more than one independent variable and one dependent variable. It is also known as multivariate linear regression, as there is more than one independent variable. Now our goal is to predict the home price by using the Simple Linear Regression. (Name of the above table is SimpleLinearRegression ) In this table we have the prices of home based on the Area of that home. Here we have to predict the Price based on the given Area. As we are predicting the price based on the area. So, Price is the dependent variable and ...
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MAC Address

MAC stands for media access control. MAC address is also known as physical address or hardware address or BIA(burnt-in-address).BIA is generally written in Cisco router switches.physical address is generally written in laptop/pc.MAC address is generally written in Mobile. MAC address is globally unic.The MAC address of a device is different from other devices.Many people are thinking there is only one mac address of a device but it is actually wrong ,Because there is no mac address of a laptop .There is a Mac address of your NIC(network interface controller) ,which is connected to your laptop .                                (NIC) If you change your NIC,then the Mac address of your laptop will be changed.NIC is a separate hardware component present in your computer used to connect with the network (home network or internet).There are so many ways that you can connect your laptop with the network like...
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HTTP

   HTTP:- -Http stands for hypertext transfer   protocol. -It is an application layer protocol. -The http is a set of rules for exchanging  files(text, graphics,video, record,images  and other multimedia files) on the   Www(world wide web). -It is an access method to access web   pages used on the internet . -Http is a part of protocol framework   called the internet protocol suite ,which   includes TCP/IP . -Http uses port number 80. Components of Http based system:- Http is a client server protocol , requests are send by one entity,the web user agent.Most of the time the user agent is a web browser. Generally 3 components are in http based based system.Like client, server and proxy . Client and server:- A server is a computing program or device that accepts and responds to requests made over a network.The device the sends request to the server and get response from the s...
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What is computer network ? Types of communication.

Computer Network A computer network is a system in which multiple devices are connected to each other to share information and resources. Types of communication:- (I)Unicast:- One to one communication between two devices in a network Known as Unicast.In this type of communication,there is only one sender and also one receiver . (II) Multicast:- Multicast happens when one user sends message to multiple users at the same time.In this case,there is only one sender and multiple receivers. (III) Broadcast:- Broadcast happens when one user is sending message to all users connected or in range .In this case ,there is one sender and all others are receivers. Let's understand with an suitable example:- -In Unicast transmission,John is sending   information and Sohail is receiving the   information.so,there is one sender and   one receiver. -In multicast transmission,Hari is sending  ...
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What is POP3 and IMAP ? Difference between POP3 and IMAP.

POP3:- -POP3 stands for post office protocol   version 3. -It is a simple protocol with limited   functionality which is used for opening   remote e-mail boxes. -It is a pull protocol. -It is an application layer protocol. -A POP3 sever stores message for each   user until the user logs in using e-mail   client and downloads the message to   their  computer.Once the the message is   downloaded ,it(message) is deleted from   the server. -In POP3,you can access mail from a   single device.once you have downloaded   the mail to your desktop after it you can't   download the same message to your   laptop because the mail had deleted after   first download. -The transfer protocol of POP3 is   TCP(Transmission control protocol).Post   office protocol version 3 uses TCP for   communication and It uses T...
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What is SMTP ?

 SMTP  -SMTP stands for simple mail transfer   protocol. -SMTP is an application layer protocol. -The transfer protocol of SMTP is TCP(Transmission control protocol)    because TCP is a reliable and connection Oriented protocol.TCP gurantees e-mail delivery . -It uses TCP port 25. -A few webmail services like G-mail use   unofficial port 465 for SMTP. -SMTP requires each message in 7-bit   ASCII(American Standard Code for   Information Interchange ) format. -SMTP is used by the client to send mail to servers because SMTP is a push protocol.It is used to send mail from sender to senders mail server and it is also used to send mail to receivers mail server from senders mail server . - Recepient download the mail from the mail server using POP3 or, IMAP .They can also just view the mail on the server by using webmail. Some SMTP commands:  •HELO and EHLO:- Command that initiate a new protocol session...
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What is FTP ?

  FTP -FTP stands for file transfer protocol. -The Transport protocol of FTP is TCP     because it requires reliability. -The port number of FTP is 20/21.Port 20   performs the task of forwarding and   transferring of data and port 21 performs   the task of transmitting of commands. -It is a standard internet protocol provided   by TCP/IP for transmitting the file(which     may contain any kind of digital   information,such as text document,   movie ,image etc.) from one device to   another. -It is mainly used for transferring the web   page files from their creater to the   computer that acts as a server for other   computer on internet and it is also used   for downloading the files to computer   from other servers. -The main competitor for FTP is Http and   now sites runs Http servers instead of   FT...
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