Information is Gateway

  The ancient Babylonians pressed the tips of their fingertips into clay to record business transactions. The Chinese used ink-on-paper finger impressions for business and to help identify their children. A few years later, Scottish doctor Henry Faulds was working in Japan when he discovered fingerprints left by artists on ancient pieces of clay. This finding inspired him to begin investigating fingerprints. In 1880, Faulds wrote to his cousin, the famed naturalist Charles Darwin, and asked for help with developing a fingerprint classification system. Darwin declined, but forwarded the letter to his cousin, Sir Francis Galton. Francis Galton has done much of fundamental work in statistics. He used to prepare questionnaire, distribute them among people's and request them to fill them up. He use to collect information like: there likes, disklikes, health etc. But that time, it was known that fingerprints of people are different...

 We have previously discussed about all the object of R language but, they are pretty confusing all at one time. So, let's discuss about there important difference. So, let's start 1) Vector and List are same but only difference is there data.  -Let take a example if you want to store data of same data type then we use vector with function c(). - Where as to store different types of data we use List with function list() 2) Array and Matrix are also more over same but the important difference is that with array we print a data in rows and columns with dim attribute but only we can only print it one time.  -But with Matrix function we can print the same data any number of times. 3) Last but not the least as we say it, is Data Frame in this data are printed in frame for instance in database.             Rollno. Name percentage 1 1 Daniel 89 2 2 Tina 89 3 3 Ross ...

 In this post we will see various method of list and Array. In previous post we Saw about vector and matrix, I hope this will be also easy for you. Let's start. List: We can say list and vector are pretty much similar but the only difference and the important one is that vector consist of same data element where as list consist of different types of data element.  To create a list we use a function called list() Here list take input from vector only but of different type at same time. So, make it clear let's see the example: Name<- c("Adam","Steve","Tom","Robert") Rollno <-  c (1,2,3,4) Mylist<- list(Name, Rollno) print (Mylist) Output:                [1]  "Adam" "Steve" "Tom" "Robert"                [1] 1 2 3 4  So, Over here we tooked different type of data element in list via vector only,  but this functionality is not allowed in vector. Array: Array is collection of...

 Hello everyone, In the last post We all saw about R language basic concept which was pretty easy right, so today we are going to start with vectors and matrix in R language. So let's start. Vector: vector consist of Data element in of same data type. The data element of a vector are called component.  To create a vector we use a function i.e. c(). Example: 1) a <- c(1,2,3,4,5,6,7)                    Print (a) Output: 1,2,3,4,5,6,7. 2) a<-c(1:10)     print (a) Here colon is used as a range from 1 to 10 Output: 1,2,3,4,5,6,7,8,9,10. To find a length of vector we use a function length (). length (a)    # output will be 10 for second example. To print a particular element in vector we use a square bracket ([]) i.e. a[5]   # This will print the fifth Element of vector. Matrix: Matrix is a collection of data element which are arrange in 2dimensional rectangular layout.   To create a Matrix we...

 There are millions of programming languages out there. But each one's have different functionality and uses. So, today we gonna talk about R language.  R language was developed by Ross Ihaka and Robert Gentleman in 1993. This language is basically used for statistical analysis and graphical representation of data.  So, as you know all language has different syntax and token's let's see about R language. 1) Comment : Comment are basically a sentence in the program which is not executed it is just use to make program more informative for the person who is reading your program. To use comment we use a symbol hash (#). Ex: #program to print Hello World. 2) Variables: variables are basically a place to store a data. Ex: a=10. Here a is a variable of type numeric. There are certain rules for creating variables which are  1) variable name must start With a letter only.  2) But variable can contain underscore (_) and Dot sign, no special characters are used Ex: Of inva...