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 90 4 4 Joey