Skip to main content

Featured Post

Data Mining with Weka -Installation

Weka - Data mining Tool W eka is a tool for big data and data mining. It is used to various classification, experiments, and analysis over large data sets. Installation Guide -weka  You can download Weka from   here   and follow the normal installation procedure. After completion you will get following window, here you can begin your classification or experiment on different data sets with Weka.
Post a Comment

Introduction to Applied Statistics and It's Software Environment

             Introduction to Applied Statistics

Applied Statistics is a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters. In applying statistics such as a scientific, industrial, or societal problem, it is necessary to begin with a population or process to be studied. Populations can be diverse topics such as "all persons living in a country" or "every atom composing a crystal". It deals with all aspects of data including the planning of data collection in terms of the design of surveys and experiments.

                   Software Environment


The S, S plus, Mat lab and R environments are an integrated suite of software facilities for data analysis and graphical display with the feature like an extensive and coherent collection of tools for statistics and data analysis, language for expressing statistical models and tools for using linear and non-linear statistical models, Graphical facilities for data analysis and display either at a workstation or as hard copy and an effective object-oriented programming language that can easily be extended by the user community. Most things done in S are permanent; in particular, data, results and functions are all stored in operating system files and referred to as objects.


Technically S is a function language. Elementary commands consist of either expressions or assignments. If an expression is given as a command, it is evaluated, printed and the value is discarded. An assignment evaluates an expression and passes the value to a variable but the result is not printed automatically. An expression can be as simple as 2 + 3 or a complex function call. Assignments are indicated by the assignment operator.
 Example for S and R Environments:
> 4 + 2
   -> 6
> sqrt(3/4)/(1/3 - 2/pi^2)
   -> 6.6265
> library(MASS)
> data(chem) # needed in R only
> mean(chem)
   -> 4.2804
> m <- mean(chem); v <- var(chem)/length(chem)
> m/sqrt(v)
  ->3.9585


(Note: R is widely used open source language for applied statistics you can download R from here and start through normal installation procedure and directly use above example)
Labels:

Comments

Post a Comment

Popular posts from this blog

Roles of multimedia team members

  Multimedia Team ( Project manager, Multimedia Designer, Interface Designer, Writer, Video Specialist, Audio Specialist, Multimedia Programmer, The Sum Of the parts ). A typical team for developing multimedia for CD-ROM or the Web consists of people who bring various capabilities to the table. Often, individual members of multimedia production teams wear several hats. 1.       Project Manager: A project manager’s role is at the center of the action. He or she is responsible for overall development and implementation of a project as well as for day-to-day operations. Budgets, schedules, creative sessions, time sheets, illness, invoices, team dynamics-the project manager is the glue that holds it together.                         2.       Multimedia Designer : Multimedia designers need variety of skills. We need to be able to analyze content structurally and match it up with effective presentation methods. We need to be an expert on different media types, and capable media inte
1 comment
Read more

Stages and Requirements of multimedia of project

  THE STAGES OF PROJECT :   Most multimedia and Web projects must be undertaken in stages. Some stages should be completed before other stages begin, and some stages may be skipped or combined. Here are the four basic stages in a multimedia project. Planning and costing : A project always begins with an idea or need that we refine by outlining its messages and objective. Before we begin developing, plan what writing skills, graphic art, music, video, and other multimedia expertise will be required. Develop a creative graphic look and feel, as well as  a structure and navigation system that will let the viewer visit the messages and content, estimate the time needed to do all elements, and prepare a budget. Work up a short prototype or proof of concept  Designing and Producing :  The major goal of this phase is to translate the problem studied in the first phase and design made in second phase into proper a finished project. Generally, pr
Post a Comment
Read more

C-program(Sequence) Age group display

14. Write a program to find age group on the basis of age . Age/Group: 0-10/Child, 10-19/Teenage, 19-40/Young, Above40/Old. #include<stdio.h> #include<conio.h> void main() { int age; printf("Enter the age of person:"); scanf("%d",&age); if(age>0 && age<=10) printf("Child"); else if(age>10 && age<=19)   printf("Teenage");   else if(age>19 && age<=40)   printf("Young");   else   printf("Old");   getc h(); }
Post a Comment
Read more