Variable management in STATA

Data entered in STATA can be classified either as numeric or string type. Associated with each type of data is its storage type i.e. the numbers are stored as byte, int, long, float, or double. STATA takes “float” as the default storage type for its variables. Similarly byte, int and long are usually used to hold integers. The table given below defines the storage type with minimum and maximum value for each variable along with byte size. Read more »

Creating a do-file

Do-file is an interface in Stata which allows the researcher to compile all the commands and results at one place. Once the commands are stored in do file, one do not need to enter the command again. One can simply run the do file and get all the results at once. Unlike SPSS wherein, the output sheet is automatically generated every time you run a test. All the commands and results in this file can be mailed together. Read more »

Correlation analysis using STATA

Correlation analysis is conducted to examine the relationship between dependent and independent variables. There are two types of correlation analysis in STATA.

  1. Pairwise correlation which treat each pair of variables separately and only includes observations which have valid values for each pair in the data set.
  2. The second type of correlation is the normal correlation which takes the entire data set as one and calculates the correlation for all valid values.

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Introduction to STATA

STATA, like SPSS is a smart data analysis tool used for data management and analysis. It is a fast and easy to use, across all operating systems such as Windows, Unix and Mac. Our module is based on Windows version of STATA 11.0. Read more »

Determining the impact of an event on share prices using the event study

Event study helps to determine the effect of an event on a dependent variable. In most cases event study is used to determine the impact of an event on the stock prices of a company. The main motive of the event study is to find whether the event has abnormal returns on the prices of the stock. In other words whether the prices would have changed if the event has not taken place. To conduct the event study following steps can be followed: Read more »

Things you should know about writing a non plagiarised paper

The very first time when you start your work on an independent research, you should abide by guidelines on how you should avoid plagiarism. However, not everyone is sure what a plagiarised paper is. In simple terms, Plagiarism is a “practice of taking someone else’s work or ideas and presenting them as one’s own” (UK Quality Code for Higher Education, 2005). Read more »

Plagiarism is a menace and a major issue in India and the West

The problem of plagiarism is growing bigger and bigger in the present education system, not limiting itself to a specific region but all over the world. As Paldy (1996) has phrased, “the problem (of plagiarism) won’t go away”, leading it to emerge as a common and widespread problem. The notion of literary theft existed from time immemorial. It was first coined by Elizabethan playwright Ben Johnson at the beginning of the 17th century. Later with the advent of copyright laws, right of authorship was confirmed, antagonizing the plagiarists. But in the recent world of internet, the opportunity of plagiarizing others’ literary works have increased manifold. Read more »

Solutions to the problems faced during statistical analysis using panel data

In one of my recent projects I had to use panel data for analysis. During the data analysis I faced some problems which may be the most common problems in panel data analysis. So here are some of the problems with their possible solutions that helped me.

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