Skip to main content

SPSS for Biologists: How to perform basic Fisher's or Chi-square test ?


SPSS for Biologists: How to perform basic Fisher's or Chi-square test?


SPSS (Statistical package for the social sciences) is the set of software programs that are combined together in a single package. This data can be mainly used for

                               

Interestingly, the 21st century is becoming testing times for all basic researchers who are not equipped with dealing the big data. These terms, data science or big data, look extremely challenging to researchers specially to biologists. 

Aim of Tutorials

The aim of making these tutorials is to help the biologists to improve  their skills to deal with large amount of biological data.The first and the most 
basic is how to use of Chi Square test/Exact Fisher Test.

CHI Square Test
                              
A Chi-square test is one way to show the relationship between two variables. Chi-Square statistics is the single number that tells you how much difference exists between expected count and the observed count.


The Chi Square statistic is commonly used for testing relationships between categorical variables. It is used to determine if there is a significant association between two variables. As in this tutorial,I have explained  in detail how to do it.
We have the dataset of different patients with details about the respective disease. For example their diagnostic Age, Stage of the disease, activeness and inactiveness  of the genes etc.

Considering each parameter as a variable, what we do is finding out the independency of each variable.  


  • In biological terms we compare the gene activation/inactivation of each patient data with other clinical features like Metastasis,Tumour Stage and age etc.
  • This test will give us the results of association between two or more variables, as we know P value less than 0.05 will be considered significant (showing the positive association).
THANK YOU


Comments

Post a Comment

Popular posts from this blog

A Complete Guide for Autodock Vina

 Hello Everyone, In the following video we will explain how to use Autodock Vina for Molecular Docking. The video contains details about Downloading Installation Protein-Ligand Docking Tutorial
Post a Comment
Read more

A BIOINFORMATICS SOFTWARE FOR MULTIPLE SEQUENCE ALLIGNMENT

Phylogenetic Analysis:A tutorial for  how to  Install MEGA Software In this video,I have explained about the installation of MEGA Software step wise. MEGA SOFTWARE MEGA is a useful software in constructing phylogenies and visualizing them, and also for data conversion. Features  It can easily convert Alignment files to PHYLIP. The MEGA tree explorer is helpful in editing trees very easily, subtrees can also be selected and edited separately. The input formats are NEWICK, PHYLIP, MEGA, and NEXUS. The Phylogenetic tree can also be converted in newick format.
Post a Comment
Read more

SPSS FOR BIOLOGISTS: Forecasting Analysis using IBM Statistics

EXPECTED OUTCOME OF COVID 19 USING FORECASTING ANALYSIS Forecasting is basically a statistical approach to make predictions for  the future on the basis of past or present observation.In biological terms, this approach is quite beneficial for the researchers to give predictions about any pandemic situation on the basis on previous knowledge/observation. For instance,We can calculate the substantial number of the patients that are going to be affected using Forecasting Analysis. AIM OF THIS TUTORIAL In this tutorial we try to explain about the current COVID 19 Pandemic situation respectively in Pakistan.We have the corresponding data about the patients per million for 4 weeks.On this basis ,we have predicted the increase in numbers for next 7 days by applying forecasting Analysis For more details about how to do Forecasting Analysis watch the video THANK YOU!!
Post a Comment
Read more