Publications by Statistics & R
Covid-19 Shinyapp
The data displayed by this {shinyapp} is taken from Johns Hopkins University Center for Systems Science and Engineering (JHU CCSE). The raw data is available on {Github}. The data is updated on daily basis. Packages needed for the app: library(easypackages) # install.packages("easypackages") libraries("lubridate", "tidyverse", "readr", "plotly") ...
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Comparing means of two independent groups
This shinyapp helps researchers/students to decide on the type of test to be done when having 2 groups. Sometimes it is possible to forget a certain assumption. For this reason this app helps in providing more confidence for choosing the right test. Related To leave a comment for the author, please follow the link and comment on their blog: St...
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Installing older version of a package
In many situations when you install a new package, R will ask you whether you want to update to the updated versions of existing packages in your library. However, the main problem is sometimes in the updated version, a certain function might have been completely removed and thus could mess up your pre-existing code in use. In this post, I will s...
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Chi-square tests
Chi-square test is a statistical method used for analysis of categorical data. There are 2 types: 1. Goodness of fit Known as: * Chi-square for 1 sample * Chi-square for given proportions Purpose : Comparing the observed frequency to the expected frequency based on a theoretical law specified in the null hypothesis. 2. Goodness of associati...
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Covid-19 Vaccination Race
It took Scientists ~ 10 months to come up with the vaccine against Covid-19. Now its up to governments and people’s awareness to help eradicate the virus. For this reason this shinyapp helps monitor the vaccination status of the countries that have initiated vaccinations. Don’t be those people! Related To leave a comment for the author, pl...
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Shinyapp to monitor Covid-19 cases, deaths, recoveries and vaccinations
The data pertaining to cases, deaths and recoveries is pooled from Johns Hopkins University Center for Systems Science and Engineering (JHU CCSE). Vaccination data is pooled from Our world in data. Both sources update the data sets on a daily basis and the app pools data automatically. Below are a few screenshots taken from the shinyapp. The app ...
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Dropping levels in a factor variable
Assume you have a data frame (df) for patients taking a specific drug. The data consists of a factor variable (Drug) and a numeric variable (N_patients). Drugs N_patients Drug 1 50 Drug 2 40 Drug 3 23 Drug 4 92 Drug 5 70 Later on you filter the data frame for specific levels in the factor variable and saved it in a new data frame cal...
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