For Data Science Learners
R for Data Science
Error attempt to apply non function in r, The “attempt to apply non-function” error message in R usually appears when we try to use a variable as a function or call a non-function object as if it were a function. In other words, R expects a function to be called, but instead, it receives a…
Error-list-object-cannot-be-coerced-to-type-double-2 in R, a list is a commonly used data structure that can hold different types of objects such as vectors, data frames, matrices, and even other lists. However, in some cases, we may want to convert a list object into a different type of object, such as a numeric or character vector, or a…
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Data Science Strategies for Improving Customer Experience in R, Customer experience plays a crucial role in the success of any business. In today’s data-driven age, companies have access to vast amounts of customer data that can be used to improve the customer experience. In this article, we will explore data science strategies for improving customer…
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Aggregate daily data to monthly and yearly in R, Data aggregation is an important step in data analysis that involves summarizing data in a coarser temporal resolution for ease of analysis and visualization. For example, daily data can be aggregated into monthly or yearly data, allowing for better identification of trends and patterns. In this…
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Apply Central Limit Theorem in R, The Central Limit Theorem is a fundamental concept in statistics that states that the sample means of independent and identically distributed random variables, with a large enough sample size, will follow a normal distribution. This theorem has significant implications for statistical analysis as it allows us to apply statistical…
Predict potential customers in R, Finding variables that can be utilized to determine whether a potential customer is a high earner may be of interest to a marketing analyst. Information from the 1994 United States Census, which includes records from 32561 adults and a binary variable indicating whether each person makes more than $50000 or…
Number to Percentage in R, I’ll describe how to express numerical numbers in % using the R programming language on this page. Let’s go to the R syntax right away: The following example vector serves as the foundation for this tutorial’s examples: # design a sample vector x <- c(11.2, 12.5, 10.103, 37, 30.1501) Our…
Return the corresponding value of Cauchy density in R, You will discover how to use the Cauchy functions in this R tutorial. There are four applications of dcauchy, pcauchy, qcauchy, and rcauchy on this article. Example 1: Return the corresponding value of Cauchy density in R I’ll demonstrate how to make a density plot of…
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How to check regression analysis heteroscedasticity in R, To check for heteroscedasticity in a regression analysis, utilize the Breusch-Pagan test. How to check regression analysis heteroscedasticity in R Using the built-in R dataset mtcars, we will train a regression model in this example. To check for heteroscedasticity, we will next use the bptest function from…
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How to Visualize PCA Results in R, An unsupervised machine learning technique called principal components analysis (PCA) looks for primary components that account for a significant amount of the variation in a dataset. A biplot, which plots every observation in a dataset on a plane defined by the first two main components, can be used…
