When some values in a dataset have higher weights than others, the weighted standard deviation is a handy technique to measure the dispersion of those values. To calculate a weighted standard deviation, use the...
Change Legend Position in R, The purpose of this article is to demonstrate how to use R statistical software to add legends to charts. Change Legend Position in R In base R plots, there...
Curve fitting in R, In this post, we’ll look at how to use the R programming language to fit a curve to a data frame. One of the most basic aspects of statistical analysis...
68 95 99 Rule in R, The Empirical Rule, often known as the 68-95-99.7 rule, states that assuming a normal distribution dataset: Within one standard deviation of the mean, 68 percent of data values...
Difference between glm and lm in R, In R, how do you tell the difference between lm and glm? When building intervals in lm, the t-distribution is used, but in glm, the normal distribution...
When a variable has a few values, a frequency table, which may be displayed using a bar chart or barplot in R, is commonly used to summarise the data. We’ll go over the fundamentals...
In R, the cat() function can be used to concatenate several objects. The following is the fundamental syntax for this function: cat(…, file = “”, sep = ” “, append = FALSE)) where: …:...
Age structure diagram also known as a population pyramid, A population pyramid is a graph that depicts a population’s age and gender distribution. It’s a helpful chart for quickly grasping a population’s makeup as...
Calculate Cronbach’s Alpha in R, Cronbach’s alpha is a metric for determining the internal consistency, or reliability, of a set of scale or test items. In other words, a measurement’s reliability refers to how...
Applying the Central Limit Theorem in R, The central limit theorem states that if the sample size is high enough, the sampling distribution of a sample mean is approximately normal, even if the population...
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