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Type I Error in R
Last Updated: 25 July 2025
A Type I error occurs when we reject a true null hypothesis. In simpler terms, it means detecting an effect or difference that doesn’t actually exist. This kind of false p...
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How to Use SMOTE for Imbalanced Data in R
Last Updated: 11 July 2025
SMOTE (Synthetic Minority Over-sampling Technique) is a method used to handle imbalanced data by creating new samples for the minority class. Instead of copying existing ...
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as.numeric() Function in R
Last Updated: 24 July 2025
The as.numeric() function in R programming language is used to convert an object into a numeric type. It is commonly used when data is in character or factor format but ne...
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Compute Summary Statistics In R
Last Updated: 25 July 2025
Summary statistics are values that describe and simplify a dataset. They include measures like mean, median, mode, range, standard deviation and variance. These values hel...
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Reshaping data.frame from wide to long format in R
Last Updated: 22 July 2025
Reshaping a data frame from wide to long format in R Programming Language is a common operation when dealing with data analysis and visualization. The process involves con...
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dplyr Full Join in R
Last Updated: 24 July 2025
The dplyr package in R programming language provides functions to combine datasets using various types of joins. A full join includes all rows from both data frames, addin...
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Replace Values Based on Condition in R
Last Updated: 21 July 2025
In R programming language, we can change (replace) certain values in a dataset only when a condition is true. This is called replacing values based on a condition.Method 1...
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Sum of rows in R based on condition
Last Updated: 21 July 2025
To find the sum of rows in R based on a condition, we select only the rows that match the condition and then use the sum() function to add their values.Method 1: Sum of Ro...
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Systematic Sampling in R
Last Updated: 29 July 2025
Systematic sampling is a statistical sampling method where elements from a larger population are selected at regular intervals with a fixed sampling interval. The process ...
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Subset Data Frames Using Logical Conditions In R
Last Updated: 21 July 2025
Subset Data Frames Using Logical Conditions in R programming language means selecting specific rows from a data frame where certain logical conditions are true, such as va...
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Filter Rows Based on Conditions in a DataFrame in R
Last Updated: 21 July 2025
To filter rows in a data frame using R, we can apply conditions directly to the columns. R offers several ways to perform this, depending on whether the condition is singl...
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Sum of column in R based on condition
Last Updated: 21 July 2025
Sum of Column in R based on condition refers to calculating the total of values in a column after applying specific conditions. This helps in filtering the data before per...
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Find last occurrence of a data frame in R
Last Updated: 21 July 2025
To find the last occurrence of a row or value in a data frame, R programming language provides built-in functions like tail() and which.max(). These functions help extract...
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Stratified Sampling in R
Last Updated: 25 July 2025
Stratified sampling involves splitting a population into different groups based on a common characteristic and then randomly selecting members from each group. This method...
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Convert Tibble to Data Frame in R
Last Updated: 23 July 2025
Tibbles are a type of data frame in R Programming Language that has an enhanced print method, making it easier to display data. However, in some situations, we may need to...
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