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Nizamuddin Siddiqui has Published 2307 Articles
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Nizamuddin Siddiqui
208 Views
To find the row median of columns having same name in R data frame, we can follow the below steps −First of all, create a data frame with some columns having same name.Then, use tapply along with colnames and median function to find the row median of columns having same ... Read More
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Nizamuddin Siddiqui
4K+ Views
To increase the width of axes tick (both X-axis and Y-axis at the same time) using ggplot2 in R, we can use theme function with axis.ticks argument where we can set element_line argument size to a larger value.For Example, if we have a data frame called df that contains a ... Read More
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Nizamuddin Siddiqui
5K+ Views
To increase the width of axes (both X-axis and Y-axis at the same time) using ggplot2 in R, we can use theme function with axis.line argument where we can set element_line argument to a larger value.Check out the Example given below to understand how it can be done.ExampleFollowing snippet creates ... Read More
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Nizamuddin Siddiqui
466 Views
To convert first letter into capital in single column data frame in R, we can follow the below steps −First of all, create a data frame with string column.Then, use sub function along with mutate function of dplyr package to convert first letter into capital in string column.ExampleCreate the data ... Read More
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Nizamuddin Siddiqui
1K+ Views
To change the border style of a plot using ggplot2 in R, we can use theme function with panel.border argument where we can change the linetype for the plot border using element_rect. There are many linetypes and we can use them as desired.Check out the Example given below to understand ... Read More
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Nizamuddin Siddiqui
4K+ Views
To extract the first n values of all elements of a list in R, we can follow the below steps −First of all, create a list.Then, use head function with sapply function to extract the first n values of all elements in the list.Example 1Create the listLet’s create a list ... Read More
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Nizamuddin Siddiqui
935 Views
To find the column name that contains value greater than a desired value in each row of an R data frame, we can use apply function along with lapply function.For Example, if we have a data frame called df and we want to extract column names for each row having ... Read More
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Nizamuddin Siddiqui
115 Views
Sometimes we want to graphs that looks like graphs on a white paper having no axes labels, axes titles, and ticks, therefore, we can use theme_classic function of ggplot2 package.For Example, if we have a data frame called df that contains two columns say x and y then we can ... Read More
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Nizamuddin Siddiqui
4K+ Views
To extract the last value of all elements of a list in R, we can follow the below stepss −First of all, create a list.Then, use tail function with sapply function to extract the last value of all elements in the list.Example 1Create the listLet’s create a list as shown ... Read More
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Nizamuddin Siddiqui
596 Views
To repeat a whole data.table object in R, we can follow the below steps −First of all, create a data.table object.Then, use rep function to repeat the data.table object.ExampleCreate the data.table objectLet’s create a data.table object as shown below −library(data.table) xRead More