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R Programming Articles
Page 10 of 174
How to find the starting position for consecutive values given the length of consecutive values in an R vector?
To find the starting position for consecutive values given the length of consecutive values in an R vector, we can follow the below steps −First of all, create a vector with duplicated values.Find the run length.Create a vector with FALSE of vector size.Find the starting position by setting running length of consecutive values to TRUE for given length.Create the vectorLet’s create a vector having many duplciates so that we can get same consecutive values −x
Read MoreHow to find the confusion matrix for linear discriminant analysis in R?
To find the confusion matrix for linear discriminant analysis in R, we can follow the below steps −First of all, create a data frame.Create new features using linear discriminant analysis.Find the confusion matrix for linear discriminant analysis using table and predict function.Create the data frameLet's create a data frame as shown below −Group
Read MoreHow to create a clone of a data frame in R without data values?
To create a clone of a data frame in R without data values, we can follow the below steps −First of all, create a data frame.Then, create the clone of the data frame by subsetting zero rows.Example 1Create the data frameLet's create a data frame as shown below −x1
Read MoreHow to find the maximum of each outcome of two throws of a die in R?
To find the maximum of each outcome of two throws of a die, we can follow the below steps −Create the outcome of two throws of a die using expand.grid function.Finding the maximum of each outcome using pmin function.Generating the outcome of two throws of a dieUse expand.grid function to create the outcomes of throwing a die two times as shown below −M
Read MoreHow to create a table of frequency for range of values in an R data frame column?
To create a table of frequency for range of values in an R data frame column, we can follow the below steps −First of all, create a data frame.Then, use table function with cut function to create the table of frequency for range of values.Example 1Create the data frameLet's create a data frame as shown below −x
Read MoreHow to perform Friedman test in R?
To perform Friedman test in R, we can follow the below steps −First of all, create a matrix.Then, use friedman.test function to perform the Friedman test.Example1Create the matrixLet's create a data matrix as shown below −First
Read MoreHow to return a logical value for a t test based on 0.05 level of significance in R?
To return a logical value for a t test based on 0.05 level of significance in R, we can follow the below steps −First of all, create a data frame with one column.Apply t.test function with ifelse to return logical value based on 0.05 level of significance.Example1Create the data frameLet's create a data frame as shown below −x
Read MoreHow to find the row minimum excluding zero in R data frame returning 0 if all 0?
To find the row minimum excluding zero in R data frame returning 0 if all 0, we can follow the below steps −First of all, create a data frame.Then, find the row minimum by excluding zero using if function with apply function.Example1Create the data frameLet's create a data frame as shown below −x1
Read MoreHow to create a scatterplot with dark points using ggplot2 in R?
To create a scatterplot with low intensity of points using ggplot2, we can follow the below steps −First of all, create a data frame.Then, create the scatterplot.Create the scatterplot with scale_color_hue function for dark points.Create the data frameLet's create a data frame as shown below −x
Read MoreHow to create a scatterplot with low intensity of points using ggplot2 in R?
To create a scatterplot with low intensity of points using ggplot2, we can follow the below steps −First of all, create a data frame.Then, create the scatterplot.Create the scatterplot with scale_color_hue function for low intensity of points.Create the data frameLet's create a data frame as shown below −x
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