Programming Articles - Page 1125 of 3366

To find confidence interval for binomial distribution in R, we can use binom.confint function of binom package. This will result in confidence intervals based on many different methods. Check out the below examples to understand how it can be done.Example 1Loading Binom package and finding 95% confidence interval for a binomial distribution with sample of size 20 in which 5 outcomes are favourable −library(binom) binom.confint(5, 20, conf.level=0.95)Output      method    x n    mean       lower     upper 1 agresti-coull 5 20 0.2500000 0.10808718 0.4724754 2 asymptotic    5 20 0.2500000 0.06022730 0.4397727 3 bayes   ... Read More

To find the table of mean of a numerical column based on two factors in R data frame, we can follow the below steps −First of all, create a data frame with two factor and one numerical column.Then, find the table of mean of numerical column based on factor columns using tapply function.Example1Let’s create a data frame as shown below − Live DemoGroup1

To align the text horizontally in a bar plot created by using ggplot2 in R, we can follow the below steps −First of all, create a data frame.Then, create the bar plot using ggplot2 with text displayed on each bar.After that, create the same bar plot with text aligned horizontally.Create the data frameLet’s create a data frame as shown below − Live DemoCategory

To assign a value to a base R plot, we can follow the below steps −First of all, create a vector and its histogram then record it with recordPlot function in an object.Then, use dev.off function to remove the plot.After that, read the plot with object name.Create the vector and histogram then save it in an objectLet’s create a vector of normal distribution and create its histogram then save it in an object called Histogram using recordPlot as shown below − Live Demox

To display mean per group in facetted graph using ggplot2 in R, we can follow the below steps −First of all, create a data frame.Then, create the facetted scatterplot between two columns.After that, create the facetted scatterplot and add geom_line with mean calculated for y values.Create the data frameLet’s create a data frame as shown below − Live Demox

To create scatterplot by standardizing the columns of a data frame using ggplot2 R, we can follow the below steps −First of all, create a data frame.Then, create the scatterplot using ggplot2 with raw values.After that, create the scatterplot with scale function.Create the data frameLet’s create a data frame as shown below − Live Demox

To create scatterplot by standardizing the columns of a data frame in base R, we can follow the below step −First of all, create a data frame.Then, create scatterplot between two columns with their default value.After that, create the scatterplot with scale function.Create the data frameLet’s create a data frame as shown below − Live Demox

To scale the R data frame by excluding a particular column, we can follow the below steps −First of all, create a data frame.Then, subset the data frame with single square brackets and scale function.Create the data frameLet’s create a data frame as shown below −  Live DemoGroup

To display count on Y-axis for line chart using ggplot2 in R, we can follow the below steps −First of all, create a data frame.Then, create the line chart using geom_line function of ggplot2 package with fill argument counting the values using count function and binwidth set to 1.Create the data frameLet’s create a data frame as shown below − Live Demox

To print matrix without line numbers in R, we can follow the below steps −First of all, create a matrix.Then, print the matrix with as.data.frame and row.names argument set to FALSE.Example1Create the matrixLet’s create a matrix as shown below − Live DemoM1