List of R commands

List of R commands

*name of new variable*<-c(value,value,value,......more values)	Assigning a variable based on a value or a string of values.
*name of new variable*<-*data or more values*	Assigning a variable to a dataset or other value.
attach(*variable*)	Making a matrix of a variable of a dataset.
min(*variable*) or min(*variable*, *vraibale* ….more variables)	Finding the minimum value from a variable or from a string of variables.
max(*variable*) or max(*variable*, *variable* ….more variables)	Finding the maximum value from a variable or string of variables.
lenght(*variable*)	Showing the number of values of a variable.
sum(*variable*)	The sum of all values of a specific variable.
mean(*variable*)	Showing the mean (average) of the values from a variable.
sd(*variable*)	Showing the standard deviation of the values from a variable.
detach(*variabele*)	Detach a matrix from a variable.
median(*variabele*)	Calculating the median from the values that a variable contains.
cor(*variabele1*, *variabele2*)	Showing the correlation between two variables.
plot(*variabele1*, *variabele2*)	Plotting a graph from two variables.
hist(*variabele*)	Making a histogram of a variable.
	Making a boxplot of a variable.
barplot(*variable 1*, *variable 2*, more variables)	Making a bar graph of variables.
dotplot(*variable 1*, *variable 2*)	Making a dot plot of two variables.
pie(*variable*)	Making a pie chart of a variable.
*variable*[*position or name of variable 1*, *position or name of variable 2*]	Finding a value in the matrix of a variable.
read.csv(‘*name of a csv-file*’)	Importing a csv-file in R.
*name of the regression*<-lm(*dependent variable*~*independent variable 1*+*independent variable 2*+*more independent variables*)	Making a regression analysis with a dependent varaibele or one of more independent variables.
summary(*name of the regression*)	Showing the results and data of the regression analysis.