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Artificial Intelligence - R Programming Advanced

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Lesson Description


Lession - #965 R Mode


Mode

The mode value is the value that appears the most number of times.
R does not have a function to calculate the mode. However, we can create our own function to find it.
If we take a look at the values of the
wt
variable (from the
mtcars
data set>
, we will see that the numbers 3.440 are often shown:
Sorted observation of wt (weight>
1.513 1.615 1.835 1.935 2.140 2.200 2.320 2.465
2.620 2.770 2.780 2.875 3.150 3.170 3.190 3.215
3.435 3.440 3.440 3.440 3.460 3.520 3.570 3.570
3.730 3.780 3.840 3.845 4.070 5.250 5.345 5.424
Instead of counting it ourselves, we can use the following code to find the mode:
Example
Data_Cars <- mtcars

names(sort(-table(Data_Cars$wt>
>
>
[1]
Result:

  [1] "3.44"
From the example above, we now know that the number that appears the most number of times in mtcars wt variable is 3.44 or 3.440 lbs.