Write a R program to convert a given pH levels of soil to an ordered factor

  • برمجة R

Write a R program to convert a given pH levels of soil to an ordered factor.

Note: Soil pH is a measure of the acidity or basicity of a soil. pH is defined as the negative logarithm of the activity of hydronium ions in a solution.
In soils, it is measured in a slurry of soil mixed with water, and normally falls between 3 and 10, with 7 being neutral.

الأجوبة

ph = c(1,3,10,7,5,4,3,7,8,7,5,3,10,10,7)
print("Original data:")
print(ph)
ph_f = factor(ph,levels=c(3,7,10),ordered=TRUE)
print("pH levels of soil to an ordered factor:")
print(ph_f)

Sample Output:

[1] "Original data:"
 [1]  1  3 10  7  5  4  3  7  8  7  5  3 10 10  7
[1] "pH levels of soil to an ordered factor:"
 [1] <NA> 3    10   7    <NA> <NA> 3    7    <NA> 7    <NA> 3    10   10   7   
Levels: 3 < 7 < 10
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