Skewing:
Sudden change direction or position.
Is used in:
Mathematics.
Science and technology.
Computing.
Tele communications.
Purpose of skewing:
Used as a measure of symmetry.
Angular dis-continuities will not occur.
Supply voltage is lesser than the rated voltage.
Conductors are placed diagonally instead of straight bars.
Functional diagrams:
Types:
Negative skew:
Left skewed.
Left tail is longer usually appears a right leaning-curve.
Positive skew:
Right skewed.
Right tail is longer usually appears as a left leaning-curve.
Formula to calclate skewing:
Skewness = (3(Mean - Median)) / Standard deviation.
Standarad deviation:
Represented by greek letter sigma (or) latin letter (s).
Measure that is used to quantify amount of variation or dispersion of a set of data values.
Mean:
Defined as an average value of data.
Median:
Even number two middle numbers in the sequence.
Odd number there will be exactly one number.
Mode:
Most frequently occuring value in data.
Skewing images:
Where we use skewing:
Reduce vibration and humming noise in the motor.
In AC and DC.
AC:
Alternating current.
Electric current periodically reverses its direction.
DC:
Direct current.
Unidirectional flow of electric charge.
Advantages:
Independent of scale.
Critical setup can be met.
Disadvantages:
Skew is more data will not be captured correctly at the edge.
Depends on extreme values.
Mean, Median, Mode are not equal in skew.
Hold might worsen.
Examples in daily life:
House hold prices.
Blood pressure.
Distribution of income.
Applications:
Machine learning.
Induction motor.