#### The polar equation of a **rose** curve is either #**r** = a cos ntheta or **r** = a sin ntheta#. n is at your choice. Integer values 2,, 3, 4.. are preferred for easy counting of the number of petals, in a period. n = 1 gives 1-petal circle. To be called a **rose**, n has to be sufficiently large and integer + a fraction, for images looking like a **rose**. Apr 02, 2015 · If you set cos ( 4 θ) = 0, you get 4 θ = ( 2 n + 1) π 2 and θ = ( 2 n + 1) π 8, where n is any integer; so one petal is traced out when θ goes from − π 8 to π 8. Notice that the examiner could have also used A = 2 ∫ 0 π 8 1 2 cos 2 ( 4 θ) d θ, and. that your method would have worked if you had divided by 8, since the **rose** has 8 .... Mar 27, 2019 · The **caret Package**. 1 Introduction. 2 Visualizations. 3 Pre-Processing. 3.1 Creating Dummy Variables. 3.2 Zero- and Near Zero-Variance Predictors. 3.3 Identifying Correlated Predictors. 3.4 Linear Dependencies. 3.5 The preProcess **Function**..

**in R**, we can load it by using the following command: data (iris) We can take a look at the first six rows of the dataset by using the head ()

**function**: #view first six rows of iris dataset head (iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 .... random vector x deﬁned on Rd, with an unknown probability density

**function**f(x). Let the number of units in class Y j, j = 0,1, be denoted by nj < n. The

**ROSE**procedure for generating one new artiﬁcial example consists of the following steps: 1.Select y = Y j with probability pj. 2.Select (xi,yi) 2Tn, such that yi = y, with probability 1 n. Oct 21, 2019 · In fact,

**rose**petal extracts boast 30–50% greater antioxidant activity than

**rose**tea ( 4 ).

**Rose**tea is rich in polyphenols, such as gallic acid, anthocyanins, kaempferol, and quercetin. These ....