At matrix division, R

At matrix division

#R version 3.4.4 
  
print("Hello, world!")
print("Praveen k Yadav 2277")
print("PRACTICAL 1:- R as a calculator")
help(log)
log(10)
log(Inf,base=2)
log(1,base=exp(1))
help(sqrt)
sqrt(125)
sqrt(25)+sqrt(225)+sqrt(3^2+4^2)
sin(pi/2)
(sin(pi/2))^2+(cos(pi/3))^2
a=2^3
b=2*a
a+b
a=4
b=2*a^2+3*a-5
b
c=2*a+3*b^2-2*b
c
ls()
rm(a,b,c)
ls()
a=c(2,3,4,5,12)
calc1=1+5
calc1
class(calc1)
calc2=1.5+2.3
calc2
class(calc2)
numbers1=c(1,2,5)
numbers1
class(numbers1)
numbers2=1:20
numbers2
class(numbers2)
Char1="Hello world"
Char1
class(Char1)
Char2="VECTOR TYPE"
Char2
vector1=vector (mode='logical',3)
vector1
vector2=vector(mode='logical',5)
vector2
vector2[3]=TRUE
vector2 [4]=TRUE
vector2 [5]=TRUE
vector2
class(vector2)
Char3="MATRIX DATA TYPES"
Char3
matrix1=matrix(1:9,nrow=3)
matrix1
matrix2=matrix(1:10,nrow=4)
matrix2
matrix3=matrix(1:8,nrow=4)
matrix3
matrix4=matrix(1:13,nrow=4)
matrix4
matrix5=matrix(1:13,ncol=3)
matrix5
matrix6=matrix(c(2,5,7,1,4,6,9,0,3,1),ncol=3)
matrix6
matrix7=matrix(c(T,T,F,T,F,F,9,0,3,1),ncol=3)
matrix7
matrix9=matrix(1:1000,nrow=20)
matrix9
matrix9[6, ]
matrix9[ ,40]
matrix9[6,4]
class(matrix9)
Char3="ARRAY DATA TYPE"
Char3
array1=array(1:16,dim=c(4,2,2))
array1
array2=array(1:1000,dim=c(10,10,10))
array2
class(array2)
Char4="DATA FRAME DATA TYPE"
Char4
myvalues1=c(1,2,3,4,5)
myvalues2=c(T,F,T,T,T)
names=c("row1","row2","row3","row4","row5")
dataframe1=data.frame(myvalues1, myvalues2,row.names=names)
dataframe1
names(dataframe1)[1]="HOUSE"
dataframe1
Char5="VECTORS"
Char5
vector1=1:9
vector1
vector2=9:1
vector2
vector3=1.2:9
vector3
Char6="VECTORS IN RANDOM FORM"
Char6
vector4=c(1,5,8,-1)
vector4
vector5=c(1,5,8,-1.2)
vector5
Char7="OPERATIONS ON VECTOR:- 1:- ADDITION"
Char7
vector6=vector5+4
vector6
vector7=vector4+vector5
vector7
Char8="vector subtraction"
Char8
vector8=vector5-4
vector8
vector9=vector4-vector5
vector9
v1=1:10
v2=1:30
v3=v1+v2
v1
v2
v3
v4=v1*3
v4
v5=v1*v2
v5
v9=1:10
v10=11:15
v11=v9*v10
v9
v10
v11
Char9="vector division"
Char9
v12=v11/2
v12
v13=v11/v12
v13
Char10="MATRICES AND THEIR OPERATIONS"
Char10
A=matrix(c(1,3,5,6,9,6),nrow=3)
A
B=matrix(c(1,3,5,6,9,6),ncol=3)
B
C=matrix(c(1,3,5,6,9,6,7),ncol=3)
C
D=matrix(1:8,ncol=3)
D
E=matrix(v12,nrow=3)
E
Char11="1:- ADDITION"
Char11
F=matrix(1:12,nrow=3)
F
G=E+F
G
H=G+5
H
Char12="MULTIPLICATION"
Char12
I=H*2
I
A
B
J=A%*%A
J


run \| edit \| history \| help	0