import random
#random data -------------------------------
mydata = [[10,1],[20,1],[30,1],[40,1],[50,1],[60,1],[70,1],[80,1],[90,1],[100,1]]
frek = [1,2,3,4,5,5,6,7,8,9]
nn = len(frek)
def acakfrek(_frek):
nn = int(len(_frek))
for i in range(nn):
m = random.randint(0, nn-1)
n = random.randint(0, nn-1)
temp = _frek[m]
_frek[m] = _frek[n]
_frek[n] = temp
return _frek
frek = acakfrek(frek)
#mengisi data khusus frekuensi
def isiDataf(_data, _frek):
_mydata = _data
for i in range(nn):
_mydata[i][1] = frek[i]
#mencari total frekuensi
def totf(arr):
totalf = 0
for i in range(len(arr)):
totalf += arr[i]
return totalf
#mean ------------------------------------
def meanf(arr,totf):
totnil = 0
for i in range(len(arr)):
totnil += arr[i][0]*arr[i][1]
_mean = totnil/totf
return _mean
#median ----------------------------------
def fkumulatif(arr):
ffk = []
for i in range(len(arr)):
tfk = 0
for j in range(i+1):
tfk+=arr[j]
ffk.append(tfk)
return ffk
def medianf(arrdata,totf):
a1 = 0
a2 = 0
cektotal = totf%2
if cektotal==0 :
#ada2
a1 = int(totf/2)
a2 = a1+1
else :
#ada1
a1 = int((totf+1)/2)
a2 = a1
med1=0
med2=0
i=0
while a1>fk[i] :
i+=1
med1 = i
i=0
while a2>fk[i] :
i+=1
med2 = i
_median = (1/2)*(arrdata[med1][0]+arrdata[med2][0])
return _median
#modus ------------------------------------
def modusf(arrdata):
_modus = arrdata[0][0]
fmodus = arrdata[0][1]
for i in range(nn):
if fmodus<arrdata[i][1]:
fmodus = arrdata[i][1]
_modus = arrdata[i][0]
return _modus
isiDataf(mydata, frek)
totalfrek = totf(frek)
fk = fkumulatif(frek)
mean = meanf(mydata,totalfrek)
median = medianf(mydata, totalfrek)
modus = modusf(mydata)
print("mydata = ",mydata)
print("totalfrek = ",totalfrek)
print("fkumulatif = ",fk)
print("Mean = ",mean)
print("Median = ",median)
print("Modus = ",modus)
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