def get_times(denoms, n):
time_file = open("times.csv", "w")
for i in range(1, n + 1):
t_zero = time()
changeslow(denoms, i)
time_file.write("{},{}\n".format(time() - t_zero, i))
time_file.close()
def main():
if not (len(sys.argv) > 0):
print("You must supply a file for input.")
exit(1)
infilename = str(sys.argv[1])
outfilename = make_change_filename(infilename)
list_denoms, amounts = read_input(infilename)
with open(outfilename, "w") as outfile:
for index, denoms in enumerate(list_denoms):
coins = changeslow(denoms, amounts[index])
outfile.writelines("\n".join([
"Algorithm changedp:", " ".join([str(el) for el in denoms]),
" ".join([str(el) for el in coins]),
str(sum(coins)), "\n"
]))
def cointime(values,amount): intime = time.clock() coins = changeslow(values,amount) outime = time.clock() - intime return sum(coins),outime*1000
def experimentalAnalysis(nMax, stepSize, start):
print "Generating array..."
outfile = 'arr15.txt'
f = open(outfile, 'w+')
#All the different arrays and sizes, starting at 4, increasing to 15
#coinArray = [1, 5, 10, 25]
#coinArray = [1, 5, 10, 20, 30]
#coinArray = [1, 3, 6, 12, 18, 24]
#coinArray = [1, 2, 6, 12, 24, 48, 60]
#coinArray = [1, 4, 8, 12, 16, 20, 24, 28]
#coinArray = [1, 3, 6, 9, 12, 18, 21, 24, 27]
#coinArray = [1, 2, 5, 7, 10, 12, 15, 17, 20, 22]
#coinArray = [1, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22]
#coinArray = [1, 2, 4, 7, 10, 12, 14, 17, 20, 23, 25, 28]
#coinArray = [1, 3, 5, 8, 10, 13, 15, 18, 20, 23, 25, 28, 30]
#coinArray = [1, 2, 5, 8, 10, 13, 15, 18, 20, 22, 24, 26, 28, 30]
coinArray = [1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30]
#generate array of amounts
testArray = []
for n in range(start, nMax+1, stepSize):
testArray.append(n)
#Tests each algorithms
f.write("-----------Analysis for Algorithm ChangeSlow-----------\n")
f.write("CoinAmt\tResult\tTime\n")
for a in testArray: #test each amount stored in testArray
if a <= 60: #Limit for recursive algo - above run times
t0 = time() #are too high
result = changeslow(coinArray, a) #call algorithm
t1 = time()
f.write("{0} {1} {2} \n".format(a,result[1],(t1-t0))) #writes time & results
else:
break
if (t1 - t0 > 45): #Another limit to prevent long run times
break
print "Algo 1 done."
#Next to blocks same as previous without the limits
f.write("\n-----------Analysis for Algorithm ChangeGreedy-----------\n")
f.write("CoinAmt\tResult\tTime\n")
for a in testArray:
t0 = time()
result = changegreedy(coinArray, a)
t1 = time()
f.write("{0} {1} {2} \n".format(a,result[1],(t1-t0)))
print "Algo 2 done."
f.write("\n-----------Analysis for Algorithm ChangeDP-----------\n")
f.write("CoinAmt\tResult\tTime\n")
for a in testArray:
t0 = time()
result = changedp(coinArray, a)
t1 = time()
f.write("{0} {1} {2} \n".format(a,result[1],(t1-t0)))
f.close()