Python Float Division By Zero Error
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Zerodivisionerror: Division By Zero Python
up vote 0 down vote favorite please be kind with your answers I have been coding now for 10 days. I am having trouble with performing loops in my code, but I am fairly certain this is because I am getting a traceback. I parse an xml file obtained from a url, using the following code: pattern4 = re.compile('title=\'Naps posted: (.*) Winners:') pattern5 = re.compile('Winners: (.*)\'>
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Zerodivisionerror Python
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programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Python : ZeroDivisionError: float division by zero up vote 0 down vote favorite I have got these code, But it gives http://stackoverflow.com/questions/16930638/how-to-avoid-division-by-zero-error-when-performing-calculations-on-parsed-xml a zero division error. I am not able to figure out what is wrong. I need your help. Thank you. :) from math import sqrt def inisialisasi(): filename = raw_input('File will be read? ') return filename def readdatafile(filename): datafile = open('kalibration.txt','r') datax = []; datay = []; datae = []; i = 0 for row in datafile: i +=1 data = row.split() x = float(data[0]) datax.append(x) y = float(data[1]) datay.append(y) e = float(data[2]) datae.append(e) http://stackoverflow.com/questions/27414255/python-zerodivisionerror-float-division-by-zero print 'x = %5.2f y = %5.2f e = %5.2f' % (x, y, e) datafile.close() n = i print 'Jumlah data = ', n return n, datax, datay, datae def regresilinear(x, y, e): sum1=0.0; sum2=0.0; sum3=0.0; sum4=0.0; sum5=0.0 for i in range(0, n): sum1=sum1+(x[i]**2/e[i]**2) sum2=sum2+(y[i]/e[i]**2) sum3=sum3+(x[i]/e[i]**2) sum4=sum4+(x[i]*y[i])/e[i]**2 sum5=sum5+1/e[i]**2 det = (sum5*sum1)-sum3**2 #parameter a dan b a = ((sum1*sum2)-(sum3*sum4))/det b = ((sum5*sum4)-(sum3)*(sum2))/det #ralat sigmaa2 = sum1/det sigmab2 = sum5/det sigmaa = sqrt(sigmaa2) sigmab = sqrt(sigmab2) return a, b, sigmaa, sigmab filename = inisialisasi() n, datax, datay, datae = readdatafile(filename) a, b, sigmaa, sigmab = regresilinear(datax,datay, datae) print 'a= %8.6f b= %8.6f sigmaa= %8.6f sigmab= %8.6f' % (a, b, sigmaa, sigmab) error : Traceback (most recent call last): File "coba6.py", line 55, in a, b, sigmaa, sigmab = regresilinear(datax, datay, datae) File "coba6.py", line 42, in regresilinear a = ((sum1*sum2)-(sum3*sum4))/det ZeroDivisionError: float division by zero python error-handling share|improve this question edited Dec 11 '14 at 2:46 dazedconfused 8602920 asked Dec 11 '14 at 2:12 rosalina djatmika 412 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote Somehow, det is set equal to 0. Since you never explicitly prevent that from happening, a single input line like... 1.0
sys.stdout=open('f1.txt','w') from collections import Counter from glob import glob def removegarbage(text): text=re.sub(r'\W+',' ',text) text=text.lower() return text folderpath='d:/induvidual-articles' counter=Counter() filepaths = glob(os.path.join(folderpath,'*.txt')) num_files = len(filepaths) with https://www.daniweb.com/programming/software-development/threads/456844/divide-by-zero-error-in-python open('topics.txt','r') as filehandle: lines = filehandle.read() words = removegarbage(lines).split() counter.update(words) for word, count in counter.most_common(): probability=count//num_files print('{} {} {}'.format(word,count,probability)) i am getting a zero division error:float division by zero for the line probability=count//num_files how do i rectify it? i need my output to be of the form: word, count ,probability Plz help! python python3 farhaana.ahmed.58 2 posts since Jun division by 2013 Newbie Member 2Contributors 1Reply 16Views 3 YearsDiscussion Span 3 Years Ago Last Post by slate 0 slate 228 3 Years Ago You get zerodivision error if num_files == 0. It is impossible to find any word in nonexistent files, so the probability should be zero. So you should write (and see next point)probability=count/num_files if numfiles else 0 // is division by zero integer division in python. you should: python3: probability=count/num_files python2 or 3: probability=float(count)/num_files see This question has already been answered. Start a new discussion instead. Message Insert Code Snippet Alt+I Code Inline Code Link H1 H2 Preview Submit your Reply Alt+S Ask a Different Software Development Question Related Articles Java: Void does not display the input value 1 reply Java Hi when I tried to insert my output the void displayed null or 0 can you tell me what's wrong with my rpogram? tnx … Library management system 6 replies hey guys i am trying to create a library management system which is supposed to be used to store/keep infp for the library and the … Empty path name is not legal 1 reply Try Dim cn As New SqlConnection("Data Source=MSR\LOCAL;Initial Catalog=Eventena;Integrated Security=True") cn.Open() Using cmd As New SqlClient.SqlCommand("INSERT into BirthdayRegistration where Name='" & TextBox4.Text & "',LastName='" & TextBox2.Text … Alternate Color In MsFlexGrid ; coding 1 reply Hi, I want to create a Alternate Coloring in MsFlexGrid that using the Visual Basic Programming. Here I attach a