sorry, i know, there is a bunch of answers about that but my noobness doesnt let me understand the answer to adequate to my problem…
i get the TypeError: ‘int’ object is not callable on the line 27 (var = …)
the file data1_.txt is just 5 lines with a integer number in each line.
can someone help me to understand why?
line_number = 0; countline = 0; linesum = 0; avg = 0; var = 0; linelist = ; f = open("data1_.txt", "r") while True: #how to count lines line = f.readline() if line == "" : break line = line.rstrip("\n\r") line_number += 1 if line != "/n": countline += 1 #how to list the numbers x = line.strip() linelist.append(x) #how to sum the numbers of the list linesum += int(x)*1.0 avg = linesum/countline; #how to calculate variant of numbers var = sum((y-avg) **2 for y in linelist) / countline f.close() print("number of lines:", countline) print("the numbers:", linelist) print("sum of numbers:", linesum) print("avarage:", avg) print("variant:", var)
I found your problem. in your sum statement you are trying to compare the string value of y (which is what readlines gives) when it should be a float value.
#how to calculate variant of numbers var = sum((float(y)-avg) **2 for y in linelist) / countline