Python直方图

我试图在python中创建一个直方图，作为我的

python

类的一部分

应该是这样的：

# fake data
sumValues = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
...
# calculate how long is the list and adjust the padding for 'Element'
padding = max(len(sumValues), len('Element'))
# now the padding for 'Value'
padding1 = max(len(str(max(sumValues))), len('Value')) 

print("\nCreating a histogram from values: ")
print("%s %10s %10s" %("Element", "Value", "Histogram"))
# use enumerate to loop your list and giving the index started from 1
for i,n in enumerate(sumValues, start=1):
    print '{0} {1}     {2}'.format( # print each line with its elements
              str(i).ljust(padding), # print with space using str.ljust
              str(i).rjust(padding1), # print with space using str.rjust
              '*'*n) # '*' * n = '*' multiply by 'n' times 

Creating a histogram from values: 
Element      Value  Histogram
1              1     *
2              2     **
3              3     ***
4              4     ****
5              5     *****
6              6     ******
7              7     *******
8              8     ********
9              9     *********
10            10     **********

然而，我无法计算出直方图。这是我目前的代码：

sumValues = [] 

print("Enter 10 integers")

for i in range( 10 ):
    newValue = int( input("Enter integer %d: " % (i + 1) ))
    sumValues.append(newValue)

print("\nCreating a histogram from values: ")
print("%s %10s %10s" %("Element", "Value", "Histogram"))

如何创建实际直方图？

一些提示： 新样式的Python格式允许：

In [1]: stars = '*' * 4    # '****'
In [2]: '{:<10s}'.format(stars)
Out[3]: '****      '

[1]中的

stars='*'*4#'**'
在[2]：“{:就像这样：

# fake data
sumValues = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
...
# calculate how long is the list and adjust the padding for 'Element'
padding = max(len(sumValues), len('Element'))
# now the padding for 'Value'
padding1 = max(len(str(max(sumValues))), len('Value')) 

print("\nCreating a histogram from values: ")
print("%s %10s %10s" %("Element", "Value", "Histogram"))
# use enumerate to loop your list and giving the index started from 1
for i,n in enumerate(sumValues, start=1):
    print '{0} {1}     {2}'.format( # print each line with its elements
              str(i).ljust(padding), # print with space using str.ljust
              str(i).rjust(padding1), # print with space using str.rjust
              '*'*n) # '*' * n = '*' multiply by 'n' times 

Creating a histogram from values: 
Element      Value  Histogram
1              1     *
2              2     **
3              3     ***
4              4     ****
5              5     *****
6              6     ******
7              7     *******
8              8     ********
9              9     *********
10            10     **********

正确地说，您显示的不是“直方图”（例如，请参阅）。但是，这不会改变有关如何打印所显示内容的答案。