I have a list
list = [21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 39, 44, 42, 40, 43, 47, 45, 57, 52, 75, 73, 86, 78, 70, 77, 87, 79, 113, 96, 147, 141, 170, 150, 130, 145, 167, 147, 225, 184]
and I am trying to get it to be returned in 4 columns horizontally
21 22 23 24
25 26 27 28
29 30 39 39
44 42 40 43
...
as well as vertically
21 39 75 147
22 39 73 141
23 44 86 170
24 42 78 150
25 40 70 130
26 43 77 145
27 47 87 167
28 45 79 147
29 57 113 225
30 52 96 184
This is my attempt at solving this horizontally:
# prints array in columns
def printArray(array):
row = 10
col = 4
for i in range(row):
for j in range(col):
print(array[i][j], '\t', end="")
But it does not work.
I've also tried searching how to transpose the list some how but only found how to transpose a list of lists.
Any help would be appreciated thank you.
CodePudding user response：
For the horizontal you can use np.reshape:
np.array(list).reshape(-1, 4)
and for the vertical you can transpose:
np.array(list).reshape(4, -1).T
CodePudding user response：
You can do with range
Vertical
col = 4
vertical = [lst[i:i col] for i in range(0,len(lst),col)]
for item in vertical:
print(item)
Output:
[21, 22, 23, 24]
[25, 26, 27, 28]
[29, 30, 39, 39]
[44, 42, 40, 43]
[47, 45, 57, 52]
[75, 73, 86, 78]
[70, 77, 87, 79]
[113, 96, 147, 141]
[170, 150, 130, 145]
[167, 147, 225, 184]
Horizontal
row = 10
for s in range(row):
print([lst[s:][i] for i in range(0,len(lst),row)])
Output:
[21, 39, 75, 147]
[22, 39, 73, 141]
[23, 44, 86, 170]
[24, 42, 78, 150]
[25, 40, 70, 130]
[26, 43, 77, 145]
[27, 47, 87, 167]
[28, 45, 79, 147]
[29, 57, 113, 225]
[30, 52, 96, 184]
Together into a function.
def printarray(row, col):
print('----Vertical print----')
vertical = [lst[i:i col] for i in range(0,len(lst),col)]
for item in vertical:
print(item)
print('\n')
print('----Horizontal print----')
for s in range(row):
print([lst[s:][i] for i in range(0,len(lst),row)])
CodePudding user response：
Try doing it this way:
def printArray(array):
row = 10
col = 4
for i in range(len(array)-col):
for j in range(col):
print(array[i j], '\t', end="")
print()
lst = [21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 39, 44, 42, 40, 43, 47, 45, 57, 52, 75, 73, 86, 78, 70, 77, 87, 79, 113, 96, 147, 141, 170, 150, 130, 145, 167, 147, 225, 184]
printArray(lst)
CodePudding user response：
How about this ?
list = [21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 39, 44, 42, 40, 43, 47, 45, 57, 52, 75, 73, 86, 78, 70, 77, 87, 79, 113, 96, 147, 141, 170, 150, 130, 145, 167, 147, 225, 184]
x = np.array(list) # Change list to 1D numpy matrix
x = x.reshape(int(len(x)/4), 4) # Reshape the matrix according to our requirement
CodePudding user response：
If you use numpy library, it is very easy to reshape the list.
For making vertically reshaped array, you just make the array as 4 rows and 10 columns first, then transpose the array using numpy function.
import numpy as np
target_list = [21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 39, 44, 42, 40, 43, 47, 45, 57, 52, 75, 73, 86, 78, 70, 77, 87, 79, 113, 96, 147, 141, 170, 150, 130, 145, 167, 147, 225, 184]
# for horizontally
h_array = np.array(target_list).reshape((10, 4))
print(h_array)
# for vertically
v_array = np.array(target_list).reshape((4, 10))
print(v_array.T)
If you want to make the array as list of list, then you can you tolist function.
h_list = h_array.tolist()
print(h_list)
v_list = v_array.T.tolist()
print(v_list)
CodePudding user response：
Here are 2 functions that print both directions.
Horizontal output:
21 22 23 24
25 26 27 28
29 30 39 39
44 42 40 43
47 45 57 52
75 73 86 78
70 77 87 79
113 96 147 141
170 150 130 145
167 147 225 184
Vertical output:
21 39 75 147
22 39 73 141
23 44 86 170
24 42 78 150
25 40 70 130
26 43 77 145
27 47 87 167
28 45 79 147
29 57 113 225
30 52 96 184
Code:
data = [21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 39, 44, 42, 40, 43, 47, 45, 57, 52, 75, 73, 86, 78, 70, 77, 87, 79, 113, 96, 147, 141, 170, 150, 130, 145, 167, 147, 225, 184]
def print_horizontaly(lst: list, columns, spacing):
for i, item in enumerate(lst):
if i % columns == 0:
print("")
print(item, end=''.join(' ' for j in range(spacing - len(str(item)))))
def print_verticaly(lst: list, columns, spacing):
columns_ = []
for i in range(len(lst)//columns):
for item in lst[i::len(lst)//columns]:
print(item, end=''.join(' ' for j in range(spacing - len(str(item)))))
print("")
print_horizontaly(data, 4, 8)
print_verticaly(data, 4, 8)