original 1D array
[2294.4, 3481.2, 2716.7, 1672.2, 1135.3, 2103.5,
591.1, 648.5, 603.0,..., 11900.4, 10823.3, 10090.5,
3271.5, 4560.7, 3617.6,1815.7, 855.3, 915.4,583.3,
601.1, 565.6, 459.2, 349.3, 358.0, 351.1,340.2,
488.2,13.0, 14.1, 14.1, 16.2, 16.1, 27.1]

I change  1D array into 2D array: 
2D array  in 8 columns x 12 rows or
2D array in 12 columns x8 rows.

If column number is <10 I get expected output
format(each line is a row containing 8 columns):
[[2294.4, 3481.2, 2716.7, 1672.2, 1135.3, 2103.5,
591.1, 648.5],

...
[340.2, 488.2,13.0, 14.1, 14.1, 16.2, 16.1, 27.1]

]

If column number is >=10 let say 12, I get unwanted
output(each line is a column):

[[2294.4,
  3481.2,
  2716.7,
  1672.2,
  1135.3,
  2103.5,
  591.1,
  648.5,
  603.0,
  477.2,
  264.1,
  626.5],
?
 [459.2,
  349.3,
  358.0,
  351.1,
  340.2,
  488.2,
  13.0,
  14.1,
  14.1,
  16.2,
  16.1,
  27.1]]

Li


 
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