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str performance in python
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105
'%s' % 100000 is evaluated by the compiler and is equivalent to a constant at run-time.
>&g...
Why are elementwise additions much faster in separate loops than in a combined loop?
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10 Answers
10
Active
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Pandas: drop a level from a multi-level column index?
...pd.DataFrame([[1,2], [3,4]], columns=cols)
>>> df
a
b c
0 1 2
1 3 4
[2 rows x 2 columns]
>>> df.columns = df.columns.droplevel()
>>> df
b c
0 1 2
1 3 4
[2 rows x 2 columns]
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App Inventor 2 进制转换与位运算教程 - 十六进制、二进制、补码、字节操作...
...方案
十、实战案例：串口通信数据解析
10.1 场景描述
10.2 数据帧示例
10.3 App Inventor 2 解析代码
10.4 提取温度和湿度值
10.5 发送十六进制命令
十一、常用工具过程汇总
左侧补零
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How to generate random SHA1 hash to use as ID in node.js?
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Feb 23 '12 at 6:28
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How can I improve my paw detection?
...sically, you have 5 steps:
def find_paws(data, smooth_radius=5, threshold=0.0001):
data = sp.ndimage.uniform_filter(data, smooth_radius)
thresh = data > threshold
filled = sp.ndimage.morphology.binary_fill_holes(thresh)
coded_paws, num_paws = sp.ndimage.label(filled)
data_sli...
c# datatable insert column at position 0
...oes anyone know the best way to insert a column in a datatable at position 0?
3 Answers
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Algorithm for Determining Tic Tac Toe Game Over
...;
//check end conditions
//check col
for(int i = 0; i < n; i++){
if(board[x][i] != s)
break;
if(i == n-1){
//report win for s
}
}
//check row
for(int i = 0; i < n; i++){
...
Remove trailing zeros
...this, if the input IS a string? You can use one of these:
string.Format("{0:G29}", decimal.Parse("2.0044"))
decimal.Parse("2.0044").ToString("G29")
2.0m.ToString("G29")
This should work for all input.
Update Check out the Standard Numeric Formats I've had to explicitly set the precision specif...