# 1. 数据库中的位置表 start_time = time.time() condi = 'Dataset="CALIOP_Apro_05KM"' sql = Create_select_sql('position',condition=condi) pos_df = get_data_from_sql(sql, con, recols={'id': 'Position_id'})[['Position_id', 'Latitude', 'Longitude']] print('THE COST to get position table:',time.strftime("%H: %M: %S",time.gmtime(time.time() - start_time))) std_index_2d, std_index_3d = get_std_coors(desday, posrange) start_time = time.time() othercon = 'Profile_Time >= "{}" and Profile_Time <"{}" and high_level > 338'.format(desday,tom_dt.strftime('%Y-%m-%d')) # apro_df 是[latitude,longitude,time,high_level,features]的格式,但是高度还没有std apro_ori, apro_df, apro_xr = get_apro_data_sql(con, apro_config, othercon, pos_merge=pos_df, multi_index=multi_index + ['high_level']) print('THE COST to get raw data table:',time.strftime("%H: %M: %S",time.gmtime(time.time() - start_time)))
时间: 2024-04-18 08:28:10 浏览: 96
这段代码包含了一些数据处理的步骤。让我逐一解释一下:
首先,代码使用Create_select_sql函数创建了一个查询语句,查询名为'position'的表中的一些数据。查询条件是'Dataset="CALIOP_Apro_05KM"'。然后,使用get_data_from_sql函数执行查询并将结果保存到pos_df变量中。
接下来,代码使用get_std_coors函数获取了std_index_2d和std_index_3d两个变量的值。这个函数可能用于计算标准化的坐标。
然后,代码使用get_apro_data_sql函数从数据库中获取apro_ori、apro_df和apro_xr这三个变量的值。这个函数可能根据给定的条件和配置从数据库中检索数据,并进行一些处理。
最后,代码打印了获取位置表和原始数据表所花费的时间。
请告诉我,如果你对这段代码还有其他问题或需要进一步解释的地方。
相关问题
unpack condi args函数
"unpack condi args"这个说法似乎不太常见,如果是指Python中处理可变长度元组或关键字参数的情况,可能是你在提"**kwargs"或者"*(args)"这样的语法。在Python中:
1. **kwargs:这是一种特殊的参数形式,它允许你传递一个字典到函数中,其中键是参数名,值是对应的参数值。当你需要接收不确定数量的关键字参数时,可以使用这种方式。例如:
```python
def func(**kwargs):
for key, value in kwargs.items():
print(f"{key} = {value}")
```
2. *(args):这是用于接受位置参数列表的语法,它将所有传入的非关键字参数收集到一个元组中。例如:
```python
def func(*args):
for arg in args:
print(arg)
```
这两种情况都被称为“解包”(unpacking),它们让你能够更灵活地处理函数调用中的参数。
Condi: !RET&(!DFTRAMBYP&((TENA&! QNAPA&! CENA)|(!TENA&!TONAPA&!TCENA)) IDFTRAMBYP) &EMAA[2]&EMAA[1]&EMAA[O]&EMASA Sub_whenw: !RET&!DFTRAMBYP&TENA&!TONAPAS!CENA&EMAA[2]&EMAA[1]&EMAA[0]&EMASA !RET&!DFTRAMBYP&!TENA&!TONAPA&!TCENA&EMAA[2]&EMAA[1]&EMAA[0]&EMASA !RET&DFTRAMBYP&EMAA[2]&EMAA[1]&EMAA[0]&EMASA condi: !RET&TENA&((DFTRAMBYP&!SEA)I(!DFTRAMBYP&!CENA)) sub_whenw: !RET&TENA&DFTRAMBYP&!SEA !RET&TENA&!DFTRAMBYP&!CENA 根据上面的cond使用perl转化成下面的sub_whenw,给出通用的代码设,the condi can split to sub_whenw by '|' , this is kind of de-morgon law appliment
Based on the given `cond` and `sub_whenw`, to split the `cond` by '|' and convert it to `sub_whenw` using De Morgan's law, you can use the following Perl code:
```
# split the cond by '|'
my @conditions = split /\|/, $cond;
# convert each condition to sub_whenw using De Morgan's law
my @sub_whenw;
foreach my $condition (@conditions) {
$condition =~ s/(\w+)/!$1/g; # negate all variables
$condition =~ s/\(/\(/g; # add back the opening parentheses
$condition =~ s/\)/\)/g; # add back the closing parentheses
$condition =~ s/!/~/g; # replace '!' with '~' for bitwise negation
my $sub = eval($condition); # evaluate the condition as a bitwise expression
$sub =~ s/(\d+)/$1 ? 'T' : 'F'/eg; # convert the bitwise result to 'T' or 'F'
push @sub_whenw, $sub;
}
# print the resulting sub_whenw
print join("\n", @sub_whenw);
```
This code first splits the `cond` by '|' into an array of individual conditions. It then loops through each condition and applies De Morgan's law by negating all variables, replacing '!' with '~' for bitwise negation, and evaluating the condition as a bitwise expression using `eval()`. Finally, it converts the bitwise result to 'T' or 'F' and adds the resulting `sub_whenw` to an array. The code then prints the resulting `sub_whenw` array.
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