No group information found R语言

关于“no group information found”错误的产生，通常是因为在使用R语言进行数据分析时，出现了数据框中的变量被删减或者合并后，没有重新指定分组变量。这样会导致分组变量丢失，从而产生“no group information found”错误。

解决这个问题的方法是重新检查数据分析的过程，确保在进行数据删减或合并时，重新指定分组变量。另外，也可以使用group_by()函数来重新创建分组变量，避免出现该错误。

相关问题

请帮我把该中“”Running Information = Now Tick:[95041633], Show Power Save Cell Info: local cell id:[31]: plmn:[5566560], eutranCellId:[18960927] PrbUsage: downlinkPrbUsage[63] uplinkPrbUsage[6]“的63使用python提取出来”

可以使用正则表达式来提取这个字符串中的数字，具体代码如下：

import re

s = "Running Information = Now Tick:[95041633], Show Power Save Cell Info: local cell id:[31]: plmn:[5566560], eutranCellId:[18960927] PrbUsage: downlinkPrbUsage[63] uplinkPrbUsage[6]"

pattern = r"downlinkPrbUsage\[(\d+)\]"

match = re.search(pattern, s)

if match:
    prb_usage = match.group(1)
    print(prb_usage)
else:
    print("No match found.")

运行结果为：

63

这里使用了正则表达式模块 `re` 中的 `search` 函数，匹配了字符串中 `downlinkPrbUsage[` 和 `]` 之间的数字，并将其提取出来。

ERROR - file: storage_func.c, line: 1428, getgrnam fail, errno: 2, error info: No such file or directory

This error message indicates that a function called getgrnam failed while attempting to retrieve information about a group from the system's group database. The error code (errno) of 2 indicates that the cause of the failure was that the specified group name could not be found in the database, most likely because the file or directory containing the database was missing or inaccessible. This error can occur in situations where the system's configuration or file system has been modified or corrupted.