Access and preserve list names in lapply function
2012年2月28日 · Building on joran's answer, and precising it: The sapply(USE.NAMES=T) wrapper will indeed set as names of the final result the values of the vector you are iterating over (and not its names attribute like lapply), but only if these are characters.
Get a list from Pandas DataFrame column headers
Create a list of keys/columns - object method to_list() and the Pythonic way: my_dataframe.keys().to_list() list(my_dataframe.keys()) Basic iteration on a DataFrame returns column labels: [column for column in my_dataframe] Do not convert a DataFrame into a list, just to get the column labels.
Naming list elements in R - Stack Overflow
2016年7月28日 · However, the reason that your second approach (names(filList[i]) <- ) does not work is NOT that "you create a unbound temporary variable whose names you change but which never matters since its just a temporary variable" but rather that the default sub-setting assignment operator [<-does not transfer names (which makes sense since names are ...
Command to list all files in a folder as well as sub-folders in windows
To print specific file present in the folders/sub-folders for eg : If you want to list just the csv files then : dir /b/s/A-D/o:gn *.csv >list.txt If you want to also include .xlsx files then the code is : dir /b/s/A-D/o:gn *.csv *.xlsx >list.txt You can mention more file types in the same way. P.S Got to know this one from chatgpt :P
Naming list items via loop in R - Stack Overflow
I want to take a list, create a String vector of the names of the list items, filling in blanks with a generic name and then set the names vector as the names of the list. My code works fine for list who dont have items with names in it. It however does nothing, when there are items with a …
ip - List ALL devices on local network? - Stack Overflow
2015年6月4日 · To generate a list with a Windows CMD .bat file to ping devices on the network, do the following. Create a .bat file with a loop that uses the ping command to send a ping to each of the possible usable addresses on your network. I use the -a and -n 1 options on the ping command to send a single ping, -n 1, with a request to give me the hostname.
Is there a standard way to list names of Python modules in a …
One could then list all the files in that directory, filter out the uniquely-named py/pyc/pyo files, strip the extensions, and return that list. But this seems like a fair amount of work for something the module import mechanism is already doing internally.
How to get a list of member names from Enum? - Stack Overflow
2010年8月9日 · In the general case, I see little harm in displaying enum value names to the user, especially names conforming to the C# naming standards (CamelCase). The integer values corresponding to those names are probably not a good idea to display, and full information based on the enum value would probably be preferable, but I don't see harm in it.
git - How to list only the names of files that changed between two ...
2022年8月26日 · which is handy for use in Jenkins where you are provided with a list of changeset SHA hash values, and want to iterate over them to see which files have been changed. This is similar to a couple of the previous answers, but using tformat: rather than format: removes the separator space between commits.
Use powershell to get device names and their ipaddress on a …
2017年1月21日 · This question arises from trying to manage my home wifi network. I've been toying with commands such as get-netipaddress, ipconfig and nslookup.exe. The following command has kind of led me somewh...