rename

问题 I've got a data frame with multiple rows for each participant. There is an error in some of their ids (for example, some are double). I wanted to assign them a new one like this dat[dat$participant == "36" & dat$date == "2020-06-07_12h33.46.880"] <- "101" I get the error message "duplicate subscripts for columns". Whats wrong with my command? I also tried dat$participant[dat$date== "2020-06-07_12h33.46.880"] <- "101" with no error but also no participant with these value appearing 回答1: The

问题 I am new to SQL, I was trying to change column name in my database's table. I am using 'xampp' with 'maria DB' (OS - Ubuntu 18.04) I tried all of the followings: ALTER TABLE subject RENAME COLUMN course_number TO course_id; ALTER TABLE subject CHANGE course_number course_id; ALTER TABLE subject CHANGE 'course_number' 'course_id'; ALTER TABLE subject CHANGE COLUMN 'course_number' course_id varchar(255); ALTER TABLE subject CHANGE 'course_number' 'course_id' varchar(255); But the only output I

问题 I have a model with CharField named oldName . I want to rename the field to newName . When I run python manage.py makemigrations , I get a confirmation request "Did you rename model.oldName to model.newName (a CharField)? [y/N]" However, I want to run the whole thing inside a docker container and there is no provision to provide the user input. Is there a way to force the migration without need for user input? PS: I tried --noinput option with makemigrations. In this case migrations are not

问题 I have a model with CharField named oldName . I want to rename the field to newName . When I run python manage.py makemigrations , I get a confirmation request "Did you rename model.oldName to model.newName (a CharField)? [y/N]" However, I want to run the whole thing inside a docker container and there is no provision to provide the user input. Is there a way to force the migration without need for user input? PS: I tried --noinput option with makemigrations. In this case migrations are not

问题 I have a model with CharField named oldName . I want to rename the field to newName . When I run python manage.py makemigrations , I get a confirmation request "Did you rename model.oldName to model.newName (a CharField)? [y/N]" However, I want to run the whole thing inside a docker container and there is no provision to provide the user input. Is there a way to force the migration without need for user input? PS: I tried --noinput option with makemigrations. In this case migrations are not

问题 I have a model with CharField named oldName . I want to rename the field to newName . When I run python manage.py makemigrations , I get a confirmation request "Did you rename model.oldName to model.newName (a CharField)? [y/N]" However, I want to run the whole thing inside a docker container and there is no provision to provide the user input. Is there a way to force the migration without need for user input? PS: I tried --noinput option with makemigrations. In this case migrations are not

问题 I have a model with CharField named oldName . I want to rename the field to newName . When I run python manage.py makemigrations , I get a confirmation request "Did you rename model.oldName to model.newName (a CharField)? [y/N]" However, I want to run the whole thing inside a docker container and there is no provision to provide the user input. Is there a way to force the migration without need for user input? PS: I tried --noinput option with makemigrations. In this case migrations are not

问题 Sorry for the seemingly confusing title. I was reading Excel data using Pandas. However, the original Excel data has multiple rows for header and some of the cells are merged. It sort of looks like this: It shows in my Jupyter Notebook like this My plan is to just the 2nd level as my column names and drop the level0. But the original data has about 15 columns that shows as "Unnamed...", I wonder if I can rename those before dropping the level0 column names. The desirable output looks like: I

问题 I want to rename the columns from one dataframe into the columns of another, meanwhile creating a completely new dataframe. I am not really sure how to approach this and which is why the consultation. I want to take the name of one element in the string from one column and reuse it to another. This can be either in R or python, doesn't matter too much. The rest of the string values can be fixed values. Such as: Hm106 _120.region001 1813 PKSI_GCF 1813 Streptomyces_sp_ Hm106 MBT13 _26.region001

问题 I want to rename the columns from one dataframe into the columns of another, meanwhile creating a completely new dataframe. I am not really sure how to approach this and which is why the consultation. I want to take the name of one element in the string from one column and reuse it to another. This can be either in R or python, doesn't matter too much. The rest of the string values can be fixed values. Such as: Hm106 _120.region001 1813 PKSI_GCF 1813 Streptomyces_sp_ Hm106 MBT13 _26.region001