I have two dataframes each containing one or more time series from the same time frame but sampled at different timestamps. I’d like to merge them into a single one resampled and interpolated with the index of the first. Here’s a sample of the first dataframe: And the second one: In this case the …
Tag: pandas
How to get a user input for a column in pandas by creating a GUI using tkinter?
I have a dataframe with 3 columns: Date, attribute_one, attribute_two. The date column is blank but the other two columns are filled with some data. how can I use tkinter package to build a GUI which would prompt the user to enter date which will then be eventually stored in the dataframe. Answer Using the tk…
Creating pandas series from array and list
I’m trying to map array data to a list of column names but keep getting this error message This is a sample of the data in a and the list of rows in cols: The endgoal is to create a series showing the coefficients of each feature (represented by the cols list) Answer You array is having an array inside
Mute DEBUG alerts from ‘import pandas’ statement
I’m importing pandas and it continues to throw 7 DEBUG messages. It’s happening in JupyterLab and pythonanywhere. It does not appear when I comment out the pandas import I tried to mute them using: warnings.filterwarnings(“ignore”), to no avail. Tried “from pandas import pandas a…
How to create a pandas dataframe where columns are filled with random strings?
I want to create a Pandas dataframe with 2 columns and x number rows that contain random strings. I have found code to generate a pandas dataframe with random ints and a random stringer generator. I still don’t see a clear path to create a pandas data frame with random strings. Code for random int dataf…
Pandas: TypeError: ‘>’ not supported between instances of ‘int’ and ‘str’ when selecting on date column
I have a Pandas DataFrame with a column with TimeStamps. I can select date ranges from this column. But after I make change to other columns in the DataFrame, I can no longer and I get the error “TypeError: ‘>’ not supported between instances of ‘int’ and ‘str’”. T…
How to replace values in pandas data frame by dictionary?
I have a problem with pandas and replacing values. I have a table with animals and their alleles looks that: And I need to change values of Top1 and Top2 by a specific Key for each row. For example: if values in same rows will be = C & A, I will replace it to A & B, if row
Create pandas series using a dictionary as mapper
Is there a built-in function to create a pandas.Series column using a dictionary as mapper and index levels in the data frame ? The idea is to create a new column based on values in index levels and a dictionary. For instance: Let’s suppose the following data frame, where id, name and code and different…
How to cycle the NaNs in pandas dataframe rows?
I have a dataframe like this: How to put all the NAs in the left instead of right? Required: Answer There are mixed numeric with strings rows, so solution is use sorted with key parameter in DataFrame.apply: If all values are numeric, faster solution is with justify:
I want to compare the values in pandas
I have two dataframes. First one: second one: this is the first one: this is the second one: I want to do two things: if the second one’s user is not in the first one, then print out. like: www is not in the list if the user is in the list, but group is not equal then print out: