The Python list and tuple objects are different from the NumPy array object. When you need to get the shape of a list or a tuple, you need to use thelen()function to get the rows and columns defined in the objec
In this tutorial, you'll learn how to remove or replace a string or substring. You'll go from the basic string method .replace() all the way up to a multi-layer regex pattern using the sub() function from Python's re module.
Hold down the Ctrl key and use your mouse to select the three columns representing the weeks from this window. Click on Transform in the Power Query Editor. Select Unpivot Columns. This action will transform the columns into rows, creating a list-like structure. After making the necessary tran...
df = pd.DataFrame(raw_data, columns = ['bond_name', 'risk_score']) print(df) Step 3 - Creating a function to assign values in column First, we will create an empty list named rating, which we will append and assign values as per the condition. rating = [] We will create a loop...
Learn how to remove characters from a string in Python using replace(), regex, list comprehensions, and more.
Learn how to add elements to an array in Python using append(), extend(), insert(), and NumPy functions. Compare performance and avoid common errors.
Python allows us to perform efficient string-formatting using theformat()function. It gives us the freedom to make sure we get the output in our desired format. For showing data in a tabular format, we specify the spaces efficiently between the columns and print the data from the list in ...
Python program to query if a list-type column contains something # Importing pandas packageimportpandasaspd# Creating two dictionariesd1={'Vehicles':[ ['Scorpion','XUV','Bolero','Thar'], ['Altroz','Nexon','Thar','Harrier'], ['Creta','i20','Verna','Aalcasar']]}# Creating DataFramedf...
explode('Age') # Display modified DataFrame print("Modified DataFrame:\n",df,"\n") OutputThe output of the above program is:Python Pandas Programs »Python Pandas DataFrame: Apply function to all columns Python - How to query if a list-type column contains something?
The following code example shows how we can get the shape of a multi-dimensional list using NumPy. importnumpyasnp my_array=np.array([[1,2,3],[4,5,6]])num_rows,num_cols=my_array.shapeprint(f"Number of rows: {num_rows}, Number of columns: {num_cols}") ...