How do you concatenate a list in Python?

How do you concatenate a list in Python?

One of the easiest ways are by using the + operator.

  1. Join two list: list1 = ["a", "b" , "c"] list2 = [1, 2, 3] list3 = list1 + list2. ...
  2. Append list2 into list1: list1 = ["a", "b" , "c"] list2 = [1, 2, 3] for x in list2: ...
  3. Use the extend() method to add list2 at the end of list1: list1 = ["a", "b" , "c"] list2 = [1, 2, 3]

How do you join 3 lists in Python?

Join / Merge two lists in python using list. But what if we want to extend any existing list? We can extend any existing list by concatenating the contents of any other lists to it using the extend() function of list i.e. # Makes list1 longer by appending the elements of list2 at the end.

How do you sort and concatenate a list in Python?

Python Program to Merge Two Lists and Sort it

  1. Take in the number of elements for the first list and store it in a variable.
  2. Take in the elements of the list one by one.
  3. Similarly, take in the elements for the second list also.
  4. Merge both the lists using the '+' operator and then sort the list.
  5. Display the elements in the sorted list.
  6. Exit.

How do you create a list in Python?

Lists in Python can be created by just placing the sequence inside the square brackets[]. Unlike Sets, list doesn't need a built-in function for creation of list. Note – Unlike Sets, list may contain mutable elements.

How do I compare two Excel lists for differences?

Compare Two Columns and Highlight Matches

  1. Select the entire data set.
  2. Click the Home tab.
  3. In the Styles group, click on the 'Conditional Formatting' option.
  4. Hover the cursor on the Highlight Cell Rules option.
  5. Click on Duplicate Values.
  6. In the Duplicate Values dialog box, make sure 'Duplicate' is selected.

What is the list in Python?

A list is a data structure in Python that is a mutable, or changeable, ordered sequence of elements. Each element or value that is inside of a list is called an item. ... They enable you to keep data together that belongs together, condense your code, and perform the same methods and operations on multiple values at once.

How do I compare two lists of data in Excel?

A Ridiculously easy and fun way to compare 2 lists

  1. Select cells in both lists (select first list, then hold CTRL key and then select the second)
  2. Go to Conditional Formatting > Highlight Cells Rules > Duplicate Values.
  3. Press ok.
  4. There is nothing do here. Go out and play!

How do I create a comparison chart in Excel?

To insert a chart:

  1. Select the cells you want to chart, including the column titles and row labels. These cells will be the source data for the chart. ...
  2. From the Insert tab, click the desired Chart command. ...
  3. Choose the desired chart type from the drop-down menu. ...
  4. The selected chart will be inserted in the worksheet.

How do I get a list of names in Excel?

You can find a named range by using the Go To feature—which navigates to any named range throughout the entire workbook.

  1. You can find a named range by going to the Home tab, clicking Find & Select, and then Go To. Or, press Ctrl+G on your keyboard.
  2. In the Go to box, double-click the named range you want to find.

How can I create a formula in Excel?

Create a simple formula in Excel

  1. On the worksheet, click the cell in which you want to enter the formula.
  2. Type the = (equal sign) followed by the constants and operators (up to 8192 characters) that you want to use in the calculation. For our example, type =1+1. Notes: ...
  3. Press Enter (Windows) or Return (Mac).

What is difference between Vlookup and Hlookup?

HLookup searches for a value in the top row of a table and then returns a value in the same column. The VLookup function displays the searched value in the same row but in the next column.

Why is it called Vlookup?

VLOOKUP stands for 'Vertical Lookup'. It is a function that makes Excel search for a certain value in a column (the so called 'table array'), in order to return a value from a different column in the same row.

Why is Hlookup used?

Use HLOOKUP when your comparison values are located in a row across the top of a table of data, and you want to look down a specified number of rows. Use VLOOKUP when your comparison values are located in a column to the left of the data you want to find. The H in HLOOKUP stands for "Horizontal."

Can we use Vlookup and Hlookup together?

VLOOKUP and HLOOKUP are two of the most popular formulas in Excel and using them together is one of the first formula combinations that people learn.

Why is Vlookup useful?

VLOOKUP is a function to lookup up and retrieve data in a table. ... (For horizontally structured data, see HLOOKUP). If you have a well structured table, with information arranged vertically, and a column on the left which you can use to match a row, you can probably use VLOOKUP.

What is difference between Vlookup and pivot table?

A pivot table is a table of statistics that help to summarize and reorganize the data of a wide/broad table. ... On the other hand, VLOOKUP is a function which used in excel when you are required to find things/value in a data or range by row. In this article, we look at how to use VLookup within the Pivot Table.

How do you do a dynamic Vlookup?

Inside the VLOOKUP function, the column index argument is normally hard-coded as a static number. However, you can also create a dynamic column index by using the MATCH function to locate the right column. This technique allows you to create a dynamic two-way lookup, matching on both rows and columns.

What is purpose of pivot table?

A pivot table is a summary of your data, packaged in a chart that lets you report on and explore trends based on your information. Pivot tables are particularly useful if you have long rows or columns that hold values you need to track the sums of and easily compare to one another.

How do you create a pivot table?

Manually create a PivotTable

  1. Click a cell in the source data or table range.
  2. Go to Insert > Recommended PivotTable.
  3. Excel analyzes your data and presents you with several options, like in this example using the household expense data.
  4. Select the PivotTable that looks best to you and press OK.

How do you use pivot charts?

To do that, see Create a PivotTable to analyze worksheet data.

  1. Select a cell in your PivotTable.
  2. On the Insert tab, select the Insert Chart dropdown menu, and then click any chart option. The chart will now appear in the worksheet. When you click anywhere in the chart, the Chart tab appears in the ribbon.

What is the first step to creating a pivot table?

Here are the steps to create a pivot table using the data shown above:

  1. Click anywhere in the dataset.
  2. Go to Insert –> Tables –> Pivot Table.
  3. In the Create Pivot Table dialog box, the default options work fine in most of the cases. Here are a couple of things to check in it: ...
  4. Click OK.