Articles about data manipulation | UserComp.com

Splitting Full Names into First, Middle, and Last Names using Pandas - A Tech Support Guide

Split full names into separate first, middle, and last name columns using pandas vectorized string methods.

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Combine Two Columns with Different Values in PySpark SQL

Resolve null value propagation when merging PySpark columns by using concat or concat_ws to handle missing data gracefully.

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Filling an Excel Cell based on data in two other cells

Automate Excel cell values by combining text with TEXTJOIN or applying logical decisions using IF, AND, and OR functions.

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how to display values from column B in a list based on values in column A (CSV example)

Filter column B values from a CSV based on matching entries in column A using Python pandas.

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How to delete the first row from the list in a column in Power Query?

Remove unwanted headers or initial elements from Power Query tables and nested lists using Remove Top Rows or List.Skip.

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Combining Data from Column F in Microsoft Excel

Combine data from Column F into comma-separated strings based on matching values in Columns A and B using Excel dynamic array formulas.

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Matching One Column Another: Power Plant Coordinates in Excel

Resolve missing power plant coordinates by matching columns in Excel using VLOOKUP, XLOOKUP, or Power Query.

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Binding Rows of Two quanteda Corpora with Same Docvars

Resolve the challenge of merging two quanteda corpora with identical docvars into a single unified object for text mining analysis.

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Better method to use jq

Transform complex JSON structures into clean data using jq functions like map, reduce, and try-catch for robust processing.

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Prevent Hidden Cells from Changing in Filtered Ranges: A Tech Support Guide

Use the SUBTOTAL function to exclude hidden rows from calculations in filtered Excel ranges.

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Removing rows in CSV file using another CSV file

Filter rows in a source CSV by excluding records matching keys found in a reference exclusion list using Python pandas.

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Replace nan value in a pandas dataframe where column is string type

Replace NaN values in pandas string columns by casting to string type and using fillna or replace methods.

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R-way compare individual item's column strings in data set

Compare adjacent row strings in an R dataset using dplyr lag and lead functions to detect changes or duplicates.

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Trying to turn rows of data into 4 columns of data...with a twist in Excel 365

Resolve the problem of converting a single column of data into a four-column grid in Excel 365 using WRAPROWS or INDEX formulas.

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Date Extraction and Sorting from Pandas Series with Regex in Python

Extract and sort mixed date formats from Pandas Series strings using regex extraction and datetime conversion.

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Date Format Wrong Order: Fixing Thousands of Records

Fix thousands of records with incorrect date formats by using SQL functions like STR_TO_DATE to parse and standardize legacy strings into ISO 8601.

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Mirroring and Flipping Excel Cell Timeduration Data

Convert text timeduration data to numeric values in Excel to prevent sorting errors and enable accurate row reversal or transposition.

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Extracting Dates from Table: Single Column Sorting

Extracts comma-separated dates from a single cell into individual rows for sorting using VBA.

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Interweaving Groups in Pandas: A Comprehensive Guide

Resolve the lack of a built-in interweave function in Pandas by using concat for vertical stacking or merge for key-based joining.

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R gsub Issue: Unintended Word Removal with Column of Replacements

Fix R gsub unintended word removal by using mapply to apply element-wise replacements instead of relying on vector recycling.

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Delete Empty Rows: Columns Keep

Prevents accidental data loss when deleting empty rows in Excel, LibreOffice Calc, and Google Sheets by using helper columns to preserve partially filled records.

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