Handle Null Values | Clean Incomplete Data Without Code
Missing values distort analysis, skew aggregations, and break logic in downstream workflows. Whether you're preparing a dataset for modeling or dashboarding, unresolved nulls compromise your outputs.
Edilitics solves this with a governed, no-code Null Values operation—offering flexible options to drop incomplete records or impute missing values based on data type. No scripts, no guesswork—just clean, reliable data in minutes.
Why Null Handling Matters
Datasets with unresolved nulls lead to:
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❌ Invalid aggregations (e.g., sum of a column with
null
returnsnull
) -
❌ Broken joins or filters due to missing key values
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❌ Skewed statistical results when nulls bias averages
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❌ Dashboard and export errors from incomplete rows
Edilitics gives you full control to:
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✅ Impute missing values based on data type and context
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✅ Drop incomplete rows with full column-level precision
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✅ Apply operations across multiple columns at once
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✅ Preview all changes before applying
How to Handle Nulls in Edilitics
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Select columns with missing values
Edilitics automatically highlights fields that contain nulls. You can select one or more to apply the operation.
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Choose a handling method
For each selected column, choose one of the following strategies:
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Drop – Exclude rows where this column is null
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Impute – Replace nulls using a defined rule
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Select imputation logic (if applicable)
Based on column type, choose from:
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For numerical fields:
Mean
,Median
,Min
,Max
,Constant
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For categorical fields:
Mode
or a custom constant
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-
Submit the operation
Edilitics applies the transformation and shows the updated schema with imputation results.
Supported Null Handling Methods
Method | Description | Recommended For |
---|---|---|
Drop | Removes rows where selected column(s) are null | Rows with non-recoverable gaps |
Mean | Replaces nulls with the column’s average | Numerical fields with normal distribution |
Median | Uses the midpoint value to replace nulls | Numerical fields with outliers |
Mode | Fills with the most frequent value in the column | Categorical fields |
Min / Max | Replaces with minimum or maximum value | Numerical fields in performance metrics |
Constant | Fills nulls with a user-defined static value | Default fill-ins for reporting |
(No Interpolation) | Not supported in Edilitics at this time | — |
Best Practices for Null Handling
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Analyze null patterns first – Understand if missingness is random or systematic
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Choose type-appropriate methods – Don't use mean for categories or mode for decimals
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Validate post-imputation impact – Watch for statistical drift in aggregates
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Apply domain knowledge – Use constants or medians that make contextual sense
Common Use Cases for Null Handling
Industry | Scenario | Recommended Action |
---|---|---|
Retail | Missing values in Age or Location | Use Median for age, Mode for location |
Healthcare | Gaps in Vitals or Lab Results | Use Median or Min for physiological fields |
Finance | Missing Transaction Amount or Transaction Date | Use Mean or Constant for amount, drop or filter for invalid dates |
Manufacturing | Nulls in Quality Score for some batches | Impute using Mean or Median based on production run |
Education | Gaps in Exam Scores or Attendance | Use Mean for scores, Mode or Constant for categorical attendance status |
Manual Equivalent – SQL & Pandas Examples
SQL Example – Redshift (Impute and Drop)
-- Impute with meanSELECT COALESCE(age, AVG(age) OVER()) AS imputed_age FROM customers;-- Drop rows with nullsSELECT * FROM orders WHERE transaction_amount IS NOT NULL;
Pandas Example
# Imputedf['age'] = df['age'].fillna(df['age'].median())# Drop rowsdf = df.dropna(subset=['transaction_amount'])
In Edilitics, this takes a few dropdowns—no queries, no syntax, and fully governed.
Reliable, Schema-Aware, Risk-Free
Edilitics' Null Values operation is:
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✅ Data-type aware – Imputation options vary by field type
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✅ Safe – Null drops are column-scoped, not table-wide
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✅ Previewable – Verify before applying
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✅ Governed – All changes are tracked within transformation flows
Cleaning up nulls is a prerequisite for trustworthy analytics. With Edilitics, you can drop bad rows, intelligently fill gaps, and prepare datasets for reliable decision-making—without writing a single line of code.
Next: Structure Cleaned Data for Analysis
Once nulls are resolved, continue your transformation with:
Enterprise Support & Technical Assistance