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:

  • Invalid aggregations (e.g., sum of a column with null returns null)

  • Broken joins or filters due to missing key values

  • Skewed statistical results when nulls bias averages

  • Dashboard and export errors from incomplete rows

Edilitics gives you full control to:

  • Impute missing values based on data type and context

  • Drop incomplete rows with full column-level precision

  • Apply operations across multiple columns at once

  • Preview all changes before applying

How to Handle Nulls in Edilitics

  • Select columns with missing values

    Edilitics automatically highlights fields that contain nulls. You can select one or more to apply the operation.

  • Choose a handling method

    For each selected column, choose one of the following strategies:

    • Drop – Exclude rows where this column is null

    • Impute – Replace nulls using a defined rule

  • Select imputation logic (if applicable)

    Based on column type, choose from:

    • For numerical fields:

      Mean, Median, Min, Max, Constant

    • For categorical fields:

      Mode or a Custom Constant

  • Submit the operation

    Edilitics applies the transformation and shows the updated schema with imputation results.

Supported Null Handling Methods

MethodDescriptionRecommended For
DropRemoves rows where selected column(s) are nullRows with non-recoverable gaps
MeanReplaces nulls with the column’s averageNumerical fields with normal distribution
MedianUses the midpoint value to replace nullsNumerical fields with outliers
ModeFills with the most frequent value in the columnCategorical fields
Min / MaxReplaces with minimum or maximum valueNumerical fields in performance metrics
ConstantFills nulls with a user-defined static valueDefault fill-ins for reporting
(No Interpolation)Not supported in Edilitics at this time-

Best Practices for Null Handling

  • Analyze null patterns first – Understand if missingness is random or systematic

  • Choose type-appropriate methods – Don't use mean for categories or mode for decimals

  • Validate post-imputation impact – Watch for statistical drift in aggregates

  • Apply domain knowledge – Use constants or medians that make contextual sense

Common Use Cases for Null Handling

IndustryScenarioRecommended Action
RetailMissing values in Age or LocationUse Median for age, Mode for location
HealthcareGaps in Vitals or Lab ResultsUse Median or Min for physiological fields
FinanceMissing Transaction Amount or Transaction DateUse Mean or Constant for amount, drop or filter for invalid dates
ManufacturingNulls in Quality Score for some batchesImpute using Mean or Median based on production run
EducationGaps in Exam Scores or AttendanceUse Mean for scores, Mode or Constant for categorical attendance status

Manual Equivalent – SQL & Pandas Examples

SQL Example – Redshift (Impute and Drop)


-- Impute with mean
SELECT COALESCE(age, AVG(age) OVER()) AS imputed_age FROM customers;
-- Drop rows with nulls
SELECT * FROM orders WHERE transaction_amount IS NOT NULL;

Pandas Example


# Impute
df['age'] = df['age'].fillna(df['age'].median())
# Drop rows
df = 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:

  • Data-type aware – Imputation options vary by field type

  • Safe – Null drops are column-scoped, not table-wide

  • Previewable – Verify before applying

  • 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

For technical inquiries, implementation support, or enterprise-level assistance, our dedicated technical support team is available to ensure optimal deployment and utilization of Edilitics solutions. Please contact our enterprise support desk at support@edilitics.com. Our team of specialists will respond promptly to address your requirements.

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