VAR_SAMP

Returns the sample variance of non-NULL records.

Syntax

VAR_SAMP(numeric_expression int64) → double

• numeric_expression: The set of records to calculate variance for.

Examples

VAR_SAMP example

SELECT VAR_SAMP(transaction_count) 
FROM eth.recent_blocks
-- 1.868747683518558

VAR_SAMP(numeric_expression float) → double

• numeric_expression: The set of records to calculate variance for.

Examples

VAR_SAMP example

SELECT VAR_SAMP(gas_used) 
FROM eth.recent_blocks
-- 5.106086065187043

VAR_SAMP(numeric_expression double) → double

• numeric_expression: The set of records to calculate variance for.

Examples

VAR_SAMP example

SELECT VAR_SAMP(gas_used) 
FROM eth.recent_blocks
-- 5.106086065187043

VAR_SAMP(numeric_expression int32) → double

• numeric_expression: The set of records to calculate variance for.

Examples

VAR_SAMP example

SELECT VAR_SAMP(transaction_count) 
FROM eth.recent_blocks
-- 1.868747683518558

Usage Notes

For single input records, VAR_SAMP will return NULL.