Looker Table Calculation Functions Calculator

Calculator

Function

Selected row number

Offset rows

Moving window

Decimal places

Threshold value

Numeric values

Example Data Table

Row	Period	Metric Value	Common Table Calculation
1	Week 1	1200	Starting value
2	Week 2	950	Percent change from previous row
3	Week 3	1430	Running total
4	Week 4	1100	Moving average
5	Week 5	1725	Rank descending
6	Week 6	1320	Percent of total

Formula Used

This calculator uses numeric row arrays. The selected function decides whether it returns one summary value or a row by row series.

Option	Formula	Meaning
Sum	sum(values)	Adds all numeric rows.
Average	sum(values) / count(values)	Finds the mean row value.
Percent of Total	(row value / grand total) * 100	Shows row contribution.
Running Total	prior total + current row	Builds a cumulative sequence.
Offset	row plus or minus offset	Reads nearby row values.
Moving Average	average(window rows)	Smooths row trends.
Z Score	(value - average) / deviation	Measures distance from the mean.

How to Use This Calculator

Paste numeric values into the value box.
Select a table calculation function.
Enter the row number you want to inspect.
Set offset rows, window size, decimal places, or threshold.
Press the calculate button.
Review the result above the form.
Download CSV or PDF when you need a saved copy.

Looker Table Calculation Functions Guide

Table calculations help analysts test logic after a query returns results. They are useful when a metric needs quick review. A team can compare rows, rank results, create running totals, and check percent of total values. This calculator gives a safe practice space. It does not change a dashboard. It shows each step in a clear way.

Why These Functions Matter

Many table formulas work across visible rows. A sum adds every value. An average divides the total by the row count. A rank compares each value against the rest. Offset logic reads a value from another row. Moving averages smooth uneven data. Z scores show how far one value sits from the mean.

Input Quality

Use clean data before you calculate. Remove currency symbols when possible. Keep one value per row or separate values with commas. Match the row index to the number you want to inspect. Choose a window size when smoothing. Choose an offset size when comparing nearby rows. Set decimal places for readable output.

Result Review

The result section explains the selected formula. It also lists row level values when the function returns a series. This makes the tool helpful for training and debugging. It can support dashboard notes, audit checks, and classroom examples. Export the report when you need a record. The CSV file is useful for spreadsheets. The PDF file is useful for sharing.

Best Practice

Table calculations should not replace modeled business rules. Use them for quick analysis, presentation work, and one time checks. Stable metrics often belong in the data model. Still, table calculations are valuable. They help users test ideas before asking for permanent changes. They also make row comparisons easy.

Workflow

A good workflow is simple. Start with the raw values. Select the function. Review the formula. Read the interpretation. Then compare the output with expected business logic. When the result looks right, document the choice. When it looks wrong, inspect sorting, filters, and row order. Row order matters for running totals, offsets, and moving windows.

Final Notes

This calculator focuses on numeric table work. It covers totals, averages, percentages, ranks, offsets, variance, deviation, and row checks. These functions cover many reporting tasks. They also show how small formula choices can change an answer. Use it to learn patterns before dashboards become final.

FAQs

What does this calculator do?

It tests numeric table calculation functions on a list of values. You can check totals, ranks, offsets, percentages, moving averages, and spread measurements before using similar logic in a report.

Can I paste values from a spreadsheet?

Yes. Paste values separated by lines, commas, spaces, semicolons, or pipes. The tool ignores common currency and percent symbols when the remaining value is numeric.

Why does row order matter?

Running totals, offsets, moving averages, and percent changes depend on visible order. If sorting changes, those outputs can change too. Always match row order with the report view.

What is percent of total?

Percent of total divides one row by the grand total, then multiplies by one hundred. It shows how much one row contributes to all visible numeric rows.

What is an offset row?

An offset row reads another row near the current row. Previous offset reads above. Next offset reads below. Empty results appear when the target row is outside the list.

What does moving average mean?

A moving average takes the current row and nearby prior rows inside the selected window. It smooths spikes and helps show trend direction more clearly.

Why use z scores?

A z score shows how far a row value is from the average, measured in standard deviation units. It helps detect unusually high or low rows.

Are the downloads optional?

Yes. Calculate first, then download the CSV or PDF only when you need a record. The files include the selected function, formula, and row results.