Technical communities · SINGAPORE
Singapore analytics workshops: keep monthly and quarterly observations as periods
Ask what a row represents before turning a month or quarter label into a day on a chart.
By Boardzip · Published · Updated
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Start with these checks
- A data-cleaning or visualisation exercise handles period fields
- The facilitator distinguishes observation intervals from timestamps
- Participants can inspect source labels and transformed values together
The problem
A Singapore spreadsheet learner imports monthly or quarterly public data and the tool displays an exact day, making an aggregate period look like an observation taken on that date.
Read the source interval before formatting it
Keep the original column name and value. Data.gov.sg’s data-type guidance lists monthly and quarterly labels separately from daily dates and date-time values. Use that distinction to ask what the row measures. A monthly total, a monthly average and a value observed on one day can share a calendar month without meaning the same thing.
- Data.gov.sg: Data types ↗ · Source checked
Identify what the import changed
Compare an untouched sample with the spreadsheet’s displayed value and stored type. If the tool adds a day to represent a month, label that as a display or processing convention. It is not evidence that the measurement occurred on that day. Ask whether the source itself provides a more precise time before assigning precision to the chart.
Choose a comparison at a supported interval
For a small practice chart, decide whether every series describes the same interval. Placing monthly and quarterly values on one axis does not decide how to combine or compare them. Write the required interpretation first and ask the facilitator which aggregation, if any, fits the measure. Do not divide a quarterly value mechanically without checking what it represents.
Show the convention in the finished example
Use labels or notes that let a reader recognise the period and any transformation. Retain the original label beside the working value so the decision can be reviewed. Boardzip’s free search can help find analytics and visualisation sessions; inspect the exercise description for time-series preparation rather than assuming a charting demonstration covers period semantics.
Questions and answers
Is a month displayed as its first day proof of a daily observation?
No. Check the source interval and any import convention. A tool’s exact date display does not add measurement precision to a monthly record.
Can I compare monthly and quarterly values on the same chart?
Only after establishing a meaningful comparison for the particular measures and intervals. An aligned axis by itself does not settle aggregation or interpretation.
Sources and further reading
These references provide the guide’s source context and further reading. They do not confirm a current event, admission or an available place; check each listing’s organiser terms for those conditions.
- Data.gov.sg: Data types ↗Source checked
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