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Documentation Index

Fetch the complete documentation index at: https://docs.summand.com/llms.txt

Use this file to discover all available pages before exploring further.

CSV upload is Summand’s no-setup entry point. There’s no wizard, no schema review, no target column to pick. Drag, drop, name it, done.
1

Open the Upload dialog

From the dashboard, click Upload. Drag the CSV onto the drop zone, or click Browse.
2

Confirm the dataset name

Defaults to the filename minus extension. Rename now or later — it’s just a display name.
3

Submit

The file streams directly to S3 via a presigned URL. As soon as the upload finishes, Summand kicks off the baseline analysis (column stats, types, missingness, distributions). Files under 100 MB land within a minute.That’s the entire upload flow. No target, no schema review.

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What you get out of the box

Once the dataset shows Ready, the Overview tab on the dataset detail page shows:
  • Row and column counts, types, missingness per column.
  • Distributions for numeric columns, top values for categoricals.
  • Last sync time and freshness pill.
That’s all baseline — produced by the column stats component, which runs automatically on first ingest.

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What to do next

You have three primary paths:

Chat with Summand

Pin the dataset to a conversation. Ask anything in plain English.

Create a view

Save a SQL transformation — visual, code, or Summand-drafted.

Set up an experiment

Schedule predictors, surprise finding, and other components.

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Re-uploading

To analyze a new version of the same file, click Replace data on the dataset page (under the Schedule tab) and upload again. Summand creates a new semantic-layer version pinned to the new file; previous versions remain accessible for comparison and for chat history. The dataset’s context, schema overrides, sharing grants, and any experiments you’ve set up are preserved across re-uploads — you don’t redo configuration.

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Common gotchas

Open Schema on the dataset page and override the inferred type. The next analysis run uses your override.
Set up an experiment with the Predictors component, supplying the target column as a typed input. See Set up an experiment.
Large uploads are resumable for several hours. Refresh the page; you’ll be prompted to resume rather than restart. If the upload still fails, try opening the file in a text editor or spreadsheet to confirm it’s well-formed.
Most often this is non-numeric content in the column — currency symbols, units, commas as thousands separators. Either clean the file before upload, or override the column type from the Schema tab.