The search menu offers different options to help you find periods of relevant data useful to your analysis. You can find the Search menu in the menu bar shown in the following image.
In the search menu, you will find the following search options:
- Similarity search: look for patterns in your data by searching through history and finding visually similar events.
- Value based search: look for periods in history where specific conditions are met, such as temperatures below certain thresholds, pressures above a safety limit, valves fully open etc.
- Digital step search: find specific occurrences in your data where a step was made in a digital tag, such as a transition between two product types or batch phases.
- Operating area search: search for periods adhering or not adhering to a selected region in the scatterplot, e.g., to identify different or changing modes of operation such as fouling.
- Context item search: Search and select context items based on the filters applied in a saved ContextHub view.
General flow of a search
The general flow to work with searches is described below. For more information about creating new searches or opening and editing existing ones, please refer to the following sections in this documentation.
Note: To create a new search, you need one or more “Active tags” (depending on the search type). For more information about adding “Active tags”, please refer to the Adding, hiding and removing tags document.
- Click on "Create new" search in the search menu.
- Define search criteria.
- Perform the search.
- This step takes you to the Search detail screen. Here, you can decide to edit or save search. Clicking the home button will take you back to the search overview screen.
When opening a saved search, you will immediately be directed to the Search detail screen, which is a view only summary of the current search.
The search detail screen shows the following information:
- The search type
- The search name and the description (if the search is saved)
- The search conditions
- A link to edit the search
- A link to add or manage the calculations
- A link to save or overwrite the search
- A time frame indicating the period of the Context Chart
To make changes, you need to click on the “Edit search conditions” link. Also, for visual searches, like similarity searches and area searches, changes performed on the focus chart will only be considered as soon as you edit the search.
To cancel the edit flow, click on the back arrow at the top. To accept the changes and perform the search, click on "Search" button.
Note: When editing a saved search, TrendMiner will notify you with an “Unsaved changes” message.
Note: After editing a saved search, you can decide to "Save the changes as a new search", or "Overwrite the original search".
Open a saved search
To open a saved search:
- Click on the link “Saved Searches” under the search type of your interest. This action will open the side panel of the work organizer, filtered on the selected search type.
- Select the search you want to open and click on “Open search” button. The selected search will open, and now the search detail screen will show the search criteria of the saved search.
- Click “Search” to perform the search and see the results.