Help

Search for a data item

With the large number of items in the Zoommi database, it is necessary to use various filters to find the items of interest.

These filters include:

	- Text search within the item name and its description
	- Category and sub categories via a selection lists
	- Source of data via a selection list
	- Country via a selection list
	- State, City and/or Location

The filters are cumulative to refine a search. The search will use the applied filters to retrieve a list of items in the Results selection list.
The filters may be reset to Any be clicking on the icon button.
The search dialog is standard across all the trend pages as well as the Items page. Once the Results selection box is filled and you are in a Trend page, simply select the item you want to trend. If you are on the Items page, select the item to review its details.

Create a single trend with up to 12 lines

Once an item has been selected via the Search selection, click on the Trend icon to plot this item using the default dates.

If you want to add another item to the trend, select a new item from the Results list and click on the Add icon . Up to eight items can be trended within the single trend box.

To select a different data range, click on the Clock icon .

If the Single scale is selected, then the Y-Axis scale is based on the first item selected, for all the items on the trend.
If the Multi scale is selected, each trend is auto scaled individually with a minimum and maximum value shown inside the trend.
If you do not want the trend to auto-scale, then select the fixed scale option and provide a minimum and maximum value to be used for the Y-axis.

The trend is interactive, so by clicking on the point of interest on the trend, an intersection line is shown with its date and value for each trend line. If you wish to zoom in to the trend, create a 'rubber-band' around the trend line by positioning the cursor above and the the left of the required data, and then hold the left mouse button down while you drag the cursor to the right and down. When it is in the correct place, release the left mouse button and the trend will be redrawn, just showing the selected data.

Create additional trends, with different start/end times

Once an item has been selected via the Search selection, click on the Trend icon for Trend 1, 2, 3 or 4 to plot this item using the default dates.

If you want to add another item to either Trend 1, 2, 3 or 4, select a new item from the Results list and click on the appropriate Add icon . Up to four items can be trended within each trend box.

To select a different data range for either Trend 1, 2, 3 or 4, click on the appropriate From and To calendar icons .

If the Single scale is selected, then the Y-Axis scale is based on the first item selected, for all the items on the trend.
If the Multi scale is selected, each trend is auto scaled individually with a minimum and maximum value shown inside the trend.
If you do not want the trend to auto-scale, then select the fixed scale option and provide a minimum and maximum value to be used for the Y-axis.

Trends 1 - 4 are interactive, similar to the Single trend.

Create a statistics trend for a single item, showing optional mean, standard deviation and linear regression lines.

Once an item has been selected via the Search selection, click on the Trend icon to plot this item using the default dates.

To select a different data range, click on the From and To calendar icons .

If the Auto scale is selected, then the Y-Axis scale is based on the item selected.
If you do not want the trend to auto-scale, then select the fixed scale option and provide a minimum and maximum value to be used for the Y-axis.

If you want to show optional lines on the trend for the calculated arithmetic mean, standard deviation and linear regression lines, click on the appropriate checkbox. The calculated statistics are also shown in the top section of the trend.

The Statistics trend is interactive, similar to the Single trend.

Create an X-Y Plot Trend

Once an item has been selected via the Search selection, click on the X icon for the X-Axis value, then select a new item and click on the Y icon for the Y-Axis value.

Select the date range or use the default dates. There is also the option to default to interpolate the Y values based on the X value times.
The alternative option is to define the number of evenly spaced samples required and select the Samples over Period option.

When all the options are selected, click on the Trend icon to create the plot.

The X-Y plot is partilally interactive. If you click on a the plot, the X and Y values are shown in the right hand column.

Save my Display

Favourites are available to all users who have registered on the Zoommi site and have logged in.
Items that you are regularly wanting to trend may be added to your own Favourites list. These Favourites will then always be included first in any search results.
If you are logged in and an item has been selected, the icon will be displayed in the Items page or any Trend page. Simply click on the icon and that item will be added to your Favourites list. You can review your Favourites and modify them from the Favourites Page.

View Database Items

The Items Page provides a means of seeing the definition detail of any public item, in the database.