Set all windows start and end samples from this one

It is sometimes useful to assign times of the start and end samples in one window to be the same as another window. As an example, say you have employed several loggers to record data at various points in a room, and you wanted to know the mean daytime temperature (say between 8am and 4pm) at each point. You could accomplish this easily with the following sequence:

•Pick one and set the start sample to 8am (F7) and the end sample to 4pm (F8) on the day of interest.

•Right click the window and select Set all windows start and end sample from this one from the pop-up menu. Alternatively use the shortcut key Ctrl-F10.

Now all the windows will have the start and end samples set from the first window. It is then a simple matter of reading the mean temperatures between the start and end samples.

Note that this function does not assign the start and end sample number, but instead chooses the sample that is closest in time to the time of the sample in the first window. This means that the files do not have to aligned in time, or even have the same sample period.. For example:

File1 contains samples from 1:00pm to 11:00pm, sampled every 10 seconds and the start and end samples are set at 2:00pm and 2:30pm

File2 has samples from 1:00pm and 6:00pm, sampled every 15 seconds.

If we use Ctrl-F10 on the graph of File1, the start and end samples of File2 will be set to 2:00pm and 2:30pm, or whatever samples are closest to these times.

It is not possible to use this function when the open windows contain a mixture of data from TRX files and data from "legacy" TR files. This is because time information was recorded differently for TR files and timezone information was not recorded.