Passive and semipassive RFID tags do not use a radio transmitter; instead, they use modulation of the reflected power from the tag antenna. Reflection of radio waves from an object has been a subject ...

```{r echo=T, results='hide', error=FALSE, warning=FALSE, message=FALSE} #set working directory so R knows where to find and save data. This is the folder you created when you made a workspace above.

We have been able to conclude that using an isotropic antenna, an RFID reader might achieve a read range of a few meters with 1 watt of output power. This configuration might be fine if RFID tags of ...

## 4.4.1 Create a dataframe of the total visits per individual across the whole of your experiment, irrespective of feeder. (hint: group_by) ## 4.4.2 Create a new dataframe that excludes individuals ...