11-19-2019, 11:29 AM
You are probably talking about the "new simple experiment" function in the app itself? If so, you will love our web editor, with which you can edit all the details and only store/plot/export specific axes: https://phyphox.org/editor
However, this will not affect the sampling rate. Neither Android nor iOS have a method to request only a specific axis and the sampling rate is limited by the system anyways (the actuall sensor could run faster if we were able to communicate directly). So, if you use the editor log only specific axes, you would only see an improvement in memory usage and maybe the rate at which the graphs are updated, which both only become relevant for long measurements if your phone cannot plot all the points quickly (it wills till record them) or runs out of memory.
However, this will not affect the sampling rate. Neither Android nor iOS have a method to request only a specific axis and the sampling rate is limited by the system anyways (the actuall sensor could run faster if we were able to communicate directly). So, if you use the editor log only specific axes, you would only see an improvement in memory usage and maybe the rate at which the graphs are updated, which both only become relevant for long measurements if your phone cannot plot all the points quickly (it wills till record them) or runs out of memory.