Hello, could anyone help me with the below problem;
I have a table which includes the 'length of stay' (how many days someone has received the service). I want to pull this data month by month into a powerpivot chart and show the average.
For some reason it wont work it out, it 'counts' the data but wont work out the 'average', brings up a error message; 'error - calculation aborted: calculation error in measure '...': the function takes an argument that evaluates to numbers or dates and cannot work with values of type string'.
Does anyone know what this means and how I can resolve the issue?
Thank you in advance
I have a table which includes the 'length of stay' (how many days someone has received the service). I want to pull this data month by month into a powerpivot chart and show the average.
For some reason it wont work it out, it 'counts' the data but wont work out the 'average', brings up a error message; 'error - calculation aborted: calculation error in measure '...': the function takes an argument that evaluates to numbers or dates and cannot work with values of type string'.
Does anyone know what this means and how I can resolve the issue?
Thank you in advance