Summary Description. Assemble, install, or maintain solar photovoltaic (PV) systems on roofs or other structures in compliance with site assessment and schematics. May include measuring, cutting, assembling, and bolting structural framing and solar modules. May perform minor electrical work such as current checks.
IFERROR(value, value_if_error) The IFERROR function syntax has the following arguments: Value Required. The argument that is checked for an error. Value_if_error Required. The value to return if the formula evaluates to an error.
Use =VARA()#) while you are basing your calculation on the sample and you want Excel to treat logical values as TRUE=1, FALSE=0 and to interpret text values as numbers. Note: this formula will result in an error if the range of cells you select contains text that cannot be interpreted as a phone number. 3. Use =VARP()#)when you will be basing your calculation to the entire population and you want Excel to ignore logical (TRUE/FALSE) values and text. 4.