 Copy numeric field
 Sum 2 Fieldsadd a new field with the sum of two existing
fields
 Difference 2 Fieldsadd a new field with the difference between
two existing fields
 Multiply 2 Fieldsadd a new field by multiplying two
existing fields
 Quotient 2 Fields (ratio)add new field with the quotient of two
existing fields. If the divisor is 0, the result will be
undefined.
 The next options do not add a new field; if you want to keep the
original field, copy the field first
 Add constant to field: pick a field, and add a constant to
all records (meeting the current filter).
 Multiply field by constant: pick a field, and multiply all
records (meeting the current filter) by a constant.
 Divide field by constant: pick a field, and multiply all
records (meeting the current filter) by a constant.
 Fix compass angles: Insure all angles are in the 0360
range
 Normalize fieldsselect fields will be scaled so that 0 is mean of the original field, and values represent standard deviations
from the mean. This will create a new database.
 Log of FieldIf the value is 0 or negative, the result
will be undefined.
 Sin of Fieldsine of field, interpreted in degrees.
 Cos of Fieldsine of field, interpreted in degrees.
 Average of neighborsrequires that the neighbors
have been computed and stored, and adds a new field with
the average of their values.
 Sum of neighbors
 Median Filter Field: better removal of outliers
compared to mean filter, since the outlier has no effect on the
filtered value.
 Mean Filter Field:
 Z statistics
 Remove missing data
 Oceanography require that Oceanography options are
enabled, and fields TEMP_C and SALINITY and DEPTH exist;
compute
 Sigma tee
 Sigma theta
 Sound velocity
