slightly larger. However, since the missing value and the data array are the same data type, it is still safe use <i>==</i> when generating <i>badmask</i>. In the above we replace the missing value, both in the data array as well as the flag value, with 1.0E+20. Then some of the data values near the equator and at intervals of 10 degrees longitude, are changed to 5.0¬∞C. These changes are reflected in the arrays in the dictionary, as demonstrated by the last two print statements showing the missing data 