Text processing/2: Difference between revisions

Line 2:

The following data shows a few lines from the file readings.txt (as used in the [[Data Munging]] task).

The data comes from a pollution monitoring station with twenty four instruments monitoring twenty four aspects of pollution in the air. Periodically a record is added to the file ~~constituting~~ a line of 49 white-space separated fields, where white-space can be one or more space or tab characters.

The data comes from a pollution monitoring station with twenty four instruments monitoring twenty-four aspects of pollution in the air. Periodically a record is added to the file, each record being a line of 49 white-space separated fields, where white-space can be one or more space or tab characters.

The fields (from the left) are:

DATESTAMP [ VALUEn FLAGn ] * 24

i.e. a datestamp followed by twenty four repetitions of a floating point instrument value and that ~~instruments~~ associated integer flag. Flag values are >= 1 if the instrument is working and < 1 if there is some problem with that instrument, in which case that instrument's value should be ignored.

i.e. a datestamp followed by twenty four repetitions of a floating-point instrument value and that instrument's associated integer flag. Flag values are >= 1 if the instrument is working and < 1 if there is some problem with that instrument, in which case that instrument's value should be ignored.

A sample from the full data file [http://rosettacode.org/resources/readings.zip readings.txt] is:

Line 19:

The task:

# Confirm the general field format of the file

# Confirm the general field format of the file.

# Identify any DATESTAMPs that are duplicated.

# ~~What~~ number of records have good readings for all instruments.

# Report the number of records have good readings for all instruments.

=={{header|Ada}}==