04-18-2005
Quote:
Originally Posted by Mudshark
I'm looking to edit a file which contains various data including date.(ddmmyyyy)
I want to sort by date and then count the number of different dates found
Any ideas how to acheive this
Thanks in advance.
I assume you have 'columns' of data one of which is 'date' in the format '
ddmmyyyy'.
Make a new first column in the format '
yyyymmdd' from your ofiginal record.
Sort by the first column - 'man sort' and then remove the first column: 'man cut'
Count 'uniq' records - 'man uniq'
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LEARN ABOUT DEBIAN
fastx_quality_stats
FASTX_QUALITY_STATS(1) User Commands FASTX_QUALITY_STATS(1)
NAME
fastx_quality_stats - FASTX Statistics
DESCRIPTION
usage: fastx_quality_stats [-h] [-N] [-i INFILE] [-o OUTFILE] Part of FASTX Toolkit 0.0.13.2 by A. Gordon (gordon@cshl.edu)
[-h] = This helpful help screen. [-i INFILE] = FASTQ input file. default is STDIN. [-o OUTFILE] = TEXT output file. default is
STDOUT. [-N] = New output format (with more information per nucleotide/cycle).
The *OLD* output TEXT file will have the following fields (one row per column):
column = column number (1 to 36 for a 36-cycles read solexa file)
count = number of bases found in this column.
min = Lowest quality score value found in this column.
max = Highest quality score value found in this column.
sum = Sum of quality score values for this column.
mean = Mean quality score value for this column.
Q1 = 1st quartile quality score.
med = Median quality score.
Q3 = 3rd quartile quality score.
IQR = Inter-Quartile range (Q3-Q1).
lW = 'Left-Whisker' value (for boxplotting).
rW = 'Right-Whisker' value (for boxplotting).
A_Count = Count of 'A' nucleotides found in this column. C_Count = Count of 'C' nucleotides found in this column. G_Count = Count
of 'G' nucleotides found in this column. T_Count = Count of 'T' nucleotides found in this column. N_Count = Count of 'N' nucleo-
tides found in this column. max-count = max. number of bases (in all cycles)
The *NEW* output format:
cycle (previously called 'column') = cycle number max-count For each nucleotide in the cycle (ALL/A/C/G/T/N):
count = number of bases found in this column.
min = Lowest quality score value found in this column.
max = Highest quality score value found in this column.
sum = Sum of quality score values for this column.
mean = Mean quality score value for this column.
Q1 = 1st quartile quality score.
med = Median quality score.
Q3 = 3rd quartile quality score.
IQR = Inter-Quartile range (Q3-Q1).
lW = 'Left-Whisker' value (for boxplotting).
rW = 'Right-Whisker' value (for boxplotting).
SEE ALSO
The quality of this automatically generated manpage might be insufficient. It is suggested to visit
http://hannonlab.cshl.edu/fastx_toolkit/commandline.html
to get a better layout as well as an overview about connected FASTX tools.
fastx_quality_stats 0.0.13.2 May 2012 FASTX_QUALITY_STATS(1)