02-05-2019
Hi Arun,
Welcome to the UNIX.com forums.
Whenever you start a thread here, it always helps us if you tell us what operating system and shell you're using. Various systems and shells have many similar, but not always identical tools and options. If we don't know what shell and operating system you're using, we are likely to make suggestions that will not work in your environment.
Please also show us what you have tried, what errors you are getting, what output you're getting, and tell us where you are stuck. We are here to help you learn how to do things for yourself; not to act as your unpaid programming staff.
When you say you're using a csv file, that can mean several things. Usually, it is a file containing fields that are separated by a comma. Sometimes it is a file containing fields that are separated by some other single character such as a <tab>, a <colon>, a <semicolon>, or some other single character. The sample data you've shown us seems to use a <tab> character to separate some fields and a <tab> and a varying number of <space>s for other fields. We need a clear description of what file format you are actually using.
You also need to clearly describe the output you are trying to produce. Saying that the count field should be 2,2,2,2,2 seems to be saying that you want each line of output to contain identical data that indicates the number of data points in each column that contains a value greater than .3, but that doesn't match the sample data you have supplied. Please clearly describe, in English, what the data in the count field should be for each input line AND please show us the exact output that you hope to produce from the sample input file you have supplied (in CODE tags).
Note also that if every line of input in your sample data has identical data in the fields that are being investigated, it makes it hard to know if any code that we might write for you is actually performing the checks you want to perform.
Please help us help you.
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JOIN(1) General Commands Manual JOIN(1)
NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-jn m Join on the mth field of file n. If n is missing, use the mth field in each file.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO
sort(1), comm(1), awk(1)
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)