Removing rows that contain non-unique column entry
Background:
I have a file of thousands of potential SSR primers from Batch Primer 3.
I can't use primers that will contain the same sequence ID or sequence as another primer.
I have some basic shell scripting skills, but not enough to handle this.
What you need to know:
I need to remove the entire line(row) if its entry in column 3 or 13 is not unique when compared to the rest of its column. Or, I need to cat all lines that have a unique entry in columns 3 and 13 to a new file.
Note: I can't just remove the duplicate value, I have to remove the whole row after checking a value in that row against the rest of its column.
Example data is attached. Red values are duplicates.
Dear people, can you please enlighten:
I need to do a (most probably) very simple thing but couldn't figure how.
I have files with lots of lines starting with a fixed expression:
Query=. (the dot is a space)
followed by different combinations of characters including special ones such... (5 Replies)
Hello,
I have 2 columns (1st column has multiple entries but the corresponding values in the column 2 may be the same or different.) however I want to extract unique values for each entry in column 1 by assigning the max value from column 2
SDF4 -0.211654
SDF4 0.978068
... (1 Reply)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (4 Replies)
Hi all
I have a file which looks like this
1234|1|Jon|some text|some text
1234|2|Jon|some text|some text
3453|5|Jon|some text|some text
6533|2|Kate|some text|some text
4567|3|Chris|some text|some text
4567|4|Maggie|some text|some text
8764|6|Maggie|some text|some text
My third column is my... (9 Replies)
I have 2 files,
file01= 7 columns, row unknown (but few)
file02= 7 columns, row unknown (but many)
now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there
e.g.
file 01
James|0|50|25|10|50|30... (1 Reply)
Hi all,
I have the following input - the unique row key is 1st column
cat file.txt
A response
C request
C response
D request
C request
C response
E request
The desired output should be
C request (7 Replies)
I do have a tab delimited file of the following format:
431 kat1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
432 kat2 2 NA NA NA NA NA NA NA NA NA NA NA NA NA
433 KATe NA 3 NA NA 6 NA NA NA 10 11 NA NA NA NA
542 Kaed 2 NA NA NA NA NA NA NA NA NA NA NA NA NA
543 hkwuy NA NA NA NA 6 NA NA NA NA 11 NA NA... (11 Replies)
Hello Team,
I need your help on the following:
My input file a.txt is as below:
3330690|373846|108471
3330690|373846|108471
0640829|459725|100001
0640829|459725|100001
3330690|373847|108471
Here row 1 and row 2 of column 1 are identical but corresponding column 2 value are... (4 Replies)
Hi All ,
I am having an input file as stated below
Input file
6 ddk/djhdj/djhdj/Q 10 0.5
dhd/jdjd.djd.nd/QB 01 0.5
hdhd/jd/jd/jdj/Q 10 0.5
512 hd/hdh/gdh/Q 01 0.5
jdjd/jd/ud/j/QB 10 0.5
HD/jsj/djd/Q 01 0.5
71 hdh/jjd/dj/jd/Q 10 0.5
... (5 Replies)
Discussion started by: kshitij
5 Replies
LEARN ABOUT PHP
db2_fetch_both
DB2_FETCH_BOTH(3) 1 DB2_FETCH_BOTH(3)db2_fetch_both - Returns an array, indexed by both column name and position, representing a row in a result setSYNOPSIS
array db2_fetch_both (resource $stmt, [int $row_number = -1])
DESCRIPTION
Returns an array, indexed by both column name and position, representing a row in a result set. Note that the row returned by
db2_fetch_both(3) requires more memory than the single-indexed arrays returned by db2_fetch_assoc(3) or db2_fetch_array(3).
PARAMETERS
o $stmt
- A valid stmt resource containing a result set.
o $row_number
- Requests a specific 1-indexed row from the result set. Passing this parameter results in a PHP warning if the result set uses a
forward-only cursor.
RETURN VALUES
Returns an associative array with column values indexed by both the column name and 0-indexed column number. The array represents the next
or requested row in the result set. Returns FALSE if there are no rows left in the result set, or if the row requested by $row_number does
not exist in the result set.
EXAMPLES
Example #1
Iterating through a forward-only cursor
If you call db2_fetch_both(3) without a specific row number, it automatically retrieves the next row in the result set. The follow-
ing example accesses columns in the returned array by both column name and by numeric index.
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$stmt = db2_prepare($conn, $sql);
$result = db2_execute($stmt);
while ($row = db2_fetch_both($stmt)) {
printf ("%-5d %-16s %-32s %10s
",
$row['ID'], $row[0], $row['BREED'], $row[3]);
}
?>
The above example will output:
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00
Example #2
Retrieving specific rows with db2_fetch_both(3) from a scrollable cursor
If your result set uses a scrollable cursor, you can call db2_fetch_both(3) with a specific row number. The following example
retrieves every other row in the result set, starting with the second row.
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$result = db2_exec($stmt, $sql, array('cursor' => DB2_SCROLLABLE));
$i=2;
while ($row = db2_fetch_both($result, $i)) {
printf ("%-5d %-16s %-32s %10s
",
$row[0], $row['NAME'], $row[2], $row['WEIGHT']);
$i = $i + 2;
}
?>
The above example will output:
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00
SEE ALSO db2_fetch_array(3), db2_fetch_assoc(3), db2_fetch_object(3), db2_fetch_row(3), db2_result(3).
PHP Documentation Group DB2_FETCH_BOTH(3)