Filling in the empty columns with the rows above them
I have a text file that looks like the following:
In this file, some rows do not contain any numbers or values in their first four columns like row number 3. I would like to fill in those cells with the cells above them so that the text file looks like this:
How can I do that? Thanks!
Last edited by joeyg; 03-05-2012 at 04:16 PM..
Reason: Please wrap scripts and data with CodeTags
Hi all,
I have a file that contains about 1000 rows and 800 columns. Nearly every row has 800 columns but some DONT. I want to extend the rows that dont have values with NA's. Here is an example:
my file
bob 2 4 5 6 8 9 4 5
tar 2 4 5 4 3 2 9 1
bro 3 5 3 4
yar 2 ... (7 Replies)
Hi,
I'm working on a script that will take the contents of a file, that is in a row and column format, and compare it to a arrangment file. Such that if there is any or all blanks in my content file, the blank will be filled with a flag and will retain the row and column configuration.
Ex.
... (2 Replies)
I have a text file that looks like this:
1 rs523634 8.22486
1
1 rs585160 8.22488
1 rs497228 8.2249
1
1 rs600933 8.225
1 rs480106 8.22531
1 rs600199 8.22533
1 rs529015 8.22534
1 rs598894 8.22534
I want to delete the rows with empty... (2 Replies)
I have a text file that looks like the following:
rs529715 CFD
rs1550758 CIDEB
Magmas
rs12542019 CPNE1
RBM12
rs10515181 CPNE1
RBM12
rs4411112 CPT1A
Some rows have 1 column, whereas some have 2. The ones that have 2 columns have one column (1st column) that start with rs.
I need to... (6 Replies)
Hi,
I have a file with fixed number of columns (total 58 columns) delimeted by pipe (|). Due to a bug in the application the export file does not come with fixed number of columns. The missing data columns are being replaced by blank in the output file. In one line I can have 25 columns (33... (1 Reply)
Hello all,
I have a file which is tab separated like that:
PHE_205_A TIP_127_W ARG_150_B
MET_1150_A TIP_12_W VAL_11_B
GLU_60_A TIP_130_W ARG_143_B
LEU_1033_A TIP_203_W ARG_14_B
SER_1092_A TIP_203_W
THR_1090_A TIP_203_W
SER_1092_A TIP_25_W ... (6 Replies)
I have a text file which includes empty columns with missing values. I want to fill the empty columns with the character "X". How do I go about doing that? Thanks! (1 Reply)
Hi,
I have a text file where some of the values in columns are missing:
Input:
QhFudW3dKSYL2NTQUA 1 11133999-11134048
uhIp9KxB6USIy16CEY 1 11126760-11126774
11126775-11126805
11128065-11128068
6epeZ6CTNW4Au8uXys 1 24480823-24480872
Tp3nvutucBZ13CjuXc 1 155204870-155204891... (3 Replies)
Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns.
I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Discussion started by: bkane3
5 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)