I was working with my data (a tab delimted text file) in Linux and wanted to replace all "NaN" values in my huge table with "NA", so i used the following sed command:
Code:
sed 's/NaN/NA/g' /filepath -> outputfile.txt
The results were good, all "NaN" were replaced with "NA", but the new output file had no headers no column names anymore!
Example:
Before:
Code:
V12 V13 V14 V15 V16
100 200 300 NaN 500
220 NaN 100 500 600
700 NaN 900 100 200
After:
Code:
100 200 300 NA 500
220 NA 100 500 600
700 NA 900 100 200
Any idea what happened? what is the right command to use here?
Hi all,
I play audio through the web browser and it plays ok on windows. When i try the same thing on unix i get the error message "sh: /usr/local/bin/sox: not found. I've tried 'locate sox' and can't seem to find it. Is there some way I can change the browser settings so they play the audio... (3 Replies)
Hey everyone! I'm trying to retrieve old files from my Xenix computers. So the option I've now come down to is to load up a second harddrive and do a doscp of my tar'd backup file. Now, How do I go about this? I am not a unix user myself so I'm not quite sure. I need help! I have a VERY short... (1 Reply)
Okay, title is kind of confusion, but basically, I have a lot of scripts on a server that I need to replace a ps command, however, the new ps command I'm trying to replace the current one with pipes to sed at one point. So now I am attempting to create another script that replaces that line.
... (1 Reply)
If "photopia.dat" is a game. To play it, you would normally type "frotz photopia.dat" (assuming you are in the directory where photopia.dat resides).
But what if I'm in my home directory, photopia.dat is in the "games" directory, and I want to play it without switching directories? What command... (2 Replies)
I'd like to capture the audio playing in itunes (OSX) to a file (from the command line).
I currently use Wiretap Pro, but i'd like a non-gui. I tried installing sox, but after installing about 40-50 dependencies it crashed out. I do have ffmpeg working and I am pretty sure it can capture what's... (0 Replies)
I am having a lot of trouble, wasting a lot of time trying to get sed script files to run without problem. I have a list of scripts I want to run on a text file to turn it into a viewable html file for my mobile phone. Each of the single scripts when run in order/sequence one after another on the... (4 Replies)
This is my crontab:
MAILTO=""
# m h dom mon dow command
# Check to see if the fridge door has been left open
* * * * * fridgedoor
#Get temperature readings from fridge and save to monthly file in Downloads
30 0,4,8,12,16,20 * * * fridge
40 0 * * * sendfridge
* * * * *... (2 Replies)
Can someone help me of doing something like this
send.sh
#!/bin/bash
for last; do true; done
echo $* | gammu sendsms TEXT $last
every thing is good except that when i launch the script like this
./send.sh This is the message i want to send +63922XXXXXXX
it turned out the message of... (2 Replies)
Hi,
I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :-
./sample.sh: line... (12 Replies)
Discussion started by: satishmallidi
12 Replies
LEARN ABOUT OSX
cexpl
CEXP(3) BSD Library Functions Manual CEXP(3)NAME
cexp -- complex exponential function
SYNOPSIS
#include <complex.h>
double complex
cexp(double complex z);
long double complex
cexpl(long double complex z);
float complex
cexpf(float complex z);
DESCRIPTION
cexp(z) returns the complex exponential of z.
cexp(conj(z)) = conj(cexp(z)), for all complex floating-point numbers z.
SPECIAL VALUES
The conjugate symmetry of cexp() is used to abbreviate the specification of special values.
cexp(+-0 + 0i) returns 1 + 0i.
cexp(x + inf i) returns NaN + NaN i, and raises the invalid flag, for finite x.
cexp(x + NaN i) returns NaN + NaN i, for finite x.
cexp(inf + 0i) returns inf + 0i.
For the following two cases, cis(y) denotes cos(y) + I*sin(y).
cexp(-inf + yi) returns 0*cis(y), for finite y.
cexp(inf + yi) returns inf*cis(y), for finite nonzero y.
cexp(-inf + inf i) returns -0 + 0i.
cexp(inf + inf i) returns -inf + NaN i, and raises the invalid flag.
cexp(-inf + NaN i) returns -0 + 0i.
cexp(inf + NaN i) returns -inf + NaN i.
cexp(NaN + 0i) returns NaN + 0i.
cexp(NaN + yi) returns NaN + NaN i for all nonzero numbers y.
cexp(NaN + NaN i) returns NaN + NaN i.
SEE ALSO exp(3)clog(3)complex(3)STANDARDS
The cexp() function conforms to ISO/IEC 9899:2011.
4th Berkeley Distribution December 11, 2006 4th Berkeley Distribution
11-14-2012
sed command playing with me!
