12-14-2010
Calculating cumulative frequency
Hi,
I have a file containing the frequency's of an element sorted in ascending order. The file looks something like this:
#Element Frequency
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 10
9 15
10 20
What I want is to calculate and print the cumulative frequency (adding the current frequency to the sum of the previous frequency's) with the existing data. So the
output file should look like this:
#Element Frequency Cumulative Frequency
1 1 1
2 1 2
3 1 3
4 1 4
5 1 5
6 1 6
7 2 8
8 10 18
9 15 33
10 20 53
Thanks !!
8 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Input file:
#read_1
AWEAWQQRZZZQWQQWZ
#read_2
ZZAQWRQTWQQQWADSADZZZ
#read_3
POGZZZZZZADWRR
.
.
Desired output file:
#read_1 3
#read_1 1
#read_2 2
#read_2 3
#read_3 6
.
. (3 Replies)
Discussion started by: perl_beginner
3 Replies
2. Shell Programming and Scripting
Hi, I am working with files containing 2 columns in which i need to come up with the frequency/count of values in col. 2 falling within specifics binned values of col. 1. the contents of a sample file is shown below:
15 12.5
15 11.2
16 0.2
16 1.4
17 1.6
18 4.5
17 5.6
12 8.6
11 7.2
9 ... (13 Replies)
Discussion started by: ida1215
13 Replies
3. Shell Programming and Scripting
Hi All,
I have the following time stamp data in 2 columns
Date TimeStamp(also with milliseconds)
05/23/2012 08:30:11.250
05/23/2012 08:30:15.500
05/23/2012 08:31.15.500
.
.
etc
From this data I need the following output.
0.00( row1-row1 in seconds)
04.25( row2-row1 in... (5 Replies)
Discussion started by: ks_reddy
5 Replies
4. UNIX for Dummies Questions & Answers
Hi, I wanted to calculate cumulative frequency distribution of my data that involves several arithmetic calls. I did things in excel but its taking me forever. this is what I want to do:
var1.txt contains n observations which I have to compute for frequency which is given by 1/n and subsequently... (7 Replies)
Discussion started by: ida1215
7 Replies
5. Red Hat
I wanted to know the Red Hat Linux command for cumulative disk space usage and the free space as df -h gives used and free space individually for the drives. Or, a command to check free space on the server would also be fine.
I hope, my question is clear.
Please revert with the reply to my... (2 Replies)
Discussion started by: RHCE
2 Replies
6. Shell Programming and Scripting
Hello all,
I got some time duration data like below and I want to compute the cumulative elapsed time. The data is in MM:SS.SS format. I got struck with logic on what to do when it changes from 59:59.ss to 00:00.ss.
59:59.4
59:59.6
59:59.9
00:00.1
00:00.4
00:00.6
00:00.9
I need the... (5 Replies)
Discussion started by: ks_reddy
5 Replies
7. Shell Programming and Scripting
For the data
I would like to parse down and for each parsing
I want a cumulative averaging, stored in an array
that can be output.
I.e.
546/NR = 546
(546+344)/NR=(546+344)/2 = etc.
For N record input I want N values of the average (a block
averaging effectively)
Any... (3 Replies)
Discussion started by: chrisjorg
3 Replies
8. UNIX for Beginners Questions & Answers
I have a file has thousands of rows and each row has a number and the number can be positive or negative. I want to do the cumulative sum from the first row. How can I find out the maximum cumulative value when I do the sum work row by row. Here is the example:
4
-3
2
-3
-1
1In this case, the... (5 Replies)
Discussion started by: yuejian
5 Replies
LEARN ABOUT DEBIAN
gr_plot_fft
GR_PLOT_FFT(1) User Commands GR_PLOT_FFT(1)
NAME
gr_plot_fft - Frequency domain GNU Radio plotting
SYNOPSIS
gr_plot_fft: [options] input_filename
DESCRIPTION
Takes a GNU Radio complex binary file and displays the I&Q data versus time as well as the frequency domain (FFT) plot. The y-axis values
are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out
of the FFT is performed internally). The script plots a certain block of data at a time, specified on the command line as -B or --block.
This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the
file). By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time
and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples.
OPTIONS
-h, --help
show this help message and exit
-d DATA_TYPE, --data-type=DATA_TYPE
Specify the data type (complex64, float32, (u)int32, (u)int16, (u)int8) [default=complex64]
-B BLOCK, --block=BLOCK
Specify the block size [default=1000]
-s START, --start=START
Specify where to start in the file [default=0]
-R SAMPLE_RATE, --sample-rate=SAMPLE_RATE
Set the sampler rate of the data [default=1.0]
SEE ALSO
gr_plot_fft_c(1) gr_plot_fft_f(1)
gr_plot_fft 3.5 December 2011 GR_PLOT_FFT(1)