Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Multiplication of two matrices
Top Forums UNIX for Dummies Questions & Answers Multiplication of two matrices Post 302967266 by Don Cragun on Monday 22nd of February 2016 03:39:33 AM
Old 02-22-2016
I'm having trouble understanding your example.

In File1 we are using data from columns with headings:
Code:
ID2 M11_A M12_A

and multiplying values in those columns with data from rows with the data in the 1st two columns containing the data:
Code:
M11 A
M12 B

and producing output with the headings:
Code:
ID2 M1_A M2_A

Why are all three of these sets of names different? I can understand if you're saying we should completely ignore the 1st two columns in File2, but I'm not sure that I understand the transformation that you want to happen when moving headings from File1 to your output file. Is it just that 2nd character of each of the headings (except ID2) copied from File1 are to be deleted when printing the headings in the output file? Why are the headings for the fields used in File1 copied to the output file unchanged (like RudiC did in his suggestion)?
 

10 More Discussions You Might Find Interesting

1. Linux

Multiplication with Fractions

Hello there, how do i multiply a fraction and a whole number? Example 20% of 50,000. I had gotten 0.2 using the following: chk=echo 20 100 | awk `{print $1/$2}` echo $chk $chk \* 50000 displays the error: non-numeric expression. (1 Reply)
Discussion started by: alby
1 Replies

2. Shell Programming and Scripting

using awk multiplication

Suppose i have a file A 1*2*3*4 2*4*4*22 and second file B 2*3*4*5 4*4*6*7 By multiplying file A by file B that is file A by first column in file B respectively output shud be 2*6*12*20 8*16*24*154 my code is =$1 next } {for (f=1;f<=NF;f++) (2 Replies)
Discussion started by: cdfd123
2 Replies

3. UNIX for Dummies Questions & Answers

Exact Multiplication

Hi, I am writing a script in Bourne shell #!/bin/sh used=`quota -v | tail -1 | awk '{print $2}'` total=`quota -v | tail -1 | awk '{print $3}'` echo "$used" echo "$total" perc=`expr ${used} / ${total} * 100 | bc` echo "$perc" I want to get a percentage of quota used to total limit I... (5 Replies)
Discussion started by: desai.rishabh
5 Replies

4. UNIX for Dummies Questions & Answers

Multiplication using bc in a for loop

Hi, I would like to carry out a multiplication in a for loop but some how I get always zero. The result of the multiplication must be assigned to the variable x. Here is teh code for (( i=1;i<=15;i++)); do x=$( printf "%s\n " 'scale = 10; i*5.0*335.0*3.0/1000.0' | bc) echo $x $i... (5 Replies)
Discussion started by: f_o_555
5 Replies

5. Programming

C multiplication with GCC

Hi all, newbie here. Does anyone know if it is possible to use GCC or Clang to multiply two unsigned numbers and have it use for intel instructions, the mull instruction or an imul. I can't figure how to word this to accomplish this task: (int)(((unsigned long long)result * (unsigned)2290649225)... (4 Replies)
Discussion started by: pheonix
4 Replies

6. UNIX for Advanced & Expert Users

Vector base Cosine Similarity for two Matrices -- R in UNIX

Dear All, I am facing a problem and I would be Thankful if you can help Hope this is the right place to ask this question I have two matrices of (row=10, col=3) and I want to get the cosine similarity between two lines (vectors) of each file --> the result should be (10,1) of cosine measures I... (10 Replies)
Discussion started by: A-V
10 Replies

7. Shell Programming and Scripting

Multiplication of array elements

Hi, I can't find out how to create correct code to get multiplication of each elements of array. Let's say I enter array into command line (2 3 4 5 6 8) and i need output 2*3*4*5*6*8=5760. I tried this one, but answer is 0. for i in $@; do mult=$((mult*i))done echo "mult: " $mult ... (4 Replies)
Discussion started by: rimasbimas
4 Replies

8. UNIX for Dummies Questions & Answers

Merge matrices

Hello all, I have square matrices that look like the following, I want to merge these matrices together, and add the file names as headers. This is a simple example with two variables, actually I have ~1500 variables and 10 files. The order of variables in the matrices are consistent. Please... (2 Replies)
Discussion started by: senhia83
2 Replies

9. UNIX for Beginners Questions & Answers

Matrix multiplication

I have two files. Row id in File1 matches the column id in file2 (starting from column7 )except the last 2 characters. File1 has 50 rows and File 2 has 56 columns. If the id matches I want to multiply the value in column3 of File1 to the entire column in File2. and in the final output print only... (11 Replies)
Discussion started by: Akang
11 Replies

10. Homework & Coursework Questions

Multiplication Table in UNIX

How can I produce this kind of output? Enter a number: 3 MULTIPLICATION TABLE: 0 1 2 3 1 1 2 3 2 2 4 6 3 3 6 9 When you enter a number, it should show you the corresponding multiplication table. Plus we need to use for loops that I do not actually know. Thanks in advance! Here is my... (2 Replies)
Discussion started by: larkha
2 Replies

LEARN ABOUT SUSE

set_color

set_color(1)                                                           fish                                                           set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1                                                    Sun Jan 8 2012                                                      set_color(1)
All times are GMT -4. The time now is 11:19 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy