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 am using cosine function from Package(lsa) from R called in unix but I am facing problems with it
if these files had only one row per file I can calculate the cosine similarity as following
but facing problems reading lines of two files into Vectors to do the same
I have tried to write a code, it does not give any error but does not create anything and I dont know what I am doing wrong --- (new to R)
Code:
con <- file('data01.txt', open="r")
con2 <- file('data02.txt', open="r")
a <- list();
b <- list();
test <- list();
current.line01 <- 1
current.line02 <- 1
while (length(data01 <- readLines(con, n = 10, warn = FALSE)) > 0) {
while (length(data02 <- readLines(con2, n = 10, warn = FALSE)) > 0) {
a[[current.line01]]<- c(data01)
b[[current.line02]]<- c(data02)
test <-cosine(a[[current.line01]], b[[current.line02]])
write.table(test , "test.txt")
current.line01 <- current.line + 1
current.line02 <- current.line + 1
}
}
close(con)
close(con2)
in win32 platform, i can easily find some GUI based ftp application like cuteFtp, WsFtp and etc which provides GUI + resuming download.
pls recommend me some similar application which runs on Sun Solaris sparc 8.
hopefully it is free.
thank you very much. (1 Reply)
Hi, I have done this year ago, and now I need to do it again, but did not remember how I do it. I have a slip printer on a windows xp workstation and i need to print from SCO unix application to that printer. I try to create a remote printer but the only option available is unix, the other to... (0 Replies)
hi all,
iam using unix command in the basesas programming.
i need to delete one folder which is dynamically creating when SAS script runs.
rm -rf " dynamic foldername"
iam not able to delete the folder it is saying
rm: cannot remove directory `test_lin_prod_06_20091211_0516':... (2 Replies)
Input_file
data1 USA 100 ASE
data3 UK 20 GWQR
data4 Brazil 40 QWE
data2 Scotland 60 THWE
data5 USA 40 QWERR
Reference_file
USA 12312 34532
1324 Brazil 23321
231 3421 Scotland
342 34235 UK
231 141 England... (1 Reply)
I really need help in this :(
I have a file and would like to calculate the cosine similarity of the values in it...
For now I do use R which has an easy function for doing so
test <- as.matrix(read.csv(file="file.csv", sep=",", header=FALSE))
result<- cosine(t(test))
I am using unix of... (3 Replies)
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)
Hi All,
we have a requirement to split a content in a text file every 5 rows and write in a new file .
conditions:
if 5th line falls between center of the statement . it should look upto after ";"
files are below format:
1 UPDATE TABLE TEST1 SET VALUE ='AFDASDFAS'
2 WHERE... (3 Replies)
Discussion started by: KK230689
3 Replies
LEARN ABOUT DEBIAN
mcxmap
mcxmap(1) USER COMMANDS mcxmap(1)
NAME
mcxmap - permute or remap the indices of graphs and matrices.
SYNOPSIS
mcxmap -imx fname (input) [-o fname (output)] [-make-map (output map file name)] [-make-mapc (output map file name)] [-make-mapr (output map
file name)] [-cmul a (coefficient)] [-cshift b (translate)] [-rmul c (coefficient)] [-rshift d (translate)] [-mul e (coefficient)] [-shift f
(translate)] [-map fname (row/col map file)] [-rmap fname (row map file)] [-cmap fname (column map file)] [-mapi fname (row/col map file
(use inverse))] [-rmapi fname (row map file (use inverse))] [-cmapi fname (column map file (use inverse))] [-tab fname (read (and map) tab
file)]
DESCRIPTION
This utility relabels graphs or matrices. Its main use is in applying a map file to a given matrix or graph. A map file contains a so called
map matrix in mcl format that has some special properties (given further below). The functionality of mcxmap can also be provided by mcx, as
a mapped matrix (i.e. the result of applying a map matrix to another matrix) is simply the usual matrix product of a matrix and a map
matrix. However, mcx will construct a new matrix and leave the original matrix to be mapped alone. When dealing with huge matrices, consid-
erable gains in efficiency memory-wise and time-wise can be achieved by doing the mapping in-place. This is what mcxmap does. In the
future, its functionality may be embedded in mcx with new mcx operators.
The special properties of a map matrix are
o The column domain and row domain are of the same cardinality.
o Each column has exactly one entry.
o Each row domain index occurs in exactly one column.
These properties imply that the matrix can be used as a map from the column domain onto the row domain. An example map matrix is found in
the EXAMPLES Section.
OPTIONS
-o fname (output file)
Output file.
-imx fname (input file)
Input file.
-map fname (row/col map file))
-rmap fname (row map file)
-cmap fname (column map file)
-mapi fname (row/col map file (use inverse))
-rmapi fname (row map fil (use inverse))
-cmapi fname (column map fil (use inverse))
Different ways to specify map files.
-make-map (output map file name)
-make-mapc (output map file name)
-make-mapr (output map file name)
Generate a map that maps the specified domain onto the appropriate canonical domain and write the map matrix to file.
-cmul a (coefficient)
-cshift b (translate)
These options have affect if neither a column map file nor column canonification is specified. If any of the first two options is used,
column indices i are mapped to a*i+b.
-rmul c (coefficient)
-rshift d (translate)
These options have affect if neither a row map file nor row canonification is specified. If any of the first two options is used,
indices i are mapped to c*i+d.
-mul e (coefficient)
-shift f (translate)
If a map file is specified for a given domain, neither a map file nor canonification is specified. If any of the first two options is
used, the indices i will be mapped to e*i+f.
-tab fname (read (and map) tab file)
This option requires the -map option. mcxmap will output the mapped tab definition.
EXAMPLES
The matrix below has two canonical domains which are identical. It denotes a map of the canonical domain onto itself, in which node 0 is
relabeled to 8, node 1 is relabeled to 5, et cetera.
(mclheader
mcltype matrix
dimensions 12x12
)
(mclmatrix
begin
0 8 $
1 5 $
2 3 $
3 2 $
4 4 $
5 6 $
6 7 $
7 9 $
8 1 $
9 10 $
10 11 $
11 0 $
)
AUTHOR
Stijn van Dongen.
SEE ALSO
mcxio(5), mcx(1), mcxsubs(1), and mclfamily(7) for an overview of all the documentation and the utilities in the mcl family.
mcxmap 12-068 8 Mar 2012 mcxmap(1)
02-21-2013
