I was trying to accomplish something
like this,
but TeX gives me an error in french, which says something about "a clue not being a full number" and I don't know what to do. No solutions in previous posts seemed to work. I can't paste all of 114 lines of my code here, so I'll just paste what I've tried:
\begin{equation*}
\systeme{m_2\left(v_{2p}^2-v_{2f}^2\right) = m_1v_{1f}^2, m_2\left(v_{2p}-v_{2f}\right) = m_1v_{1f}}
\end{equation*}
I am using the systeme package.
You can use \prime for ' in latex equations
I modified the code as follows:
$ m_1\left(v-v_{1}^\prime \right) = m_2v_{2}^\prime $
$ m_1\left(v^2-v_{1}^\prime2 \right) = m_2v_{2}^\prime2 $
You can use begin equation and end equation as well:
\begin{equation}
m_1\left(v-v_{1}^\prime \right) = m_2v_{2}^\prime
m_1\left(v^2-v_{1}^{2}\prime \right) = m_2v_{2}^{2}\prime
\end{equation}
Related
I want to convert my pdf files to txt files and used pdfminer3k module & pdf2txt.py, however, I got an error.
pdf2txt.py -o file.txt -t tag file.pdf
This is my code at cmd screen.
Traceback (most recent call last):
File "C:\Python36\lib\site.py", line 67, in
import os
File "C:\Python36\lib\os.py", line 409
yield from walk(new_path, topdown, onerror, followlinks)
^
SyntaxError: invalid syntax
This is an error message that I got.
Could you help me to fix this problem??
Added for reference: Great resourse:
http://www.degeneratestate.org/posts/2016/Jun/15/extracting-tabular-data-from-pdfs/
The -t flag is the type of output. The options are text, tag, xml, and html.
Tag refers to generating a tag for xml. Replace tag with text in your command and try it.
The order of optional input also matters.
You also must invoke python, your command line does'nt know what import means, yet some of your environment seems to be setup. My example is for windows cmd from Anaconda3\Scripts directory. If your in juptyer notebook or a console, you should be able to run import pdf2txt with the .py
To setup your environment you need to append the os.path.append(yourpdfdirectory) otherwise file.pdf will not be found.
Try python pdf2txt.py -t text -o file.txt file.pdf
Or if you are brave...this is how to do programmatically. The trouble with xml is if you want to get the text, each character from xml tree is returned in an arbitrary order. You can get it to work but you need to build the string character by character which is not that hard, its just logically time consuming.
fp = open(filesin,'rb')
parser = PDFParser(fp)
doc = PDFDocument()
parser.set_document(doc)
doc.set_parser(parser)
doc.initialize('')
rsrcmgr = PDFResourceManager(caching=False)
laparams = LAParams(all_texts=True)
laparams.boxes_flow = -0.2
laparams.paragraph_indent = 0.2
laparams.detect_vertical = False
#laparams.heuristic_word_margin = 0.03
laparams.word_margin = 0.2
laparams.line_margin = 0.3
outfp = open(filesin+".out.tag" ,'wb')
device = PDFPageAggregator(rsrcmgr, laparams=laparams)
interpreter = PDFPageInterpreter(rsrcmgr, device)
#process_pdf(rsrcmgr, device, pdfparse, pagenos,caching=c, check_extractable=True)
for p,page in enumerate(doc.get_pages()):
if p == 0: #temporary for page 1
interpreter.process_page(page)
layout = device.get_result()
alltextinbox = ''
#This is a rich environment so categorization of this object hierarchy is needed
for c,lt_obj in enumerate(layout):
#print(type(lt_obj),"This is type ",c,"th object on the ",p,"th page")
if isinstance(lt_obj,LTTextBoxHorizontal) or isinstance(lt_obj,LTTextBox) or isinstance(lt_obj,LTTextLine):
print("Type ,",type(lt_obj)," and text ..",lt_obj.get_text())
obj_textbox_line.update({lt_obj:lt_obj.get_text()})
elif p != 0:
pass
fp.close()
#print(obj_textbox_line)
#call the column finder here
#check_matching("example", "example1")
#text_doc_df = pd.DataFrame(obj_textbox_line,columns=['text'])
#print (text_doc_df)
pass
I'm working on a generic row/column matcher. If you don't want to bother, you can buy this software already for like 150 bucks for a pro converter.
I'm currently running a code and I'm always getting to the same end. I am trying to read an input file and it returns the error:
Fortran runtime error: End of file
In an other post they said to put in the iostat specifier so now my code looks like this:
INTEGER :: m
INTEGER :: st
Open(Unit = 13,action='read',file='Data_Inp.dat',status='old')
read (13,*, iostat = st) m
write (*,*) st
write (*,*) m
ALLOCATE(winkel(m),energie(m))
Do i = 1,m
read(13,*),winkel(i),energie(i)
End Do
And the input file looks like this:
12
-17.83 -0.019386527878
-15.83 -0.020125057233
-12.83 -0.020653853148
-11.83 -0.020840036028
-9.83 -0.020974157405
-8.83 -0.021056401707
-6.83 -0.021065517811
-5.83 -0.020992571816
-4.83 -0.020867828448
-1.83 -0.02069158012
Now the terminal prints a -1 for iostat and a constantly changing number for m.
If the first read command is causing an error, check for extraneous characters before or after "12" in your input file, especially if you created it on one platform (Windows?) and using it on another platform (Linux? Mac?)
I am in the process of using the GenABEL package of R studio to convert the output of the Affymetrix Genotyping Console into a .tfam file. This is my code thus far:
rm(list = ls())
setwd("C:/U/Is/GD/Affymetrix")
library("GenABEL", lib.loc="C:/PROGRA~1/R/R-211~1.1-X/library")
read.table("Genotyping_results.txt", fill = TRUE)
convert.snp.affymetrix(dir = "C:/U/Is/GD/Affymetrix", map = "Genotyping_results.txt" , outfile ="Genotyping_results.tfam")
I am getting the following error:
"Error in system(command, intern = T) : 'ls' not found".
I have a limited understanding of programming and am finding it difficult to understand what is wrong or how I can solve it.
Any help would be greatly appreciated
You mentioned in the comments that you're using Windows. ls is not a command on your OS.
ls is a command in Linux and in R.
There are many ways to add that command to Windows, like Cygwin.
I'm writing a short script in Lua to replicate Search/Replace functionality. The goal is to enter a search term and a replacement term, and it will comb through all the files of a given extension (not input-determined yet) and replace the Search term with the Replacement term.
Everything seems to do what it's supposed to, except the files are not actually written to. My Lua interpreter (compiled by myself in Pelles-C) does not throw any errors or exit abnormally; the script completes as if it worked.
At first I didn't have i:flush(), but I added it after reading that it is supposed to save any written data to the file (see LUA docs). It didn't change anything, and files are still not written to.
I think it might have something to do with how I'm opening the file to edit it, since the "w" option works (but overwrites everything in my test files).
Source:
io.write("Enter your search term:")
term = io.read()
io.write("Enter your replace term:")
replacement = io.read()
io.stdin:read()
t = {}
for z in io.popen('dir /b /a-d'):lines() do
if string.match(string.lower(z), "%.txt$") then
print(z)
table.insert(t, z)
end
end
print("Second loop")
for _, w in pairs(t) do
print(w)
i = io.open(w, "r+")
print(i)
--i:seek("set", 6)
--i:write("cheese")
--i:flush()
for y in i:lines() do
print(y)
p, count = string.gsub(y, term, replacement, 1)
print(p)
i:write(p)
i:flush()
io.stdin:read()
end
i:close()
end
This is the output I get (which is what I want to happen), but in reality isn't being written to the file:
There was one time where it wrote output to a file, but it only output to one file and after that write my script crashed with the message: No error. The line number was at the for y in i:lines() do line, but I don't know why it broke there. I've noticed file:lines() will break if the file itself has nothing in it and give an odd/gibberish error, but there are things in my text files.
Edit1
I tried do this in my for loop:
for y in i:lines() do
print(y)
p, count = string.gsub(y, term, replacement, 1)
print(p)
i:write(p)
i:seek("set", 3) --New
i:write("TESTESTTEST") --New
i:flush()
io.stdin:read()
end
in order to see if I could force it to write regular text. It does but then it crashes with No error and still doesn't write the replacement string (just TESTESTTEST). I don't know what the problem could be.
I guess, one can't write to file while traversing its lines
for y in i:lines() do
i:write(p)
i:flush()
end
I use a custom function (currently residing in .vimrc) and not :make or another direct command line tool to compile/check my currently edited file for errors. Like this:
function! CompileMyCode(...)
set errorformat=Error:\ %m\\,\ in\ line\ %l
let l:output = "Error: bad code!, in line 9"
return l:output
endfunction
command! -nargs=* CompileMyCode :call CompileMyCode(<f-args>)
when using the new command in command mode, no error window shows up.
:CompileMyCode | cwindow
What am I doing wrong?
Edit:
I now tried the following which also does not open any cwindow.
function! CompileMyCode(...)
set errorformat=Error:\ %m\\,\ in\ line\ %l
let l:output = "Error: bad code!, in line 9"
" I tried both of the following lines separately
cexpr l:output
call setqflist([l:output])
endfunction
The proposed commands cexpr and setqflist() do not open the cwindow correctly in my example. Maybe somebody can propose a complete solution?
Edit 2:
The main problem is solved. Here is my current code:
let l:result = expand("%").'|8| errortext'
cexpr [ l:result, l:result ]
caddexpr ''
cwindow
This example respects a default error format that vim seems to support. When cexpring the actual error output and using an errorformat the cwindow seems to ignore that.
Nevertheless, I wanted stick to a default error format anyway in the output, not having to rely on a custom errorformat
Thx for your answers!
I did something similar using cexpr l:output instead of returning the string and that placed the output of the compile in the quickfix window. You can see my vim function here: http://www.zenskg.net/wordpress/?p=199
Update
Adding a blank line to the quickfix list seems to allow the cwindow to appear. For example:
function! MyCompile()
let l:output = "Error: line 1"
cexpr l:output
caddexpr ""
cwindow
endfunction
If you already have access to the error information as structured data in Vim (or can easily obtain it), you can use setqflist().