{loops} is about looping constructs which allow a programmer to apply the same operation multiple times, each time with possibly different parameters.

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2answers
440 views

How to detect a blank line inserted by TeX when reading an external file line by line?

I want to make a macro to import all TeX input files in a directory in which the input file containing the macro exists. When reading an external file, TeX appends a blank line to the last iteration. ...
2
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3answers
631 views

How to get rid of these excessive rules?

\documentclass{article}%cannot be minimal \usepackage{longtable} \usepackage{ifthen, xspace} \newcounter{xyz} \setcounter{xyz}{1} \def\and{&\xspace} \begin{document} ...
2
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2answers
224 views

Insert loop inside table?

1- I want to make a table with n number of rows ? my wrong code \newcommand{\xx}{ \begin{tabular}{|c|c|c|} \hline \newcount\fooo \fooo=10 \loop 11 & 12 & 13\\ \hline \advance \fooo ...
2
votes
1answer
105 views

Conditional assignment in a loop

Objective: I want to compile the temporary.tex file containing PSTricks code twice. One with -jobname=Rotated and the other one with -jobname=Unrotated. The resulting Rotated.ps will be passed to ...
2
votes
1answer
249 views

How to insert N images using TikZ's \foreach?

I'd like to avoid having to copy & paste the same code 50 times in my input file, so I'm trying to use the automation offered by TikZ's \foreach. I do not know why this code generates 101 errors. ...
2
votes
2answers
194 views

What is the correct way to generate notation for a finite set using for loop in Latex?

I am trying to create a command that will take an index n as a parameter, and generate the the expanded form of this {a_1, a_2, a_3,...,a_n}. For my first attempt, I tried to use the syntax suggested ...
2
votes
2answers
337 views

What makes a loop inside \IfFileExists fail?

The following MWE is the simplified version of my project. But it is complete enough to produce the problem. If you disable (comment) the looping parts, compilation succeed. Otherwise you will get ...
2
votes
1answer
182 views

Use array in loop in tikz

In general: I need to retrieve values from an array to submit those values as indices to a function. More specific: I want to create figures, which contain subfigures. These subfigures are loaded ...
2
votes
1answer
145 views

LaTeX: Different spaces when using readarray, whiledo and value

The answer of the following problem is given in Ulrikes Comment. Thank you very much! I am trying to use external data for similar documents I have to write. The number of these data varies so I ...
2
votes
2answers
394 views

TikZ: drawing an evolution of an ellipse to a hyperbola with the same focus

Is there a high speed way to draw the evolution of an ellipse, to a parabola, and then into a few hyperbolas with the same focus? From the picture, we see that we start out with three elliptical ...
2
votes
1answer
145 views

dynamic for loop

I'm trying to create a dynamic for loop: \def\forinmacro{{a,b,c,d}} \iftb{SomeBool}{\def\forinmacro{{a}}} \foreach \m in \forinmacro {...} Note if I change the last line to \foreach \m in ...
2
votes
2answers
841 views

pgfplots: setlength inside foreach

I have the following code, where the size of the cube marks is set to \x inside a foreach loop: \begin{tikzpicture} \begin{axis}[axis lines=none] \newlength{\mylen} \foreach \x in {1,2,...,10} ...
2
votes
2answers
79 views

Strange extra line after forloop in a tabular table

I'm trying to generate table lines (tabular environment) with forloop macro. I've got strange extra line after forloop. \documentclass {article} \usepackage [utf8] {inputenc} \usepackage [english] ...
2
votes
1answer
736 views

using foreach to draw a chain with a branch

This is an extension to How to draw the border of a node using late options I'm drawing a chain of nodes with different colors using foreach from tikz. Now I want to add a branch, also using foreach. ...
2
votes
1answer
52 views

Frontispiece for thesis UK

I am writing the title page of my thesis, but the frontispizo package described elsewhere on this website doesn't really suit my needs. I am sure the frontispiece I require below can be easily ...
2
votes
3answers
76 views

Concatenating commands with arguments in a macro?

I want to read some lines from a text file, wrap a "style" which in this case is \texttt around each line, and as such concatenate it to a macro that I can use in the document. I came up with this ...
2
votes
1answer
73 views

How to iterate a list of colors with two additional counters more elegantly?

A part of my code (especially iterating a list of colors with 2 additional counters) below does not seem straightforward. \documentclass[pstricks,border=12pt,dvipsnames]{standalone} ...
2
votes
1answer
66 views

Does \foreach \x in {1,2,3…} have a limit for the {1,2…} number of elements?

I have the following code which prints some images labelled by _{1,3,5...,37}.png. The following code works just fine. \usepackage{tikz} \foreach \x in {1,3,5,7,9,11,13,15,17,19,21,23,25} { ...
2
votes
1answer
329 views

Dynamic table column generation

I'm trying hard in finding a way to streamline my table generation. As you can see in the attached code, the problem is related with the code "\@for \el:=#1\do{\textbf{\el} &}", where "&" ...
2
votes
1answer
627 views

conditional inside a pgfplotsinvokeforeach loop

I'm using \pgfplotsinvokeforeach to do mathematical computations inside the \addplot options. Now I need a conditional to decide whether to plot a line or not depending on the current index of the ...
2
votes
1answer
366 views

looping in tabular

I am curious to know why the following failed. A similar thread is on comp.text.tex unanswered. Of course, other manipulations of \whileexpr work, but why does this fail? \documentclass{article} ...
2
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1answer
65 views

How to make Loop?

I need to make for loop analog in LaTeX. My code has following form \documentclass[9pt]{article} \usepackage{tikz} \usepackage{pgfplots} \begin{document} \begin{tikzpicture}[scale=1.2, font=\tiny] ...
2
votes
1answer
119 views

Iterate over pages and set variable

I am looking for a way to take the output of a pageref, iterating through, and assigning a property to each of those pages. Specifically, I want to take this: \documentclass{article} ...
2
votes
2answers
178 views

Undefined Control Sequence \For, \state, or \EndFor

I want to write this algorithm but the error Undefined Control Sequence \For, \state, or \EndFor pops up. \documentclass[titlepage,oneside,12pt]{article} \usepackage[]{algorithm2e,algpseudocode} ...
2
votes
1answer
336 views

How to loop over R objects OUT OF chunks

I want to typeset with TeX a report based on data from an R object (dataframe). The idea is to print a nice TeX table from each line of a R dataframe. Something like \begin{tabular}{ l c r } A1 ...
2
votes
1answer
157 views

Shuffle numbers in a loop

I want to have a document, where the exact same page will be printed for a certain number of pages and on every page there should be a unique number. I know how to do so with a loop, but I don't ...
2
votes
1answer
193 views

Compare two comma separated lists

Hi I would like to compare two comma separated lists. \documentclass[a4paper]{article} \usepackage{comment} \usepackage{ifthen} \usepackage{xargs} \usepackage{xkeyval} \usepackage{xfor} ...
2
votes
1answer
460 views

Place symbols/nodes at intersection between an arc and some horizontal lines with \foreach in TikZ

I'd like to place an symbol I've defined at all the intersection point between an arc and some horizontal lines: I know how to use \foreach for other cases, but I'm really not sure how to setup the ...
2
votes
3answers
250 views

Process Last Item in \ForEach (forarray package)

The following command of the forarray package \ForEach{,}{\thislevelitem(\the\thislevelcount) : }}{x,y,z} produces the output x(1) : y(2) : z(3) : I want to have the same output without the last ...
2
votes
0answers
60 views

Why this loop with “evaluate” does not work?

\documentclass[margin=5pt]{standalone} \usepackage{tikz} \usetikzlibrary{shapes,calc} \begin{document} \begin{tikzpicture} \foreach \x [evaluate=\x as \name using \x*20] in{0,0.05,0.1,0.15,...,5} ...
2
votes
1answer
94 views

Programmatically expand my image in TikZ

I've got an image made of a number of slowly expanding arcs. Now I want to add another 10 wedges, over the same total angle (so each arc will be ~14ยบ). I'm trying to use the following code, but I'm ...
2
votes
0answers
155 views

Passing an array type argument for new command

I've looked around and can't seem to find anywhere, but I was wondering if there is somewhere you can do something like the following: \newcommand{\loopy}[1]{ \begin{tikzpicture} \foreach ...
2
votes
0answers
57 views

Using a for loop to loop through sequentially named tex files [closed]

I'd like to loop through all .tex files in a directory using code that looks like the following: \documentclass{article} \usepackage[hmargin=1cm,vmargin=1cm]{geometry} \usepackage{pdflscape} ...
1
vote
2answers
20 views

Loop over a list with delimiter different from comma

I am trying to iterate over a list, the delimiter of which is not a comma. The reason for not using commas as delimiters is that they are part of the payload. Is there a way to iterate over a list in ...
1
vote
1answer
57 views

Centering a table of images

I'm trying to center a table of images; 2 images per table row. Right now the code I have is ugly, and doesn't center on the document. I've tried using \begin{center} and \centering without any luck. ...
1
vote
1answer
205 views

Looping and linking with TikZ

How would you build a grid using a nested foreach, defining one node for each iteration? If I were coding in Python, I would write: nodes = {} for i in range(10): for j in range(5): ...
1
vote
2answers
43 views

Converting a number into a character and then using it in a filename

I am trying to create a loop that will print out a list of image files. All of these image files have a filename like this: fa-x.jpg (where x is a character from a - h). I've made a loop, but the ...
1
vote
1answer
1k views

How do I add parfor in algorithmic environment?

I want to have a parfor loop in my algorithm listing (it should work exactly as standard for loop works). How to either change the displayed name of for loop or add my own loop which will keep the ...
1
vote
1answer
95 views

\pgfdeclareshape: how to define anchors in a loop?

I think my question is quite similar to this and this, however I didn't manage to modify the provided solutions to fit my problem. In the following MWE I am trying to define 8 pin anchors in a ...
1
vote
1answer
128 views

Loop through table for boxplot prepared

I am trying to produce figure with 2 boxplot prepared plots from an inline data file. I grabbed this code from here to use as a starting point. Given that the wrapper code allows the boxplot data to ...
1
vote
0answers
52 views

dynamically generating tabular columns

Consider a table (regular tabular environment) with a fixed number of columns. I want to create a command that accepts a comma-separated list of strings, where the number of strings may differ between ...
1
vote
0answers
99 views

array and loop to set frametitle, subsection, and text

In the example below, I store text into three variables (\subTa, \subTb, \subTc), and then use these variables to set the subsection, set the frametitle, and display text on each slide, all using ...
1
vote
0answers
44 views

Label of figure in a for loop

I am adding figures to my TeX file using the following code: \foreach \paramA in {a,b,c} { \foreach \paramB in {1,2,3} { \begin{figure} \addOneImage{pathToImage/imageName_\paramA_batch\paramB.png} ...
1
vote
0answers
49 views

Loop to include multiple files [duplicate]

Possible Duplicate: How to iterate through the name of files in a folder I would like to include all the *.tex files from a directory in a document. To avoid me having to add manually the ...
1
vote
0answers
457 views

Generate trees based on number of nodes and children allowed [closed]

I am doing an experiment, and would like to generate images of Binary Trees and Exponential Trees using LaTeX. The difference between these two structures is the number of children allowed per node ...
0
votes
1answer
39 views

Forloop macro does not work with other macro in condtion

This is my primative code: \documentclass{article} \usepackage{xstring} \usepackage{ifthen} \usepackage{pgfkeys} \newcommand{\setvalue}[1]{\pgfkeys{/variables, #1}} ...
0
votes
1answer
87 views

exsheet print several exams same document

How to print several exams in the same document using exsheets? I need to print several exams using \includequestions[random=1]{easy} \includequestions[random=1]{medium} ...
0
votes
2answers
327 views

Environment with customizable number of table columns

I want to make macros for drawing group of questions with same answers with customizable text, number of answers and design (column widths, alignment, etc.), like this: ...
0
votes
0answers
24 views

How to cite this in revtex4-1?

I have trouble to achieve the following citation style: Tam, K. C. , M. L. Farmer , R. D. Jenkins , and D. R. Bassett It's not standard APA or MLA styles.
0
votes
0answers
29 views

How to load input file with given starting string but unknown end?

In the directory of my latex source there are input files: input_01.tex, input_02.tex, etc. It is very easy to load them with a for cycle. But how to load them if their names are: ...