# Questions tagged [searching]

The tag has no usage guidance.

78 questions
69 views

### Subsequence Search

I need to parse some xml code. I need to extract some values withing pattern elements. I made an example of my trouble. Here is some complicated xml list: ...
107 views

### Find non-case sensitive string in a mixed list of elements?

Consider an example list with mixed element types, e.g.: list = { 1.234 , a[2] , {"Abc" , 4/5} , "acb" }; I would like to have a function that finds the position ...
174 views

277 views

### Searching for an unordered triple in a list of triples

I have a list of triples which looks like this T = {{7, 1, 2}, {7, 2, 3}, {7, 3, 8}, {7, 1, 6}}; (I have suppressed a few triples for clarity. My real list is ...
28 views

### Problem using Position when using a variable [closed]

So, I tried to use Position to get the Position of the 90% Maximum of a Photodiode Signal. The code works when i directly use the solution of the .9*Max[...] solution, but I want to have it with a ...
64 views

### Filling and transferring water between containers to obtain a desired volume

A classic class of math puzzles involves two irregular containers, $A$ and $B$, having known volumes $V_A$ and $V_B$ and an infinite source of water (from a spigot, say). You can fill either ...
72 views

### How to speed up a text search widget?

I have an InputField that searches a predefined list for matching strings and displays them in a TextGrid. But when the list is ...
213 views

### Using the binary search algorithm in a sorted grid

I want to get a mathematica code for binary search algorithm applied to a sorted grid containing integers. For example, given f[k_,x_]= x^2 + k x + k - 2 where <...
128 views

### How to cache results of WebImageSearch?

Every call to WebImageSearch costs money (wolfram service credits), thus, I would like to page through results without having to redownload them. Given the ...
43 views

### Looking for specific data in .txt file

I've the following code: Import["test.txt"] And it gives me: 1,10 2,20 3,30 4,40 5,50 6,60 7,70 8,80 9,90 10,100 11,110 12,120 13,130 14,140 15,...
30 views

### Searching in a .txt file for a specific time

I've the following code: Import["hoi1.txt"] And it gives me: "(time,voltage,current,power) (1,10,5,10*5) (2,20,6,20*6) (3,30,7,30*7) (4,40,8,40*8) (...
168 views

### How can one efficiently find the (x,y) values of the rectangles that enclose a chosen % of nonrandom data points in mathematica?

A half hour of searching for answers did not give useful results. This is typical data: I need to find the (x,y) values of at least 6 rectangles with one corner at (0,0) and the opposite corner at (...
3k views

### Determine whether some expression contains a given symbol

Given a symbol t and an expression expr, how can I determine whether or not the symbol t ...
497 views

### How to find a specific error message?

Is there a way to find an existing error message in the System` context, that is used for a certain case? I want to include a message in a custom function that ...
63 views

### Extracting names (surname & family name) from unstructured text files

This question is about finding names of people in a text without knowing these people. There are some rules we can use to detecting names in a text A name consist always of two or more words (...
797 views

### NotebookFind and String Pattern Expressions

Is there a way that NotebookFind can be used to match string pattern expressions rather than just strings? The documentation for ...
106 views

### Efficient Search for reverse element in List of Lists

I have a big list AllCycles with contains lists of non-repeating integers (and the first element is always the smallest). I want a function ...
313 views

### How can I implement my own documentation search function?

The current documentation search doesn't allow for very sophisticate searching, can I write my own function to search through the docs?
1k views

### Efficiently searching a list for the position of the closest number to a specified number

Searching by closest and position I wasn't able to find an answer—but found Nearest by guessing. Nearest, however, returns ...
710 views

### Searching a phrase in all *.nb files

I have so many *.nb files in a folder. In one of them I have written a phrase, unfortunately I cannot remember that file. I am searching about it and the file in ...
83 views

### dynamic binary search

Suppose I have a time series of values $v_1, \dotsc, v_n, \dots,$ (think of the data as being generated by repeated function calls, like a Python generator, or being captured in real time) and I want ...
235 views

### Obtaining the position in a list where the i^th element is bigger than the (i+1)^th element

My question is very simple but I am not able to find the optimal solution. What I am trying to do is to have a function that give me the position in a list at which the value at position ...
54 views

### How to find where in a large expression Power::infy is generated?

Consider the following expression: ...
102 views

### Memoization and finding already calculated DownValue

The problem of plotting an expensive function discussed in this question caught my attention. As an exercies I tried to solve it using memoization as follows ...
59 views

### What can we do with the Dump contexts? [closed]

So we know from here what the *Dump contexts signify and here Rojo found a very useful goody that involves them: ...
87 views

### Code/Exp Search Documentation Center Mathematica

I have added several of my own applications to my Mathematica documentation center. Currently Mathematica uses followings notebook options to help the user search for specific functions. ...
142 views

### Display Documentation From Function

I would like a documentation function that works like that following. doc["search terms"] and it displays the list of search terms. And then ...
70 views

### The nearest object from the array of objects

I need to find the most similar to desired object from the array of objects. In this case ...
644 views

### Working with deep lists

I want to store parameters value such that the function that depends on those parameters. For example, let's say I have a function that depends on three arguments: f(x;a,b), where a and b are ...
50 views

### Is there a way to search for a WolframLanguage pattern in Notebook? [duplicate]

Mathematica Notebook has a Search&Replace dialog, which allows to look for particular expressions. But I'd like to be able to find instances of code corresponding to a particular pattern. E.g. if ...
57 views

### Alternative Methods of Using Cumulative Density Functions To Obtain Probabilities

I have a CDF that is generated from the subtraction of two arrays as part of a minimization procedure. A consequence is that events in the simulation can cause the subtracted total to be less than 0: ...
129 views

### Is it possible to search the web by image from Mathematica?

Is it possible to perform a web search based on an image input? There are several services that provide this: Google, Bing, TinEye, and maybe others. I am not sure which can be accessed ...
255 views

### Basic Search Functionality

Let say I have three blocks of text like the following. {"first block of text with random content","different block of text","1 2 3 4"} Now let's say I want to ...
61 views

### Improved Documentation Search By Actual Content

Now by default Mathematica documentation searches keywords section in the Options version of the notebook and the actual text of the notebook. For example here is a snippet from ...
320 views

### Position and string patterns

I am trying to get Position work with patterns. I have the following code: ...
148 views

### How to find alignments of interlocking shapes?

I'm searching for the ways to align interlocking shapes, that is, finding the locations and rotations that maximize the arc length at which they touch. For simplicity, I'm assuming 'shapes' are one ...
72 views

### Why does documentation search fail on substrings?

For example many times I have to type the full string exactly which defeats the point of a search, so perhaps this is a bug?
151 views

### Replacing parts of a complicated expression with shorthand symbols

I have a list, each element of which contains a different complicated expression. Here is a simplified example of the first three entries of the list, displayed one above the other: \$\frac{Ey \ \mu \ ...
1k views

### How can I get Google search results with Mathematica?

I am trying to write a function that, starting from a string, returns the Google search hits on that string (the format and other stuff, I still have to decide). I have looked around and have found ...
264 views

### WolframConnector - getting credentials for GoogleCustomSearch

I need to fill in the information for the WolframConnector in the panel shown below which is activated by running the command: ...
279 views

### For loop to perform a shooting search in NDSolve

First comes the disclosure: I am very new to Mathematica and not so much a numerical guy in general. I am having a hard time using the for loop routine in Mathematica the correct way as well as ...
124 views

### TextSearch Function

I am trying to use the new text search function to help me look through a directory of files for string that I chose. Essentially I've got a large list of notebooks and don't want to manually look ...
143 views

### Searching for literal strings with TextSearch

The documentation indicates that TextSearch can be used to look for a "literal string" inside documents, but it appears Mathematica may be applying a regex-style ...
2k views

### Finding all of the words containing certain letters

Is there a fast method to find all of the words containing the letters: {a, e, i, o, u, y}? I created an algorithm, but it takes more than 11 seconds to find all of ...