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  • normalize data to scale from 1 to 10

    - by Matjaz Lipus
    I have a following data set: A B N 1 3 10 2 3 5 3 3 1 3 6 5 10 10 1 20 41 5 20 120 9 I'm looking for an excel function that will normalize A and B to N on scale from 1 to 10. In above example it would be 1 of 3 is best so N = 10 2 of 3 is in the middle N = 5 3 of 3 is worst N=1 20 of 120 is in second decade N=9 A = 1 && A <= B B is natural number 1 <= N <= 10

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  • Codeigniter validation help

    - by Drew McGhie
    I'm writing a system where users can generate/run queries on demand based on the values of 4 dropdown lists. The lists are dynamically generated based on a number of factors, but at this point, I'm having problems validating the input using codeigniter's built in validation classes. I think I have things out of order, and I've tried looking at the codeigniter site, but I think I'm tripping myself up. in my view(/dashboard/dashboard_index.php), I have the following code block: <?=form_open('dashboard/dashboard_add');?> <select ... name='selMetric'> <select ... name='selPeriod'> <select ... name='selSpan'> <select ... name='selTactic'> <input type="submit" name="submit_new_query" value="Add New Graph" class="minbutton" ></input> <?=form_close();?> Then in my controller, I have the following 2 methods: function index() { $this->load->helper(array('form', 'url')); $this->load->library('validation'); //population of $data $this->load->tile('dashboard/dashboard_index', $data); } function dashboard_add() { $rules['selMetric'] = "callback_sel_check"; $rules['selPeriod'] = "callback_sel_check"; $rules['selSpan'] = "callback_sel_check"; $rules['selTactic'] = "callback_sel_check"; $this->validation->set_rules($rules); $fields['selMetric'] = "Metric"; $fields['selPeriod'] = "Time Period"; $fields['selSpan'] = "Time Span"; $fields['selTactic'] = "Tactic"; $this->validation->set_fields($fields); if ($this->validation->run() == false) { $this->index(); } else { //do stuff with validation information } } Here's my issue. I can get the stuff to validate correctly, but for the number of errors I have, I get Unable to access an error message corresponding to your field name. as the error message for everything. I think my issue that I have the $rules and $fields stuff in the wrong place, but I've tried a few permutations and I just keep getting it wrong. I was hoping I could get some advice on the correct place to put things.

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  • excel turning my numbers to floats

    - by femi
    Hello, i have a bit of asp.net code that exports data in a datagrid into excel but i noticed that it messes up a particular field when exporting. eg .. i have the value of something like 89234010000725515875 in a column in the datagrid but when exported, it turns it into 89234+19. Is there any excel formatting that will bring back my original number? thanks

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  • Floating point precision and physics calculations

    - by Vee
    The gravity Vector2 in my physics world is (0; 0.1). The number 0.1 is known to be problematic, since "it cannot be represented exactly, but is approximately 1.10011001100110011001101 × 2-4". Having this value for the gravity gives me problems with collisions and creates quite nasty bugs. Changing the value to 0.11 solves these problems. Is there a more elegant solution that doesn't require changing the value at all?

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  • How to add string to jQuery selector?

    - by Deshiknaves
    I'm trying to select an id that changes on different posts of same page. So the they have been given an id="show_posts_{PostID}" - on the final output the {PostID} is replaced with a number. In the function I need to call $('show_posts_XXXXXX') - XXXXXX being the generated ID. I have stored this ID in a variable called postId. But I can't seem to do this $("'" + "show_posts_" + postId + "'") Can anyone tell me how I can add a string to the end of a selector?

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  • Specifying schema for temporary tables

    - by Tom Hunter
    I'm used to seeing temporary tables created with just the hash/number symbol, like this: CREATE TABLE #Test ( [Id] INT ) However, I've recently come across stored procedure code that specifies the schema name when creating temporary tables, for example: CREATE TABLE [dbo].[#Test] ( [Id] INT ) Is there any reason why you would want to do this? If you're only specifying the user's default schema, does it make any difference? Does this refer to the [dbo] schema in the local database or the tempdb database?

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  • Multi-Select Dropdown with size of 1

    - by Thomas
    Is there any way of creating a combo box (<select>) with a size of 1? All the examples I can find allow for multiple selects but with a number of options visible at any one time. If this cannot be accomplished with bog standard HTML is it possible in a JS library such as JQuery?

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  • How can I get the name of the current subroutine in Perl?

    - by kiruthika
    In Perl we can get the name of the current package and current line number Using the predefined variables like __PACKAGE__ and __LINE__. Like this I want to get the name of the current subroutine: use strict; use warnings; print __PACKAGE__; sub test() { print __LINE__; } &test(); In the above code I want to get the name of the subroutine inside the function test.

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  • Changing background image of a Drupal page based on user's selection...?

    - by Sambo
    Hi I'm trying to give my users the functionality to change what the background image used on a page is. The list of background images will be a small number that won't really change. I thought I could add a few Taxonomy terms...one for each background type...then apply a class to the body tag when the page is viewed. Does this sound feasible and if so how would I go about doing it? Thanks Sam

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  • javascript multiple input textbox validation

    - by murugesan
    I have 'n' number of textbox on a form, after the user enters a value in a textbox, i need to validate its not a duplicate in the other textboxes. Ex : Textbox[0] : 1 Textbox[1] : 2 Textbox[2] : 3 Textbox[4] : 1 For this example it should alert saying that '1' have entered twice. Let me know what to be done.

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  • how to compress a bus net?

    - by zh_
    I have a file that contain huge number of net names. I would like to compress the bus nets as below: abc/def/gh[0] abc/def/gh[1] abc/def/gh[2] ab/ef/xx abc/def/gh[3] to abc/def/gh[3:0] ab/ef/xx

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  • C++ MPL or_, and_ implementations

    - by KRao
    Hi, I am trying to read the boost headers to figure out how they managed to implement the or_<...> and and_<...> metafunctions so that: 1) They can have an arbitrary number of arguments (ok, say up to 5 arguments) 2) They have short circuit behavior, for example: or_<false_,true_,...> does not instantiate whatever is after true_ (so it can also be declared but not defined) Unfortunately the pre-processor metaprogramming is making my task impossible for me :P Thank you in advance for any help/suggestion.

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  • Display sql results in groups

    - by ktsixit
    Hi all, I have an sql query here and it returns a number of results. I'd like to show these results in groups. What I mean is, show the first 20 results in some part of the page, show the next 20 results in another part of the page etc... How can I do that?

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  • Preserving the dimensions of a slice from a Numpy 3d array

    - by Brendan
    I have a 3d array, a, of shape say a.shape = (10, 10, 10) When slicing, the dimensions are squeezed automatically i.e. a[:,:,5].shape = (10, 10) I'd like to preserve the number of dimensions but also ensure that the dimension that was squeezed is the one that shows 1 i.e. a[:,:,5].shape = (10, 10, 1) I have thought of re-casting the array and passing ndmin but that just adds the extra dimensions to the start of the shape tuple regardless of where the slice came from in the array a.

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  • Ruby - Read file in batches

    - by Algorist
    Hi, I am reading a file that is 10mb in size and which contains some id's. I read them into a list in ruby. I am concerned that it might cause memory issues in the future, when the number of id's in file might increase. Is there a effective way of reading a large file in batches? Thank you

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