Articles
          
  
  
  
  
      
    
  
  
                  
          8 June 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
    
  
  
    One of the major annoyances for me working with very large datasets you get from someone else is that you often don't know the format the file is coming in, not a problem really just take a peak in Notepad++ or Excel and you are away. But quite often these files are millions of rows in length and it is just not possible to work it out.
So I've   
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    Tags :
          powershell
                sql
                split
                truncate
            
    
 
  
  
  
  
      
    
  
  
                  
          23 April 2017        
      
    		by		
		marty		
		                  
          Misc         
      
      
  
  
      
       
    
    
  
  
    Well I suppose it was inevitable, when you suddenly realise you are getting older by the things you catch yourself doing/saying thinking getting more frequent.
The latest thing I've noticed is that my propensity to fart in public has increased exponentially! It used to be the case that I'd internalise the pain of holding in a ripper for hours on   
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    Tags :
          parp
                trump
                scale
            
    
 
  
  
  
  
      
    
  
  
                  
          15 April 2017        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
    
  
  
    This is one of those little quirks in excel that's annoyed me for a while, there must be some method in their madness but I've yet to come across anybody that thinks it is logically the way forward; so I've written one for you to use.
The way the in-built function works is that it reports back the answer as how many months apart are the two dates   
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    Tags :
          excel
                function
                datedif
                datediff
                sql
            
    
 
  
  
  
  
      
    
  
  
                  
          7 April 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    If you've ever plugged a Raspberry Pi into a tv you've probably come across this issue - the displayed image either doesn't fill the screen or over-runs it.
The usual bit of googling reveals that all you have to do is tweak a couple of overscan settings and you are good to go. It sounds easy but three Raspberry Pis in and I've only just found the   
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    Tags :
          raspberrypi
                overscan
                hdmi
                tv
            
    
 
  
  
  
  
      
    
  
  
                  
          30 March 2017        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
    
  
  
    My new adage of
"You only know what you know how to google"
	- Martin Childs, 2016
stood true for this little puzzler, the answer wasn't apparent from simply googling it! All I wanted was to do something to a range input in a custom Excel function, easy you'd think - not in this case. I toiled for a bit of time before conceding that I'd just have   
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    Tags :
          excel
                function
                range
                custom
            
    
 
  
  
  
  
      
    
  
  
                  
          22 March 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    First up I'm sorry about bathering on about this SSH thing but I to be honest I'm padding out the blog posts a little bit as there's one article I've written that I'm just not sure I want to publish, It's nothing bad, just not in keeping with the tone of this site so I've racked it up at the end of the post ready to go and keep adding posts in   
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    Tags :
          SSL
                https
                raspberrypi
            
    
 
  
  
  
  
      
    
  
  
                  
          14 March 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    I came across my old shortcut on my windows machine to vnc onto the Pi which prompted me to have a go connecting to my new RaspberryPi3.
I duly fired it up only to receive an error message along the lines of 'No configured security type is supported'. After a bit of research it turns out that RealVNC has upped their security protocols and TightVNC   
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    Tags :
          realvnc
                tightvnc
                vnc
                pixel
            
    
 
  
  
  
  
      
    
  
  
                  
          6 March 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    One of reasons why I originally held back on buying a SSL certificate for my website was that I wasn't sure that it'd work using a dynamic IP routing service - cos I didn't want to waste $15!
Well you don't need to fret about it because I can confirm it works after I eventually got round to setting up a free LetsEncrypt.org one on my   
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    Tags :
          dynamicdns
                ssl
                website
                https
            
    
 
  
  
  
  
      
    
  
  
                  
          26 February 2017        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
      
       
    
    
  
  
    Here's a blast from excel past, it was actually one of the more interesting projects I worked on. We were designing food waste recycling plants for the food manufacture and retail industries. The task was to calculate the most efficient solution ofhow many recycling plants to build and where to build them based on the waste arising of each shop   
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    Tags :
          ordnancesurvey
                os
                excellongitude
                latitude
                convert
            
    
 
  
  
  
  
      
    
  
  
                  
          21 February 2017        
      
    		by		
		marty		
		                  
          Misc         
      
      
  
  
    
  
  
    I love an analogy, there's nothing better than pushing your explanation across the line with an unequivocal corresponding example in everyday life.
I think I've crossed the line this time though, I'd been asked to rate the presentation I'd just been given on a subject outside of my specific skill set; I responded that it was tricking given how   
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    Tags :
          xfactor
                analogy
                musing
            
    
 
  
  
  
  
      
    
  
  
                  
          18 February 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    For me being SSL secured has always been the benchmark as having a bonafide website. That little green padlock next to your websites URL doesn't really mean much for a blog, but I always wanted one. At the start of last year I started thing about trying to get one.
Ever being a skinflint I wanted to pay nothing for it, but logic overcame   
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    Tags :
          SSL
                https
                letsencrypt
                apache
                certificate
            
    
 
  
  
  
  
      
    
  
  
                  
          10 February 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    My dream RaspberryPi project that I am slowly chipping away at is to create the ultimate alarm clock. It is a slow burner though as at it's inception I had none of the skills I needed to pull it off.
I've now amassed all of the technical skills to pull it off and I'm just left with finalising the design and finding the time and the parts (not a   
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    Tags :
          OLED
                display
                raspberrypi
                GPIO
                python
            
    
 
  
  
  
  
      
    
  
  
                  
          2 February 2017        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    So you've written a killer python script and you want to run it in the background as a service because when you close the terminal window/SSH session it kills it. I originally worked it out when I wrote my Twitterbot app, and was going to write it up seperately then but it took me so long to get it running in the background and I tried so may   
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    Tags :
          pthython
                script
                backgroup
                daemon
                service
            
    
 
  
  
  
  
      
    
  
  
                  
          25 January 2017        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
    
  
  
    Things have moved on since the days of DSUM, we now have the likes of SUMIFS from Excel 2007 onwards. Can't even remember life before SUMIFS having never being a fan on DSUM. 
But with all things in life everything moves on, everything is never good enough and now SUMIFS's shortcomings are beginning to pop up.
The other week the need came up for a   
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    Tags :
          excel
                sumifs
                or
                dsum
                countifs
            
    
 
  
  
  
  
      
    
  
  
                  
          17 January 2017        
      
    		by		
		marty		
		                  
          Misc         
      
      
  
  
      
       
    
    
  
  
    One of the highlights of my summer was the adoption of a supplementary passtime, having recently picked up a copy of the National Trust's 50 things to do before you are 11 3/4 to inspire fun activities to be enjoyed with my niece and nephew I proceeded to introduce them to it.
Unfortunately despite them falling very short of the cut-off turns out   
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    Tags :
          50things
                geocache
                jensvoigt
            
    
 
  
  
  
  
      
    
  
  
                  
          9 January 2017        
      
    		by		
		marty		
		                  
          Misc         
      
      
  
  
    
  
  
    Had a right good chuckle to my self whilst on holiday in Cambodia, in the spirit of travelling light I'd left my electric toothbrush at home favoring the good ol' fashioned way of doing things.
I've never been a fan of the manual way - always found it a bit too awkward and unusually for me being ambidextrous I suddenly realized that I'd never   
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    Tags :
          teeth
                toothbrush
                ambidextrous
            
    
 
  
  
  
  
      
    
  
  
                  
          1 January 2017        
      
    		by		
		ali		
		                  
          Recipes         
      
      
  
  
      
       
    
    
  
  
    On yet another fun Saturday night out at National Cycling Centre to watch the Revolution Cycling Series I set off in search of a snack! I had often seen the ice cream stand at the Sapporo noodle bar, but had never tried the ice cream.
I joined the queue to get myself an ice cream, deciding to get two scoops (despite declining the offer   
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    Tags :
          icecream
                coconut
                chocolate
            
    
 
  
  
  
  
      
    
  
  
                  
          30 December 2016        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
    
  
  
    "You only know what you know how to google"
	- Martin Childs, 2016
This post was supposed to be about how create a custom Excel VBA function, the origination of the idea was despite my lifelong career of tinkering with excel I'd never come across or had the requirement to have a function cycle through the cell you input as a range to perform a   
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    Tags :
          martin
                childs
                quotation
                quote
            
    
 
  
  
  
  
      
    
  
  
                  
          28 December 2016        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    There are some things that aren't easy to do in SQL as you'd like. I don't know why it has to make the seemingly simple things to complete in Excel so annoyingly tricky. 
Dynamic pivots is one of those things that is overcomplicated, sure there's plenty of tutorials on the t'internet , but what they all seem to lack is instructions of how to write   
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    Tags :
          SQL
                pivot
            
    
 
  
  
  
  
      
    
  
  
                  
          18 December 2016        
      
    		by		
		marty		
		                  
          Recipes         
      
      
  
  
      
       
    
    
  
  
    Whilst we were out in Tanzania on Safari something wasn't quite adding up, every night at the hotels there was several Lamb dishes to be found on the menu. The thing was vexing me was that despite being in the country for nearly a week and spending at least eight hours a day driving through various types of countryside I'd yet to lay eyes on   
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    Tags :
          lamb
                curry
                goat
                tanzania
            
    
 
  
  
  
  
      
    
  
  
                  
          10 December 2016        
      
    		by		
		marty		
		                  
          Misc         
      
      
  
  
      
       
    
    
  
  
    As much as I love Excel there are some circumstances where it just doesn't cut it - more than a millions rows and computer says no; some rediculouse vlookup and you could be there for hours. So step in SQL, it can do those aforementioned tasks in a matter of seconds.
There are a couple of occasions though where SQL is not king, one of these is   
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    Tags :
          DDMMMYY
                date
                convert
                SQL
            
    
 
  
  
  
  
      
    
  
  
                  
          2 December 2016        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    One of the common themes of the computer industry is to try to install a load of bloat on your computer under the guise of making it easier for you, well when I first got my Dell E310dw and had a flick through the setup guide to head off any such shinangans I noticed they had some sort of 'universal' installer.
Trying not to fall for that I   
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    Tags :
          dell
                printer
                windows
                e310dw
                bloatware
                install
            
    
 
  
  
  
  
      
    
  
  
                  
          24 November 2016        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    I'm always one for saving a bit of money and many years ago I came up with the plan that I could save a lot of money in printing costs if I didn't own a printer. It is a great idea, you'd be suprised at how much unnecessary printing you get up to and there's always the kick in the teeth of inkjet printer ink being more expensive than   
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    Tags :
          dell
                printer
                raspberrypi
                e310dw
                brother
                install
            
    
 
  
  
  
  
      
    
  
  
                  
          5 July 2016        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
      
       
    
    
  
  
    This is a cracking blast from the past, I was digging through my old personal macro excel backups when I came across this beauty.
It dates back to my recycling plant development days, I had to devise an algorithm to work out the most economical site placements for food waste recycling facilities for a given highly dispersion of waste arisings.
The   
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    Tags :
          Excel
                convert
                Postcode
                xy
                grid
                co-ordinates
            
    
 
  
  
  
  
      
    
  
  
                  
          27 June 2016        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
      
       
    
    
  
  
    Sorry to bore you with yet another Explode addin post, but I think this is worth it on a couple of fronts. Assingning a shortcut key to the explode plug-in makes more awesome - being able to devle into those dependants even quicker.
Also seeing as as my initial explode post is one of my most read posts, I know you'll all lap it up.
There are two   
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    Tags :
          excel
                shortcut
                addin
                developer
                explode
            
    
 
  
  
  
  
      
    
  
  
                  
          19 June 2016        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
      
       
    
    
  
  
    Like with most things in life, the longer you do something for the more you get set in your ways. Excel is no exception and if I'm a sucker for anything it's number formatting.
Maybe it's the accountant in me, but I think negative numbers are easier to read and look far more stylish wiht a bracket around them. Then if you are going to use a   
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    Tags :
          excel
                shortcut
                format
                macro
                toggle
            
    
 
  
  
  
  
      
    
  
  
                  
          11 June 2016        
      
    		by		
		marty		
		                  
          Excel         
      
      
  
  
      
       
    
    
  
  
    After many months struggling with my favorite excel explode addin, I've finally discovered the solution to my issues.
The problems started after I arrived at a new job - the computers were super locked down and they had Office 2010. I had problems installing the addin and even when it was working there was no 'Explode..' option on the right-click   
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    Tags :
          explode
                excel
                addin
                latest
                version
            
    
 
  
  
  
  
      
    
  
  
                  
          3 June 2016        
      
    		by		
		marty		
		                  
          RaspberryPi         
      
      
  
  
      
       
    
    
  
  
    Next in my series of helpful SQL code is duplicates, I seem to always be having issues with duplicates. This annoys me immensely as all of the issues comes from other peoples data I have to work with.
No problem I hear you say, google is awash with ways of how to delete them. Trouble is these are all based on blindly deleting superfluous rows   
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    Tags :
          SQL
                duplicates
                dedup