Translation Issues

Where on earth did the time go? One minute I was looking at ice sculptures and wading through snow drifts and now the snow is gone (mostly) and various wildlife has emerged from hiding.

Look, beavers!

I’ve also managed to get out on the water myself. And eat bacon while doing it. Canadian bacon is Different.

riverbaconRiver bacon!

Perhaps the main reason I’ve lost track of time in the last few weeks is that whether I’ve been awake or asleep, this keeps on flashing in front of my eyes.

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I haven’t been able to escape it. My office desktop has looked like this on and off for the whole month. I hope to later show what this has resulted in, but in the meantime I’m going to moan about the amount of pain it’s caused me.

The main source of trouble was that this code was originally written in Matlab. I decided to save us from having to acquire a Matlab license by translating the many scripts that make up the code into R.

Initially this was tedious. There are enough syntax differences (not to mention different names of functions etc) between R and Matlab that this required me to go through the code line by line. Then, even when I done this a number of errors arose simply due to the differing ways that the two programs handle data. I’ll post a guide based on what I learnt in separate post, featuring less pictures of beavers.

Much hair pulling later I got the code running, fed it my data and got a result. These results were consistent with some previous findings obtained using simpler methods. So far so good.

I then decided that instead of feeding my data to the code all in one go, it would be useful to give it one day at a time and then collate the results. “Fine” I thought. “Just modify my overarching processing code, no trouble”.

I was wrong.

c149182a696e73890de876f3d392e2da(Found via googling evil Matlab)

Once again the way in which the two programs handle data required me to make a lot of modifications to the various scripts. Cue more hair pulling. I should also mention that I’ve written this code to be run in parallel, utilising all of my computers cores to increase speed, which means R’s normal debugging tools don’t work.

Finally I got the code to run again and got a result. However, something had changed. A previously suggested relationship had completely reversed in direction. Was this simply due to the new way of feeding the data in? Or was it due to a bug in my code? Or due to me deleting some faulty data? I ran the code again using the original way of processing the data.

Even using parallel processing, this code can take anything from several hours, to all night to run. This meant that getting results was a slow process. So after waiting several hours for the code to run again using the original data processing, once again I got results.

The relationship had flipped direction in these results too.

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This suggested that the changes I’d made to accommodate the new data processing method had resulted in a COMPLETELY DIFFERENT RESULT. On the one hand, this was good. It meant that the biologically unrealistic result was due to my error rather than a fundamental problem with the methods. On the other hand, this is the sort of thing that can wake a scientist up at night screaming. A series of small changes in the way data was analysed leading to completely misleading results. In this case we’d caught it before we went too far, but if we’d approached this naively it might have been very easy to miss.

So, now I needed to work out which of my changes had caused this change. Luckily I save all my working files in Dropbox, which keeps a backup of all previous versions. I found a word document containing graphs I’d made to show my supervisor before I’d made changes and reverted all my code to a date before then. Then one by one I reinstated my changes.

In the end I pinned it down to one file. In that file, one line of code.

as.matrix(Y)

One line of code had resulted in huge, significant changes to my final result. As I said, the stuff of nightmares.

In the end I stripped out all the changes I’d made and carefully rewrote the scripts to deal with the new method of data processing. So my tale of woe has a happy ending, the code now works and perhaps I’ll even have some results soon. For everyone who made it this far, here is a view of Gatineu Park:

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Chickadees are hard to take photos of

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See?

I think I’ve been in Canada almost two months now. It’s hard to say as the initial turmoil of moving to a new country slowly changes into everyday routine. This generally involves getting up, trying to do some science until some time in the evening and drinking far too much tea.

I’ve met my study species properly now. A few weekends ago we went for a walk at a place called Muddy Lake (currently frozen and definitely not muddy). When walking along the paths you will generally be followed by a cloud of chickadees, who live in hope that you will be one of the many people that feed them. They whiz around your head, dancing from branch to branch, waiting for the food to be provided. If you DO have food, they will quite cheerfully eat out of your hand.

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Despite their tameness taking a photo of them in a more natural setting is challenging, due to their dislike of sitting still for more than a second.

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As well as having met my study species properly, I’ve also been working to get to grips with both social network analysis and the study of personality in animals. I had a passing interest in both of these topics before, but now I’m having to rapidly learn about how these analyses are done.

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Chickadees are highly social and tend to move about in small flocks. We have information about which birds were with which other birds at feeders.This is generated by special feeders which can identify individual birds fitted with RFID readers.

Picture1An RFID feeder, photo by Teri Jones

We also have information about how certain birds reacted to personality tests as well as which birds are dominant and which are subordinate. There are quite a few interesting questions we could answer by bringing these datasets together. Wrangling the various files together is and working out how to analyse them is the main thing I’m currently dealing with. This involves spending a lot of time shuffling data about in R. I’m also trying to automate and improve some of the workflow for generating this type of data.

We’ve  had a few quite heavy snowfalls. This was my building the day after a particularly severe one:

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and this was the window to our office on the same day as the sun was steadily blotted out:

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A few weeks ago I gave a departmental seminar on my ENTIRE PHD. This involved talking for longer than I ever had before, which made it very easy to lose track of time. I was extremely afraid of speaking for too long and boring everyone to death.

Picture2So many slides!

I felt it went quite well. My main mistake was towards the end. I glanced at a clock (the WRONG clock) as it turned out and was convinced I’d gone overtime. I sped up for the last few slides (which is unfortunate as they are the most interesting) and then apologised at the end for speaking for so long. As it turned out, I’d looked at the wrong clock and came in under time. At least it left lots of time for the many questions, which hopefully indicate that people are interested in what I spent about four years of life doing.

I have been finding time to try and do some more CANADIAN things. For example, I’ve now tried Poutine which according to Wikipedia is Canada’s national food. It’s basically chips, cheese and gravy. I think that undersells it, it’s warm, tasty, cheesy, potatoey goo.

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I also ambled up to Winterlude (a winter festival thing held in Ottawa), where the international ice sculpture championship:IMG_0759OWL

IMG_0758almostashag?

This included a demonstration of ice carving, which is apparently mostly done with powertools now!

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I clearly need to find some more CANADIAN things to do. Someone mentioned something called Nanaimo bars..

 

Snowy owls, snowmobile trails and beaver tails

So I think I’ve been in Canada for nearly two weeks now. I am gradually learning things.

For example, when someone talks about getting beaver tails, they actually mean some sort of delicious pastry:

beavertailDEEP FRIED BEAVER!

I also learned how to write some basic video analysis stuff in python, and that a single chickadee in a controlled environment is an easier thing to track than multiple shags on the ocean:vlcsnap-2016-01-23-23h49m11s193I learnt that they deliberately thicken the ice here:

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This is so the canal (which I walk along on the way to the office) can be turned into a massive ice skating rink. It opened for the first time today. I saw many people gliding effortlessly along, as well as some children being dragged along on sleds, which looks more my speed.  Since I got here I have occasionally been asked if I skate, to which I give a rueful laugh. I don’t think me and skates would really mix.

Another thing I learned is that batteries drain very quickly in the cold weather. Today myself and the grad students in my research group went to see if our lab vehicle still worked after sitting in a garage for a month or so. The answer was, it didn’t.

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Battery is flat.

However once a man from the Canadian AA turned up and jump started it, the car had to be driven somewhere to charge the battery. So I got to go on jaunt to one of the field sites where chickadees are studied, alongside a snowmobile trail. This was great as I was keen to get out of the city and see some Canadian countryside, and see some chickadees in the wild.

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We found many chickadees, but also a bald eagle!

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Eeeeeeagle!

Shortly after seeing this I left the trail to go and look at a heap of rusty farm machinery buried in the snow. When I came back to the path, I knew something was afoot. It was then that I learnt that Canadian ambushes are exceptionally polite, as I was warned I might want to put my binoculars away:

12615379_10208372060120941_7821439240601366873_oArg! (Photo by Teri Jones)

It was then decided that we would head back toward Ottawa and try and find some snowy owls that had been reported in the area. On the way we would stop for “Timbits”. I did not know who Tim was, or the answers to any related questions. I found out:

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It seems that Timbits are a big box full of the centres of various doughnuts! These tided us by as we headed toward where we might find snowy owls.

We stopped at the edge of a field in the general area where the owls had been seen. We all climbed out of the car and had a general scan of the trees and hedgerows. Nothing. We got back in the car to try a different spot. This was rather similar to my previous experience of attempting to see specific birds, so I wasn’t overly hopeful about finding a snowy owl in an expanse of snowy fields.

Then Shannon who had been looking out of the moving car with her binoculars (I am fairly certain doing this would make me carsick) suddenly spotted something on an electricity pylon in the middle of a field. We parked as close as we could to have a look. The post was quite a distance from the road, but through our binoculars we could clearly see a snowy owl! I had never even seen an owl in daylight, let alone that clearly.

I tried to get a picture but even at maximum zoom it wasn’t enormously clear.

IMG_2982Owl?

Still, the view through the binoculars was great. We stood and watched the owl for a bit, before deciding to head back down the road to try and find the female that was also supposed to be about. Once again I was sceptical. I think I’d just said finished muttering something along those lines when I suddenly has to ask:

“What’s that on the post?”

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There, on a post right next to the road was another snowy owl. We parked up right next to it, getting a much better view than before. I decided I had to try and take a photo.

It was at this point was once again reminded that batteries drain incredibly fast in the cold. Like the car earlier, my camera refused to start up. I fumbled with the various spare batteries. None of them worked. This was absolutely typical but luckily the owl was fairly accomodating. Eventually through luck and the strategic warming up the batteries, my camera finally fired up:

owl1OWL!

Tomorrow: statistics course!

Arriving in Canada and what on earth do I call this blog now?

On Saturday the 9th, I finally left Cornwall after 8 years at Exeter’s Penryn campus. I’ll skip all the various Feelings  I had leaving all my friends and regular haunts. I’m fairly certain I’ll be back at some point anyway. Suffice it to say, I had a lovely series of leaving dos and made the most of my last few days in Cornwall.

One last sea swim. Good to acclimatise me to very cold weather

Then I was off to CANADA. After packing of course.

Over Christmas I had raided various outdoor shops in search of cold weather gear. I’d had various warnings about -25° C temperatures and therefore engaged in a last minute scramble to make sure that I’d be warm enough when I arrived. All this and various other aspects of my life would need to fit into a 100 l duffel bag and a 60 l rucksack. Funnily enough, this didn’t actually prove too much of a problem. The downsizing I did have to do was quite cathartic. The internal processing went something like this:

“Do you need <THING>?”

“Yes.”

“Are you sure you need <THING>?”

“Yes!”

“Are you sure? Are you sure? Are you sure?”

“… no”

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and thus I did not take a million and one pairs of socks (which would be too thin for this time of year anyway) or old t-shirts which, while I was very attached to them, were full of holes. I did take my climbing equipment, reasoning that indoor climbing would be a sensible sport to continue. I ultimately decided against taking camping equipment, mainly for space reasons. It’s probably a bit cold right now anyway, I may attempt to get it posted out when the weather was a little more clement.

Hoicking by now 21 kg (still in the weight limit) duffel bag onto my back I then boarded the series of trains, cars, underground trains  and planes which would take me to Canada. The flight passed uneventfully (I watched The Martian!) and after standing in various queues to get through passport control, immigration etc I was finally officially in Canada. I pulled out my new thick coat and mitts and headed outside.

Snow!

Being British, I had generally come to accept that winters would involve mainly wind and rain, and only rarely snow. Here however, there was more snow than they knew what do with.

No possibility of getting excited though, I had a heavy bag and needed to bus into town before it got even darker and colder.

The bus journey ended up being completely free, which was good as all the buses had “exact change only” labels on them. I definitely did not have exact change having only just arrived. The first buses till was broken. The second bus driver saw that I had nothing smaller than $10 and told me I could travel for free if I told him where my accent was from. Which was extremely kind of him.

I arrived at the place I am staying, starting to feel the effects of jetlag. I think it was about 11:00 UK time when I arrived, and I’d been up from 7. Though I was very nearly napping at one point, I managed to stay awake until about 2:30 UK time (9 PM here) which meant I woke up at a reasonable time the next day.

The next day I visited my new department. It is very much bigger than the Cornwall! My new supervisor/boss Julie led me through a maze of corridors and stairwells showing me various bits of the department, including my new office space (Fourth floor. Not the first, second or third which I discovered by process of elimination the following day). I met other members of my research-group as well.

I then went off and did some dull but necessary things, but afterwards ambled up to Parliament hill

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I imagine this could be quite a touristy place but there wasn’t a soul around except for the police. I then headed down to where the Rideau  canal meets the river.

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Once again there wasn’t anybody around. It was really quite eerie, as even the traffic noises died away leaving nothing but the sound of the wind and the creaking ice.

Finally I headed home, back along the canal. Here is a photo from the footbridge to the university over the canal, which is my regular walk into the office now.

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I hope to try and do some more touristy stuff on the weekend. In the meantime, more boring yet necessary stuff as I set my life up over here. And soon, some science!

the Final Official (anticlimatic!) End and what happens after

Today I received this e-mail:

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So that’s definitely it. More or less four years exactly after starting, the PhD is officially completed. I’d say that’s the end of shags for me except, as I’ve commented before, there are bits of my thesis that I’m keen to write up as papers. That process is still ongoing and I might enthuse about things  (like how pretty the graphs that python can produce are) at some point in the future. There is however, now an extra incentive to get those papers finished.

Back when I wrote about my viva experience I finished on a question:

“…but for the most part I now have to think about some big questions. Namely, what on earth do I do next?”

At the time that was a huge and scary question. With the viva over I felt like I was lacking in purpose. I had corrections and papers to work on, but those were distractions from the sudden looming nothingness that came from the sudden end of what had taken up three and a half years of my life. I’d stop being paid a while back and was relying heavily on the kindness of my friends, subsisting on my savings and whatever demonstrating work I could pick up, anything to avoid having to leave Falmouth.

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This was important to me. I’ve lived here for over eight years now, and as such was reluctant to leave. I wanted to try and remain near the university in some capacity, where I could benefit from collaborations on papers and get advice from others’ experience while applying for jobs. I also felt it was important to try to maintain my independence.

However, I knew I was going to have to leave eventually. Eight years is quite a long time to remain at one institution and so any job I applied for would definitely not be down here. In some ways, the further away the better. My main objectives with finding a post-doc was that it would allow me to continue studying something relevant to my research interests (social information use, group behaviours etc.) and that my skills were adequate. Aside from that, I would go anywhere and study anything.

So here I was, malingering, doing teaching work, making pretty figures in python, trying to write papers, applying for some post-docs and getting used to rejection.

Then a friend in the office e-mailed me a job that they had seen advertised that they thought sounded relevant to my interests. Which it was, enormously. I spent a good long while checking my CV and cover letter were as good as they could be. There was a lot of proof reading by various people. To cut a long story short I got a skype interview and then, to my infinite surprise, came home late one night to find I’d been offered the job.

I always said that if I were to move away from Falmouth that I’d rather move a long way so as to make it a clean break. I definitely succeeded with this job. The reason that I was interviewed using skype was because this particular post-doc happened to be at the University of Ottawa, Canada.

I am very excited about this.

Canada was a place that was definitely on my list of places that I’d like to visit, but at the time of application this seemed of secondary importance compared to the project. I deliberately avoided thinking about it, as I didn’t want to get too excited about a job I might not get. I received quite a lot of mockery upon telling the office that I’d got that job, when they realised I hadn’t even looked at where  Ottawa was on a map. I have to admit, I always pictured Canada to be something like this:

2008-05-19-082With apologies to Three Panel Soul

or

Still, now I have to face the reality of moving there. I moved down to student accommodation in Falmouth eight years ago. I’ve never properly moved to a new city, let alone a new country. There are a million things to do before I go and it’s all somewhat terrifying. Very exciting as well.

I’ll definitely try to keep this blog going. I’m not quite done with studying shags just yet and there will no doubt be amusing trials and tribulations as I move to Canada and start my new job.

I may have to consider a new name though. The chickadee project doesn’t really roll off the tongue.

 

 

 

Scilly Swim 2015

I can never manage to stay away from the Scillies. A few months after the last time I was there I’ve been back again, to once again help out with safety cover on the Scilly Swim Challenge. Once again, about 180 mad swimmers attempted to swim between and walk across 5 (6 if we count a brief walk across Samson) of the islands, starting from St. Mary’s. This is a total of 15 km of swimming in waters several degrees colder than those around the mainland.

12004886_10207527983297343_8931950399790079652_nPhoto credit: Joanna Clegg

As before our job was to escort the swimmers, keep them going in the right direction and help them if they got into trouble. Things were a little different this year. The swimmers were divided into different pods depending on their swimming speed. I was at the back right of the red pod, which contained the fastest swimmers. We also weren’t quite so luck with the weather. There was a fair amount of wind and not quite so much sun. Nevertheless the swim went ahead.

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Despite the wind the first few legs were fine, with the wind dropping for the first leg to St Martin’s and various islands providing shelter for the next few legs. We were well fed at every stop, with more cake than the mind can comfortably comprehend.

As with the previous year, it was the leg from Bryher to St. Agnes that proved tricky. As before, the swimmers became more and more spread out over this long stretch. The other kayakers at the back of my pod fell back to keep an eye on stragglers, leaving me alone. Large swell was also coming in from the Atlantic, as well as rolling up the main channel between the islands, resulting in a messy sea that made it difficult to keep track of swimmers. The swimmers were having trouble seeing where they were going when being lifted up and down by the waves. These conditions were tricky to hold position or paddle slowly in and I can only imagine how incredibly difficult it was to swim in.

The sea became calmer as we got closer to St. Agnes and a large number of our pod successfully swam the entire way. Nevertheless some of the stragglers had to be pulled out and the decision was made to cancel this leg for the slowest pod. The final swim of the day (St. Agnes to St. Mary’s) was postponed to the following morning.

12039570_10153758815670039_1356434781389106719_nPhoto credit: Lucy Burniston

The conditions the next day couldn’t have been more different. The sun was shining and the wind had decreased significantly, making the final leg significantly easier. Last year the tide had adversely affected this leg, leading to swimmers clambering up rocks to escape the strong current. This year the tide helped the swimmers, who got to finish on a sunny beach instead of climbing out early and jogging along a coast path.

 12002743_10153758809845039_6876654144773484895_nPhoto credit: Lucy Burniston

Some of us then took the opportunity to paddle around St Mary’s in the sunshine, before heading back to prepare for the party that night.

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It was great to see and paddle with many of the same kayak support team from last year again, as well as several new faces. The swimmers were once again fantastic, remaining cheerful in the face of all the potentially tricky conditions and chilly weather Thanks to all the organisers, swimmers and fellow kayakers for another fantastic weekend.

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So what do you do after you hand in your thesis anyway?

As much as I’d like the answer to this question to be “Take a massive holiday”, the actual answer is somewhat more complicated.

10929903_10152925026312054_7107168219422032774_nCooking bacon on a beach is Thing You Can Do after handing in

The pace can definitely slow down a bit. Days off can be taken. Staying in the office till midnight becomes less critical. I can now respond to invitations to things with something other than “Sorry, writing!”. I’ve also been able to attend a few statistics workshops, which are definitely going to help with the work mentioned below. However inevitably I was drawn back into the office to try and do some more science..

Post thesis I can take stock and look back at the chapters so as to work out how best to turn them into papers. My lit review surprised me by suddenly coming out online. My tracking work received some comments as I was writing up, and I spent the week after my hand in dealing with those comments. Other chapters will require some more work for them to reach their full potential.

shagdiveOne thing I keep returning to is my collective behaviour chapter. I did quite a lot of work on this over the last year and a half, so I’m very keen to try and develop this further. The main thing I’m interested in looking into more are the different diving rules animals might follow. Previously I’ve modelled this as a discrete process with 3 simple mutually exclusive rules.  I’d like to investigate the individual parameters such as the probability of diving depending time and distance from a previous dive, or the likelihood of diving when a dive is directly in front of the bird compared to behind it.

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So with help from Colin Torney from our department of applied mathematics, we’re developing a new model (looking at social diving parameters!), using a new statistical method (bayesian!) in a new programming language (python!). So I’m learning many new things, which is also a good idea in a post-thesis world.

Of course I’m also having to delve back into old data files so as to reorganise them for the new model to read..

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(The other thing you do after handing in your thesis is wait on tenterhooks for your thesis defence date. Don’t panic!)