Traction data with 1 line = 1 extraction.

Index : identification number of the extraction
Colony : id of our four colonies classified in four colours (Bleu, Vert, Rouge, Noir)
Day : date of the experiment (dd/mm/yyyy)
angle : slope angle in degree (the nest being the lower end, and the foraging area being the upper end)
RH : relative humidity in percent
temp : temperature in the room in degrees Celsius
insert_time : time of the day as a decimal
insert_pos : direction of insertion of the obstacle : from the upper-side (1) or from the lowerside (0).
end_duraction : duraction of the extraction in minutes
end_pos : orientation of the extraction : to the upper-side (1) or the the lowerside (0)
TimeExposure : time of exposure of the tube to the ants in hours
gras : boolean var, stating if the tube if one of the new tubes from Falcon (1) or not(0) as they have a slightly different friction coefficient.
coeffFriction : coefficient of friction estimated from the exposition time.
mecDillPoint : point in the tube in meters from the lower-end side where ants would need an equal amount of mechanical work to extract the obstacle in both ends of the tube.
forceRight : force needed to move the object to the right/upward in Newton
forceLeft : force needed to move the object to the left/downward in Newton
WNLeft : Mechanical Work needed to extract the object to the left in Joules
WNRight : Mechanical Work needed to extract the object to the right in Joules
gammaObs : relative fitness of the upward solution (0 meaning the ant should extract downward, 0.5 meaning both options are equivalent in terms of mechanical work, and 1 meaning the ant should extract upward)