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I have to describe graphs, but I'm lacking in vocabulary (English not being my mother tongue), I hope there wasn't a previous open topic. If not it may be useful for others.

  • how would you call a bump in a curve, where endpoints are similar a seen on the pointed red lines.
  • How can I describe the gap as seen on the solid red line
  • how can I descrive the peak as seen on the yellow solide line
  • synonym for upward/increase which is not growth
  • synonym for downward/decrease.
  • Moreover, would it be right to say that for eg. (yellow solid line) the decrease starts at +2, but reached its peak at +1 ?

Each curve represent cumulative average price changes 5 days before and after an event (day 0). enter image description here

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    $\begingroup$ This question would really benefit from a figure depicting the different examples that you are asking about. $\endgroup$ – Sycorax says Reinstate Monica Sep 25 '18 at 16:53
  • $\begingroup$ @Sycorax, thanks for your reply. I have updated my question with a picture :) $\endgroup$ – bixoez Sep 26 '18 at 9:34
  • $\begingroup$ Could you describe which line in the figure depict which case? $\endgroup$ – Jan Kukacka Sep 26 '18 at 10:02
  • $\begingroup$ @JanKukacka I've updated :) $\endgroup$ – bixoez Sep 26 '18 at 11:40
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    $\begingroup$ @JanKukacka thanks for your quick reply, I've re updated ! $\endgroup$ – bixoez Sep 26 '18 at 11:49
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That's the vocab. I'd use, I'm pretty sure there are other similar terms too.

  • uptick
  • ... the dotted red line ...
  • upward/downward trend
  • the downward trend started at time -2 and reached its bottom/lowest value at time 1.
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  • $\begingroup$ Thanks for your answer. So how would I describe the effect of -1, as this at -1 that values are starting to decrease ? $\endgroup$ – bixoez Sep 26 '18 at 13:00
  • $\begingroup$ well, usually you'd have a date or something there, not a random number. If you absolutely HAD to use a number, label them as "at timestep 1, 2, etc..... something happened". However, business/marketing guys and clients are easily distracted, so that's a bad idea. $\endgroup$ – Hristo Buyukliev Sep 27 '18 at 13:13

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