Contents
What is a spike in data?
A spike is a comparatively large upward or downward movement of a price in a short period of time. A spike may also refer less commonly to the trade confirmation slip that shows all the pertinent data for a trade, such as the stock symbol, price, type, and trading account information.
What is a spike raster?
A spike raster plot displays the spiking activity of a group of neurons over time (for more information see this page). In a raster plot each row (y-axis) corresponds to the index of a neuron in a neuron group. The columns (x-axis) corresponds to the current time in the simulation.
What is a dip in a graph called?
There was a decrease in the number of cakes sold from Monday to Tuesday (this is called a dip in the graph) After Tuesday, the number of cakes that the bakery sold increased each day till Saturday (this is known as an upward trend as the line goes up)
What causes a spike in a stock?
The reason for the higher share price is an increase in the number of people looking to buy this stock. This difference between the supply and demand of a stock causes the share price to rise until an equilibrium is reached. Remember that in this case, more people are looking to buy shares than sell them.
What are raster plots used for?
A raster plot is a simple method to visually examine the trial-by-trial variability of the respones. You can examine what features these responses have in common by averaging over all responses to create a peri-stimulus time histogram.
What is Spike density?
The spike density function (SDF) reflects both the endogenous activity of the neuron and the synaptic inputs influencing its firing pattern. Variations of the firing frequency are induced by a number of internal or external factors and events.
What is the high point on a graph called?
One important feature of the graph is that it has an extreme point, called the vertex. If the parabola opens up, the vertex represents the lowest point on the graph, or the minimum value of the quadratic function. If the parabola opens down, the vertex represents the highest point on the graph, or the maximum value.
How do you describe a peak on a graph?
Explanation: A peak in the data shows that you have a large number of respondents or a high rate at a certain point along your x axis. In the graph below, the first series of data (blue) has a sharp peak at 8 on the x axis whereas the second series of data (orange) has a more gradual peak at 6 on the x axis.