It indicates how the data is changing and can be used as a prediction for values in the future. If the values are increasing a trend line will show that and give an idea of what future values might be.
A weekly trend is the trend of a certain security when looking in a chart with weekly time frame.
line chart
Sparkline
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A line chart would be the best chart to do that. However, it could also be done with a bar or column chart. You can also add trendlines to them to help show a trend.
If you read through the names of the charts, only one of them has the word "line" in it. It is kind of obvious that the answer is a line chart!
A line chart is often used to visualize a trend in data over intervals of time, thus the line is often drawn chronologically.
the increasing use of technology
3 Ducks is a Forex (buying and selling foreign currency) trading system that relies on three charts: A 4 hour chart helps you to identify the last up or down trend A 1 hour chart helps confirm the direction of the trend A 5 minute chart helps identify buying and selling opportunities in the direction of the trend. I had to look it up, because Forex trading is, to me, one of those market segments where you end up with a million dollars by starting with two million.
Generally, pie charts do not indicate trends. Line, bar and column charts are better for trends. They are designed to show how something is split up, so it does not have that purpose, so the answer would normally be no. However, a pie chart could indicate a trend if there was a pattern in the successive slices, like if each was getting larger and each represented a time period, like a month. A few pie charts shown together could also indicate a trend, by looking at how the same data changes from chart to chart.
A bar chart is a bar graph. It is a means of allowing you to compare data, for example, each bar could show, by its height, the amount of corn harvested in Iowa in a sequence of years. Then you could see what the trend is.
To draw a hysteresis curve in an Excel document you need to choose chart under the Insert tab, specifying a scatter chart. Then you will specify your data, which should be listed in columns in an Excel document. You can add the trend curve by selecting the Chart tab and going through the options offered.