1. First, import the required data into origin, and you can get the data shown below. Click the left key to select the place indicated by the arrow in step 1 in the figure, and you can add some practical changes on the green edge, including the need for pointers. In this way, you can get the results of the chart, and you can add the trend line to the chart made by Origin.

2. Next, you can see on the screen that the small picture frame shown in Figure 2 will appear at this time, and the data of the third step on the way will appear when the mouse moves the small picture frame, that's all. This method is also suitable for the marking of infrared image data, and the marked place should be dealt with emphatically, and the error should be removed in post-processing.

3. Enter the data in origin8.0 or 8.5, select the data of "X" and "Y" with the mouse, move the mouse to step 1 in the figure, and modify the name on the coordinate axis: left-click to select the name to be modified, and then right-click to appear "Properties ...".

After selection, you can edit it, and you can also adjust the font color, size, type, and whether you want an outer border. Next, after the linear fitting dialog box pops up, determine the settings of related parameters.

4. Then left-click to select the phenomenon in the second step in the figure, continue to select the target with the mouse, and you can continue to add appropriate analysis → fitting → polynomial → open the dialog box ... and click OK to successfully join the trend line.

Extended data:

Application of trend line in futures trading;

Breakthroughs in the trend line are often used to analyze the price trend, which is a new position, or if you are looking for an opportunity to close your position, then a breakthrough in the compact trend line often constitutes a wonderful starting signal.

Of course, other technical signals must always be considered. In addition, when the trend line supports or blocks, it can also be used as an entry point. Buying on the upper side of the main uptrend line or selling on the lower side of the main downtrend line are all effective countermeasures for timing.

Application of trend line in foreign exchange trading;

First of all, it is absolutely useful for our analysis to make clear that the trend is a reflection of the exchange rate trend.

Second, the trend line applies the principle of inertia to represent a changing trend of things in the process of movement. For example, in the process of market rising, it takes a gentle speed to enter the downward situation again.

Thirdly, the channel concept of wave theory is similar to the trend line principle.

Baidu Encyclopedia-Origin

Baidu encyclopedia-trend line