This gives me the plot, but I am not sure how to add the trend line. Thanks for the help, I really appreciate it. Steven at 17:29 Works now, not sure what happened though. If youre getting a variable lengths differ error, then your dataframe is likely missing some data. Are you sure your dataset is correct In other words, this worked for me. Plot(c(1846:2014), c(colSums(B)), col=3, xlab="Year", ylab="Summed age", main="Summed people") You can use the following basic syntax to add a trendline to a plot in Matplotlib: create scatterplot plt.scatter(x, y) calculate equation for trendline z np.polyfit(x, y, 1) p np.poly1d(z) add trendline to plot plt.plot(x, p (x)) The following examples show how to use this syntax in practice. The difference is that with a scatter plot, the decision is made that the individual points should not be connected directly together with a line but, instead. The result was the scatterplot and the added trend line. Select the chart, click the Chart Elements button, and then click the Trendline checkbox. We will illustrate this using the hsb2 data. You can add a trendline to an Excel chart in just a few clicks. This is what I've got so far: B <- as.matrix(read.table("clipboard")) Stata makes it very easy to create a scatterplot and regression line using the graph twoway command. After that, I am going to add a trend line, but I am having problems figuring out how. Change your graph to a scatter plot by heading to Setup - Chart Type - Scatter chart Navigate to Customize - Series - Trendline. Format a trendline Click anywhere in the chart. Either right click on your graph or chart and go down to the Trend Lines option on the drop-down menu. Trend lines are commonly used to study problems of prediction (regression analysis) and to. You can add a trend line in a couple of different ways. I have a data set with number of people at a certain age (ranging from 0-105+), recorded in the period 1846-2014, and I am making a scatterplot of the summed amount of people by year there's one data set for males and one for females. In the Add Trendline dialog box, select any data series options you want, and click OK. You can add a trend line to a data series in a scatter plot.
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