Following is an example for basic technical writing.
“The result is excellent because the accuracy of the forecast was 60%, which was high.”
Beginners should write:
“Table 1 shows that accuracy was ((20+80)/200=) 60%. This is a high value for accuracy. Therefore, this is an excellent result.”
To a beginner, a good practice is to break down a complex sentence into simple statements. The original text was broken down into three statements in the rewrite:
By breaking down a long sentence into short statements, the author will be able to examine the robustness of each statement more easily. Therefore, writing short sentences helps to avoid confusion.
In the above example, Statement (1) states a fact. The author must make sure that this fact is correct. He/she must also make sure that it is clear to the reader. For example, if the author doubts whether this statement is clear to the reader, it could be expanded to something like this:
“Table 1 shows the confusion matrix of the forecast. Row 1, Column 1 shows the “true negative”, which is 40. Row 2, Column 2 shows the “true positive”, which is 80. Accuracy of the forecast is therefore (40+80)/200 = 60%.”
Here I assume that terminology in “confusion matrix” were explained before this statement. If not, the author must make sure that it is. Besides, the author must not assume that the readers see what the author wants them to see in tables and figures. It is always a good idea to guide the readers by referring to indices and values in the table or figure.
Statement (2) is an interpretation. An interpretation can be challenged. In this case, the reader could challenge whether 60% is a high value for accuracy. To support this interpretation, the authors might want to expand the sentence to something like this:
“Tsang (2014) suggested forecasting in this application is next to impossible. Any forecast that produces accuracy significantly above 50% should be considered excellent.”
Statement (3) must be a logical conclusion from Statement (2). In this case, the readers could challenge whether “a high value in accuracy” implies “excellent result”. The author may want to cover potential challenges like this.