The phrase "an obvious pattern" is correct and usable in written English.
It can be used when discussing something that is clearly discernible or easily recognizable in data, behavior, or trends.
Example: "After analyzing the results, we noticed an obvious pattern in the participants' responses that indicated a preference for the new product."
Alternatives: "a clear trend" or "a distinct pattern".
When comparing data from all surfaces, an obvious pattern emerged (Fig. 4d).
Examine Mike Tannenbaum's transaction history as the Jets' general manager, and an obvious pattern emerges.
The crowd numbered about five hundred, from China and abroad, and it bore an obvious pattern: the Westerners were old and the Chinese were young.
And where a non-fiction narrative follows an obvious pattern (triumph against the odds, etc), it will fail just as fiction fails by being mechanical and manipulative.
The decrease in foam cells was insignificant (p = 0.149), although an obvious pattern of reduction as a result of PsP treatment was observed.
This discovery came after the researchers reviewed more than 1,400 patient records, and identified an obvious pattern among those with ovarian cancer who were using beta blockers, most often to control their blood pressure.
Likewise, an examination of the temporal distribution of phage type isolation does not yield any obvious pattern at this time.
There is, however, a more obvious pattern looking at the length (the word count) of the speeches: The first years of the New Labour administration saw a marked increase in the length of the address the Queen was expected to give – and the trend didn't pass unnoticed at the time.
A "very obvious" pattern already found was linked to seasons, she added.
If you look at the lists of best second-weekend drops, you'll notice a pretty obvious pattern.
Finally, miRNA expression could be regulated by mechanisms very different from the mechanisms that regulate mRNA expression, resulting in a less obvious pattern between expression and copy numbers.
