Data frames can be treated as vectors when it comes to replacing values. For example in a data frame that all the not available entries have been encoded as -1, we can change them to NA as follows:
dataFrame[dataFrame == -1] = NA
If you looking for one of the best portal to know how you can easily search control panel in windows 10 http://controlpanelwindows10.com also all information available here will be displayed you in the form of images. Try out for once.