Help Needed for "firdes.root_raised_cosine"

Dear all, I am currently going through the tutorials of GNU Radio. Here I have doubts on "firdes.root_raised_cosine". For example, in the "QPSK Mod and Demod" chapter, "firdes.root_raised_cosine" has been used where there are five types of data inside the bracket after

Have you used radioconda to install GNU Radio and radio related software? We'd like to hear from you.

Hello all, Ryan Volz and I have put together a short (6 questions) survey to understand usage of Radioconda - the Windows/Mac OS/Linux installer for GNU Radio and other radio related software packages, and also to get suggestions on what other software to package with Radioconda. The