ipsumdump, ipaggcreate, ipaggmanip: add page (#6966)

pages/common/ipaggmanip.md

@@ -0,0 +1,16 @@
+# ipaggmanip
+
+> Manipulate aggregate statistics produced by `ipaggcreate`.
+> More information: <https://manned.org/ipaggmanip>.
+
+- Combine labels equal in their high-order bits:
+
+`ipaggmanip --prefix {{16}} {{path/to/file}}`
+
+- Remove labels with a count smaller than a given number of bytes and output a random sample of such labels:
+
+`ipaggmanip --cut-smaller {{100}} --cull-labels {{5}} {{path/to/file}}`
+
+- Replace each label's count with 1 if it is non-zero:
+
+`ipaggmanip --posterize {{path/to/file}}`